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Java course materials

Home Page: https://www.youtube.com/playlist?list=PLrCZzMib1e9pnFbVV3u4s7ki5NTnm7WgT

License: MIT License

Java 84.92% CSS 2.50% HTML 8.02% JavaScript 1.91% XSLT 1.27% PLpgSQL 0.48% Dockerfile 0.48% TSQL 0.44%

concurrency course docker gradle hibernate http-client http-server java jpa spring spring-boot spring-data websocket

atom's Introduction

Java Technoatom/Technosphere

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Course repository. All course lectures/sources/homeworks are available here.

Lectures list:

Lecture 1. Basics, git
Lecture 2. Classes, gradle
Lecture 3. Collections, Exceptions, Generics
Lecture 4. Web client, HTTP, REST
Lecture 5. Web server, Spring, Annotations
Lecture 6. Databases, SQL, JDBC
Lecture 7. ORM, Hibernate
Lecture 8. WebSocket
Lecture 9. Game Server architecture
Lecture 10. Basic concurrency, Critical section
Lecture 11. Basic concurrency, Concurrent data structures
Lecture 12. GC, Heap

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atom's Issues

lecture03 HomeWork 2

Спасибо! Классный курс!

Есть проблема с домашней работой №2 из лекции 3.

https://en.wikipedia.org/wiki/Bulls_and_Cows
Цитата:
"The game play for the word version is as follows.

One player (the Host) thinks of an isogram word (i.e. no letter appears twice) and, if the word length is not pre-determined, announces the number of letters in the word.
Other players (the Guessers) try to figure out that word by guessing isogram words containing the same number of letters.
The Host responds with the number of Cows & Bulls for each guessed word. As with the digit version, "Cow" means a letter in the wrong position and "Bull" means a letter in the right position."

Слова же не должны содержать повторяющиеся символы?
Ну или надо определить правила оценки результатов для слов с повторяющимися символами.

Game Server Client

~~Move to separate module~~
~~Migrate bower to gradle~~
Remove client logic
~~WebSocket -> SockJS~~ No
Client finalizing

слайды и план лекции №1

Введение JDK, JRE, JVM
Hello world в блокноте
javac
jar
java

git+github
gradle - что такое
gradle commands
демонстрация - тесты должны пройти
hello world в IDEA + pull request с hello world
Опросник:
кто использовал какие технологии?
ДЗ - выполнить тесты на гитхабе

Make sure all lectures are correctly working with gradle

Migrate to gradle kotlin dsl

make sure everything is working in travis
make sure changes correlate with youtube

Game Server backend

~~Multiple session per process~~ Done
~~STOMP web-socket~~ No
~~Level object~~ Done
~~Replica transfer~~ Almost done (depends on client)
Finish condition
All leave condition
Game with less than 4 players

Lecture06 close connection

В уроке рассматривается подключение к базе данных с помощью jdbc драйвера.
нигде не увидел информации о закрытии активного подключения после выполнения задачи.
Где необходимо ставить:
statment.close();
connection.close();
?

Не удаляется с канваса Wood при взрыве бомбы

Ситуация: Pawn стоит между ящиками и кладет бомбу:
До взрыва
После взрыва
Лог с клиента (Cудя по логу все 3 стенки удалились)
Лог с сервера (Сначала идет реплика до взрыва, взрыв, еще одна реплика, в которой нет бомбы, далее удаление стен и еще одна реплика, в которой нет взорванных стен).

Как видно из картинки, должны были взорваться верхняя, левая и нижняя стенки относительно Pawn'a. Судя по логам так и есть, однако верхняя стенка продолжает отрисовываться на канвасе.

Zagar client zoom bug

2016-11-29 22:16:01,984 INFO [game] view.GameFrame (GameFrame.java:45) - PLAYER CELLS SIZE: 0
2016-11-29 22:16:01,984 INFO [game] view.GameFrame (GameFrame.java:46) - LEADERBOARD:
[null, null, null, null, null, null, null, null, null, null]
2016-11-29 22:16:01,985 DEBUG [game] view.GameCanvas (GameCanvas.java:35) - CANVAS RENDER
2016-11-29 22:16:01,988 DEBUG [game] view.GameCanvas (GameCanvas.java:43) - ANTIALIASING SET
2016-11-29 22:16:01,989 DEBUG [game] view.GameCanvas (GameCanvas.java:69) - RENDER GRID
2016-11-29 22:16:01,989 DEBUG [game] view.GameCanvas (GameCanvas.java:70) - ZOOM: 0.0
2016-11-29 22:16:01,989 DEBUG [game] view.GameCanvas (GameCanvas.java:71) - AVGX: 42.0; AVGY: 856.0

zoom variable comes to canvas.render() with zero value, that causes infinite cycling

