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hamcrest-library is only needed for the tests. Therefore it should have test 
scope only.

{{{
// start with [ contains a number in between and ends with ]
nodeKey.matches("^\\[\\d+\\]$") &&
// starts with "[0" but is not "[0]" e.g. 0123 is not valid.
// *TODO collapse these two conditions into one with a
// neatly compiled REGEX.*
nodeKey.startsWith("[0") && nodeKey.equals("[0]"),
}}}

What steps will reproduce the problem?
  JSONObject json = new JSONObject(JSON_STRING_FOR_PATH_TEST);
  assertThat(json, JsonMatchers.hasJsonPath("json1.json2.json3[0].field")); // SUCCES 

  assertThat(json, JsonMatchers.hasJsonPath("json1.json2.json3[*].field")); // Fails because of '*'


What is the expected output? What do you see instead?
Expected: assert suceeds
Actual: java.lang.IllegalArgumentException: [*] is not a valid array index for 
a JSON array

What version of the product are you using? On what operating system?
version 1.0-SNAPSHOT, sun jvm 1.7 64bit, linux (Ubuntu)


Please provide any additional information below.
It would be great if jsonmatcher supports JSONPath expressions as described in 
http://goessner.net/articles/JsonPath/

The current code uses hamcrest-all instead of hamcrest-core. hamcrest-all is a 
single jar, which assembles all the classes of hamcrest-core and 
hamcrest-library. Unfortunately JUnit 4.11 dependends on hamcrest-core. This 
causes classpath problems.

Therefore I changed the dependency of jsonmatcher from hamcrest-all to 
hamcrest-core. In order to avoid compilation problems I upgraded the version to 
1.3, too.