Проблема запуска проекта из лекции 7 (ветка lecture06 )

В двух словах, база поднята локально postgresql 10.4. Проект по лекции 6 конектится через jdbc postgresql без проблем, при попытке стартануть дефолтный проект из лекции 7 спринг падает с логом:

"C:\Program Files\Java\jdk-10.0.1\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=51557 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=localhost -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2018.1.4\lib\idea_rt.jar=51558:C:\Program Files\JetBrains\IntelliJ IDEA 2018.1.4\bin" -Dfile.encoding=UTF-8 -classpath 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g.javassist\javassist\3.22.0-GA\3e83394258ae2089be7219b971ec21a8288528ad\javassist-3.22.0-GA.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\antlr\antlr\2.7.7\83cd2cd674a217ade95a4bb83a8a14f351f48bd0\antlr-2.7.7.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.jboss.spec.javax.transaction\jboss-transaction-api_1.2_spec\1.0.1.Final\4441f144a2a1f46ed48fcc6b476a4b6295e6d524\jboss-transaction-api_1.2_spec-1.0.1.Final.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.jboss\jandex\2.0.3.Final\bfc4d6257dbff7a33a357f0de116be6ff951d849\jandex-2.0.3.Final.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\com.fasterxml\classmate\1.3.1\2ad2fd09dcf5607ca96f8ef432096a96986c40a\classmate-1.3.1.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\dom4j\dom4j\1.6.1\5d3ccc056b6f056dbf0dddfdf43894b9065a8f94\dom4j-1.6.1.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\javax.transaction\javax.transaction-api\1.2\d81aff979d603edd90dcd8db2abc1f4ce6479e3e\javax.transaction-api-1.2.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework\spring-aspects\5.0.4.RELEASE\454ee13fc4f439065572dd526e81c699d1d61e3e\spring-aspects-5.0.4.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-autoconfigure\2.0.0.RELEASE\c89896a469ecf92996ecba40755919896ace5470\spring-boot-autoconfigure-2.0.0.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot-actuator\2.0.0.RELEASE\309a5d45b09e361d29c9e7d1def644d70a50173b\spring-boot-actuator-2.0.0.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework.boot\spring-boot\2.0.0.RELEASE\771da2071ff14a47f108642a641c204ae4ef7b15\spring-boot-2.0.0.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\javax.annotation\javax.annotation-api\1.3.2\934c04d3cfef185a8008e7bf34331b79730a9d43\javax.annotation-api-1.3.2.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework\spring-context\5.0.4.RELEASE\3e76d08c851113077642c5704f0f94d5ce58e905\spring-context-5.0.4.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework\spring-aop\5.0.4.RELEASE\f8e029e54c0267dadb6b9f713f3feb54ec4f3a0e\spring-aop-5.0.4.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework\spring-orm\5.0.4.RELEASE\dc83e08ecdb4ab28339f87358b53d75b4a8d1b9\spring-orm-5.0.4.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework\spring-jdbc\5.0.4.RELEASE\6b5ac0db11d81d6319ebd0bb253b2f01713df3ab\spring-jdbc-5.0.4.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework\spring-tx\5.0.4.RELEASE\7afc193c5d2b812ee6d2ccaf6fcc81fb83bfb4a7\spring-tx-5.0.4.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework\spring-beans\5.0.4.RELEASE\7a8c3d48d4c33621e64d1399721d8e067450fcbd\spring-beans-5.0.4.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework\spring-expression\5.0.4.RELEASE\4bda161f2e34c1486f2527a23eb47293567f473c\spring-expression-5.0.4.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.springframework\spring-core\5.0.4.RELEASE\2221a957b5561a34f044350ba4e30ef5870254a3\spring-core-5.0.4.RELEASE.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.yaml\snakeyaml\1.19\2d998d3d674b172a588e54ab619854d073f555b5\snakeyaml-1.19.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.datatype\jackson-datatype-jdk8\2.9.4\63ac052d52a70a15820d3dc07ea757826fd51d40\jackson-datatype-jdk8-2.9.4.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.datatype\jackson-datatype-jsr310\2.9.4\12d52679a6615c7972ea25bd8ebb60b191fe79b7\jackson-datatype-jsr310-2.9.4.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.module\jackson-module-parameter-names\2.9.4\5833c819877c3e85bad847f4d2fa4e70379217c6\jackson-module-parameter-names-2.9.4.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-databind\2.9.4\498bbc3b94f566982c7f7c6d4d303fce365529be\jackson-databind-2.9.4.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.apache.tomcat.embed\tomcat-embed-websocket\8.5.28\8a5a48740dd80cad644ceb541e77fd8e0809e3b7\tomcat-embed-websocket-8.5.28.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.apache.tomcat.embed\tomcat-embed-core\8.5.28\b684c98cf77c6528079c4e59fc1feeb218bf82f1\tomcat-embed-core-8.5.28.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.apache.tomcat.embed\tomcat-embed-el\8.5.28\75745598f60646ccf0c4b105468a9c8be9b8432e\tomcat-embed-el-8.5.28.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\javax.validation\validation-api\2.0.1.Final\cb855558e6271b1b32e716d24cb85c7f583ce09e\validation-api-2.0.1.Final.jar;C:\Users\admin\.gradle\caches\modules-2\files-2.1\org.hdrhistogram\HdrHistogram\2.1.10\9e1ac84eed220281841b75e72fb9de5a297fbf04\HdrHistogram-2.1.10.jar;C:\Users\admin\.gradle\caches\modules-2\file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ru.atom.lecture07.server.ChatApplication

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.0.0.RELEASE)

2018-06-05 23:43:00.864  INFO 2532 --- [           main] r.atom.lecture07.server.ChatApplication  : Starting ChatApplication on DESKTOP-T7BAGC3 with PID 2532 (C:\Users\admin\Desktop\work\atom\lecture07\out\production\classes started by admin in C:\Users\admin\Desktop\work\atom\lecture07)
2018-06-05 23:43:00.879  INFO 2532 --- [           main] r.atom.lecture07.server.ChatApplication  : No active profile set, falling back to default profiles: default
2018-06-05 23:43:01.051  INFO 2532 --- [           main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@61fe30: startup date [Tue Jun 05 23:43:01 VLAT 2018]; root of context hierarchy
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils$1 (file:/C:/Users/admin/.gradle/caches/modules-2/files-2.1/org.springframework/spring-core/5.0.4.RELEASE/2221a957b5561a34f044350ba4e30ef5870254a3/spring-core-5.0.4.RELEASE.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2018-06-05 23:43:04.223  INFO 2532 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$a810e18c] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2018-06-05 23:43:04.739  INFO 2532 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8090 (http)
2018-06-05 23:43:04.801  INFO 2532 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2018-06-05 23:43:04.801  INFO 2532 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.28
2018-06-05 23:43:04.801  INFO 2532 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jdk-10.0.1\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files (x86)\Google\Chrome\Application;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Users\admin\AppData\Local\Microsoft\WindowsApps;;.]
2018-06-05 23:43:04.973  INFO 2532 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2018-06-05 23:43:04.973  INFO 2532 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 3953 ms
2018-06-05 23:43:06.161  INFO 2532 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Servlet dispatcherServlet mapped to [/]
2018-06-05 23:43:06.176  INFO 2532 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-06-05 23:43:06.176  INFO 2532 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-06-05 23:43:06.176  INFO 2532 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-06-05 23:43:06.176  INFO 2532 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2018-06-05 23:43:06.176  INFO 2532 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpTraceFilter' to: [/*]
2018-06-05 23:43:06.176  INFO 2532 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'webMvcMetricsFilter' to: [/*]
2018-06-05 23:43:06.317  INFO 2532 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2018-06-05 23:43:06.411  INFO 2532 --- [           main] com.zaxxer.hikari.pool.PoolBase          : HikariPool-1 - Driver does not support get/set network timeout for connections. (Method org.postgresql.jdbc4.Jdbc4Connection.getNetworkTimeout() is not yet implemented.)
2018-06-05 23:43:06.442  WARN 2532 --- [           main] com.zaxxer.hikari.pool.PoolBase          : HikariPool-1 - Default transaction isolation level detection failed (ResultSet закрыт.).
2018-06-05 23:43:06.442 ERROR 2532 --- [           main] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.

org.postgresql.util.PSQLException: ResultSet закрыт.
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.checkClosed(AbstractJdbc2ResultSet.java:2852) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.setFetchSize(AbstractJdbc2ResultSet.java:1875) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc4.Jdbc4Statement.createResultSet(Jdbc4Statement.java:37) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement$StatementResultHandler.handleResultRows(AbstractJdbc2Statement.java:221) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1853) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:561) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:405) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.execSQLUpdate(AbstractJdbc2Connection.java:382) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.getTransactionIsolation(AbstractJdbc2Connection.java:904) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.checkDriverSupport(PoolBase.java:457) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.setupConnection(PoolBase.java:412) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:370) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:194) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:460) [HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:534) [HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-2.7.8.jar:na]
	at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) [spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) [spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) [spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:318) [spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:355) [spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.DatabaseLookup.getDatabase(DatabaseLookup.java:72) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.JpaProperties.determineDatabase(JpaProperties.java:168) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.jpaVendorAdapter(JpaBaseConfiguration.java:111) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$c6e7a3fb.CGLIB$jpaVendorAdapter$6(<generated>) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$c6e7a3fb$$FastClassBySpringCGLIB$$82915742.invoke(<generated>) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361) [spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$c6e7a3fb.jpaVendorAdapter(<generated>) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:579) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:815) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:721) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:470) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:815) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:721) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:470) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1085) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:858) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at ru.atom.lecture07.server.ChatApplication.main(ChatApplication.java:12) ~[classes/:na]

2018-06-05 23:43:06.458  WARN 2532 --- [           main] o.s.b.a.orm.jpa.DatabaseLookup           : Unable to determine jdbc url from datasource

org.springframework.jdbc.support.MetaDataAccessException: Could not get Connection for extracting meta data; nested exception is org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is org.postgresql.util.PSQLException: ResultSet закрыт.
	at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:327) ~[spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:355) ~[spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.DatabaseLookup.getDatabase(DatabaseLookup.java:72) ~[spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.JpaProperties.determineDatabase(JpaProperties.java:168) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.jpaVendorAdapter(JpaBaseConfiguration.java:111) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$c6e7a3fb.CGLIB$jpaVendorAdapter$6(<generated>) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$c6e7a3fb$$FastClassBySpringCGLIB$$82915742.invoke(<generated>) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361) [spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$c6e7a3fb.jpaVendorAdapter(<generated>) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:579) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:815) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:721) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:470) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:815) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:721) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:470) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1085) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:858) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at ru.atom.lecture07.server.ChatApplication.main(ChatApplication.java:12) ~[classes/:na]
Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is org.postgresql.util.PSQLException: ResultSet закрыт.
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:81) ~[spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:318) ~[spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	... 61 common frames omitted
Caused by: org.postgresql.util.PSQLException: ResultSet закрыт.
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.checkClosed(AbstractJdbc2ResultSet.java:2852) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.setFetchSize(AbstractJdbc2ResultSet.java:1875) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc4.Jdbc4Statement.createResultSet(Jdbc4Statement.java:37) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement$StatementResultHandler.handleResultRows(AbstractJdbc2Statement.java:221) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1853) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:561) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:405) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.execSQLUpdate(AbstractJdbc2Connection.java:382) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.getTransactionIsolation(AbstractJdbc2Connection.java:904) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.checkDriverSupport(PoolBase.java:457) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.setupConnection(PoolBase.java:412) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:370) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:194) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:460) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:534) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-2.7.8.jar:na]
	at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) ~[spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) ~[spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) ~[spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	... 62 common frames omitted

2018-06-05 23:43:06.489  INFO 2532 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2018-06-05 23:43:06.536  INFO 2532 --- [           main] com.zaxxer.hikari.pool.PoolBase          : HikariPool-1 - Driver does not support get/set network timeout for connections. (Method org.postgresql.jdbc4.Jdbc4Connection.getNetworkTimeout() is not yet implemented.)
2018-06-05 23:43:06.536  WARN 2532 --- [           main] com.zaxxer.hikari.pool.PoolBase          : HikariPool-1 - Default transaction isolation level detection failed (ResultSet закрыт.).
2018-06-05 23:43:06.536 ERROR 2532 --- [           main] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.

org.postgresql.util.PSQLException: ResultSet закрыт.
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.checkClosed(AbstractJdbc2ResultSet.java:2852) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.setFetchSize(AbstractJdbc2ResultSet.java:1875) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc4.Jdbc4Statement.createResultSet(Jdbc4Statement.java:37) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement$StatementResultHandler.handleResultRows(AbstractJdbc2Statement.java:221) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1853) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:561) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:405) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.execSQLUpdate(AbstractJdbc2Connection.java:382) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.getTransactionIsolation(AbstractJdbc2Connection.java:904) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.checkDriverSupport(PoolBase.java:457) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.setupConnection(PoolBase.java:412) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:370) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:194) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:460) [HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:534) [HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-2.7.8.jar:na]
	at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) [spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) [spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) [spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:324) [spring-jdbc-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.jdbc.EmbeddedDatabaseConnection.isEmbedded(EmbeddedDatabaseConnection.java:123) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateDefaultDdlAutoProvider.getDefaultDdlAuto(HibernateDefaultDdlAutoProvider.java:42) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration.getVendorProperties(HibernateJpaConfiguration.java:120) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.entityManagerFactory(JpaBaseConfiguration.java:135) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$c6e7a3fb.CGLIB$entityManagerFactory$5(<generated>) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$c6e7a3fb$$FastClassBySpringCGLIB$$82915742.invoke(<generated>) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [spring-core-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361) [spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration$$EnhancerBySpringCGLIB$$c6e7a3fb.entityManagerFactory(<generated>) [spring-boot-autoconfigure-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:579) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1250) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1085) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:858) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at ru.atom.lecture07.server.ChatApplication.main(ChatApplication.java:12) ~[classes/:na]

2018-06-05 23:43:06.583  INFO 2532 --- [           main] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2018-06-05 23:43:06.598  INFO 2532 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
	name: default
	...]
2018-06-05 23:43:06.739  INFO 2532 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {5.2.16.Final}
2018-06-05 23:43:06.755  INFO 2532 --- [           main] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2018-06-05 23:43:06.801  INFO 2532 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
2018-06-05 23:43:06.973  INFO 2532 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.PostgreSQLDialect
2018-06-05 23:43:07.005  INFO 2532 --- [           main] o.h.e.j.e.i.LobCreatorBuilderImpl        : HHH000422: Disabling contextual LOB creation as connection was null
2018-06-05 23:43:07.005  INFO 2532 --- [           main] org.hibernate.type.BasicTypeRegistry     : HHH000270: Type registration [java.util.UUID] overrides previous : org.hibernate.type.UUIDBinaryType@6f1c3f18
2018-06-05 23:43:07.575  INFO 2532 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2018-06-05 23:43:07.638  INFO 2532 --- [           main] com.zaxxer.hikari.pool.PoolBase          : HikariPool-1 - Driver does not support get/set network timeout for connections. (Method org.postgresql.jdbc4.Jdbc4Connection.getNetworkTimeout() is not yet implemented.)
2018-06-05 23:43:07.638  WARN 2532 --- [           main] com.zaxxer.hikari.pool.PoolBase          : HikariPool-1 - Default transaction isolation level detection failed (ResultSet закрыт.).
2018-06-05 23:43:07.638 ERROR 2532 --- [           main] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.

org.postgresql.util.PSQLException: ResultSet закрыт.
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.checkClosed(AbstractJdbc2ResultSet.java:2852) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.setFetchSize(AbstractJdbc2ResultSet.java:1875) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc4.Jdbc4Statement.createResultSet(Jdbc4Statement.java:37) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement$StatementResultHandler.handleResultRows(AbstractJdbc2Statement.java:221) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1853) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:561) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:405) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.execSQLUpdate(AbstractJdbc2Connection.java:382) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.getTransactionIsolation(AbstractJdbc2Connection.java:904) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.checkDriverSupport(PoolBase.java:457) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.setupConnection(PoolBase.java:412) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:370) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:194) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:460) [HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:534) [HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-2.7.8.jar:na]
	at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl.getIsolatedConnection(DdlTransactionIsolatorNonJtaImpl.java:43) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.internal.exec.ImprovedExtractionContextImpl.getJdbcConnection(ImprovedExtractionContextImpl.java:60) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorLegacyImpl.extractMetadata(SequenceInformationExtractorLegacyImpl.java:40) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.initializeSequences(DatabaseInformationImpl.java:65) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.<init>(DatabaseInformationImpl.java:59) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.internal.Helper.buildDatabaseInformation(Helper.java:132) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:96) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:183) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:312) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:460) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:892) [hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:57) [spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) [spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:388) [spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:377) [spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) [spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1769) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1706) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:583) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) [spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1085) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:858) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at ru.atom.lecture07.server.ChatApplication.main(ChatApplication.java:12) ~[classes/:na]

2018-06-05 23:43:07.654  WARN 2532 --- [           main] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 0, SQLState: 55000
2018-06-05 23:43:07.654 ERROR 2532 --- [           main] o.h.engine.jdbc.spi.SqlExceptionHelper   : ResultSet закрыт.
2018-06-05 23:43:07.654  WARN 2532 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory
2018-06-05 23:43:07.654  INFO 2532 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2018-06-05 23:43:07.698  INFO 2532 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-06-05 23:43:07.702 ERROR 2532 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1710) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:583) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1085) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:858) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at ru.atom.lecture07.server.ChatApplication.main(ChatApplication.java:12) [classes/:na]
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:970) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:895) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:57) ~[spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:388) ~[spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:377) ~[spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1769) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1706) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	... 16 common frames omitted
Caused by: org.hibernate.exception.GenericJDBCException: Unable to open JDBC Connection for DDL execution
	at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl.getIsolatedConnection(DdlTransactionIsolatorNonJtaImpl.java:69) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.internal.exec.ImprovedExtractionContextImpl.getJdbcConnection(ImprovedExtractionContextImpl.java:60) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorLegacyImpl.extractMetadata(SequenceInformationExtractorLegacyImpl.java:40) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.initializeSequences(DatabaseInformationImpl.java:65) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.<init>(DatabaseInformationImpl.java:59) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.internal.Helper.buildDatabaseInformation(Helper.java:132) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:96) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:183) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:72) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:312) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:460) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:892) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	... 23 common frames omitted
Caused by: org.postgresql.util.PSQLException: ResultSet закрыт.
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.checkClosed(AbstractJdbc2ResultSet.java:2852) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2ResultSet.setFetchSize(AbstractJdbc2ResultSet.java:1875) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc4.Jdbc4Statement.createResultSet(Jdbc4Statement.java:37) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement$StatementResultHandler.handleResultRows(AbstractJdbc2Statement.java:221) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1853) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:561) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:405) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.execSQLUpdate(AbstractJdbc2Connection.java:382) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at org.postgresql.jdbc2.AbstractJdbc2Connection.getTransactionIsolation(AbstractJdbc2Connection.java:904) ~[postgresql-9.3-1102.jdbc41.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.checkDriverSupport(PoolBase.java:457) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.setupConnection(PoolBase.java:412) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:370) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:194) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:460) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:534) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-2.7.8.jar:na]
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-2.7.8.jar:na]
	at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	at org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl.getIsolatedConnection(DdlTransactionIsolatorNonJtaImpl.java:43) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
	... 34 common frames omitted


Process finished with exit code 1

Думал что проблема в том что не хватает аннотаций для ентети в классе Message, но после указаний + реализации имплеметаци интерфейса MessageDao проблема осталась та же самая. Так же пытался указать в ручную файл с настройками подключения через анотацию @propertysource("classpath:application.properties") на класс ChatApplication и это тоже не помогло.

Вот файл с настройками application.properties, в котором уже эксперементировал с разными параметрами, с дефолтным так же падает при условии что параметры базы прописаны верно.

# ===============================
# = DATA SOURCE
# ===============================
#JDBC Driver
#db.driver = org.postgresql.Driver
server.port=8090
# database connection
spring.datasource.url = jdbc:postgresql://127.0.0.1:5432/test_db
spring.datasource.username = postgres
spring.datasource.password = admin
spring.datasource.driver-class-name = org.postgresql.Driver
spring.datasource.validation-query= select 1
spring.datasource.test-on-borrow=true
# ===============================
# = JPA / HIBERNATE
# ===============================
# Session per thread
spring.jpa.properties.hibernate.current_session_context_class = thread

# Log each sql query
spring.jpa.show-sql = true
spring.jpa.properties.hibernate.use_sql_comments = true
spring.jpa.properties.hibernate.format_sql = true

spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults = false
# Hibernate ddl auto (create, create-drop, update): with "update" the database
# schema will be automatically updated accordingly to java entities found in
# the project
spring.jpa.hibernate.ddl-auto = update
spring.jpa.database-platform = org.hibernate.dialect.PostgreSQLDialect
#spring.jpa.database-platform = org.hibernate.dialect.PostgreSQL94Dialect

Try checkstyle gradle plugin

https://docs.gradle.org/current/userguide/checkstyle_plugin.html

expected:
reject PR in case of code style violation

Lecture 01 hometask

User not displayed on chat join

Match maker service

algorithm
- join()
- join(session) - play together
balancing
client -> MM API
MM -> Game Server API

High CPU Utilization

Problem caused by:

while (true) {
ApplicationContext.instance().get(MessageSystem.class).execForService(this);
}

in AccountService & ClientConnectionService

Поднятие сервисов в докере через ansible

Private matchmaking

Добавить возможность получить уникальный идентификатор игровой сессии на заданное количество игроков, так чтобы к сессии можно было подключиться только по нему и её проигнорировал обычный матчмейкинг.

Protocol: HTTP
Path: mm/getlink
Method: POST
QueryParam: name&playerCount
Host: {IP}:8080
ResponseBody: gameId

Наша реализация:

Согласно архитектуре, предложенной всем, у нас есть возможность создать игру:
host:8080/game/create?playerCount=count
Этот интерфейс мы и использовали. В нашей реализации, при создании игры, мы инкрементировали поле lastId, которое использовали, как идентификатор игровой сессии и, соответственно возвращали его как gameId. То есть, когда мы создаем сессию через getLink lastId так же инкрементится, и для общей очереди будет возвращаться уже следующий id. Благодаря этому коллизий между обычным и 'private' матчмейкингом не возникало. В итоге, нам не пришлось как-то делить пул игровых сессий или очередь на создание игры. Затем, получив gameId мы напрямую коннектимся к gs через вебсокет при нажатии на коннект, так же используя дефолтный интерфейс.

В идеале...

Не хотелось бы чтобы кто-то мог стучаться к нам в игру вводя случайные числа, как вариант в нашем случае - генерить идентификатор сессии посложнее, например UUID. Если же вы не отказались от ввода имени как мы - то создавать сессиию для определенных пользователей и пускать туда только их.

В клиенте session null

В классе ServerConnectionSocket

 @OnWebSocketConnect
  public void onConnect(@NotNull Session session) throws IOException {
    this.session = session;

    log.info("Connected!");

    new PacketAuth(Game.login, Game.serverToken).write();
  }

@NotNull Session session иногда является null, поэтому клиент не конектится к серверу. В отладке всё ок. Connection создаётся в конструкторе класса Game()

public Game() {
    this.gameServerUrl = "ws://" + (JOptionPane.showInputDialog(null, "Host", DEFAULT_GAME_SERVER_HOST + ":" + DEFAULT_GAME_SERVER_PORT));

    authenticate();

    final WebSocketClient client = new WebSocketClient();
    socket = new ServerConnectionSocket();
    new Thread(() -> {
      try {
        client.start();
        URI serverURI = new URI(gameServerUrl + "/clientConnection");
        ClientUpgradeRequest request = new ClientUpgradeRequest();
        request.setHeader("Origin", "zagar.io");
        client.connect(socket, serverURI, request); /// ->ПОХОДУ ТУТ ЧТО-ТО не так
        log.info("Trying to connect <" + gameServerUrl + ">");
        socket.awaitClose(7, TimeUnit.DAYS);
      } catch (Throwable t) {
        t.printStackTrace();
      }
    }).start();
  }

[Frontend] Подключение к вебсокету и отображение "Loading..."

В момент открытия страницы с игрой нужно открывался веб сокет коннект, без нажатия на канвас.
Пока не пришло первое сообщение от сервера (POSSESS/первая реплика), канвас должен отображать "Loading..." и быть чёрным.
Сделать траву фоном, а не тайлами. (by @GAMMAKER )

Client, FPS, Division by zero

Sometimes client crashes during FPS calculations.

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