Jar to dex conversion not working in dex2jar-2.0 about dex2jar HOT 8 CLOSED

Please any one help me this is major issue in my Development.....! How to solve.....!

How to convert JAR to DEX (dex2jar-2.0)

I have two type of error.

1. no classfiles specified.

2. UNEXPECTED TOP-LEVEL ERROR:
   java.lang.OutOfMemoryError: GC overhead limit exceeded
   at com.android.dx.ssa.SsaRenamer$BlockRenamer.updateSuccessorPhis(SsaRenamer.java:629)
   at com.android.dx.ssa.SsaRenamer$BlockRenamer.process(SsaRenamer.java:376)
   at com.android.dx.ssa.SsaRenamer$1.visitBlock(SsaRenamer.java:167)
   at com.android.dx.ssa.SsaMethod.forEachBlockDepthFirstDom(SsaMethod.java:813)
   at com.android.dx.ssa.SsaRenamer.run(SsaRenamer.java:164)
   at com.android.dx.ssa.SsaConverter.convertToSsaMethod(SsaConverter.java:53)
   at com.android.dx.ssa.Optimizer.optimize(Optimizer.java:99)
   at com.android.dx.ssa.Optimizer.optimize(Optimizer.java:73)
   at com.android.dx.dex.cf.CfTranslator.processMethods(CfTranslator.java:273)
   at com.android.dx.dex.cf.CfTranslator.translate0(CfTranslator.java:134)
   at com.android.dx.dex.cf.CfTranslator.translate(CfTranslator.java:87)
   at com.android.dx.command.dexer.Main.processClass(Main.java:483)
   at com.android.dx.command.dexer.Main.processFileBytes(Main.java:455)
   at com.android.dx.command.dexer.Main.access$400(Main.java:67)
   at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:394)
   at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:245)
   at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:131)
   at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:109)
   at com.android.dx.command.dexer.Main.processOne(Main.java:418)
   at com.android.dx.command.dexer.Main.processAllFiles(Main.java:329)
   at com.android.dx.command.dexer.Main.run(Main.java:206)
   at com.android.dx.command.dexer.Main.main(Main.java:174)
   at com.android.dx.command.Main.main(Main.java:95)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:606)
   at com.googlecode.dex2jar.tools.Jar2Dex.doCommandLine(Jar2Dex.java:99)
   at com.googlecode.dex2jar.tools.BaseCmd.doMain(BaseCmd.java:288)
   at com.googlecode.dex2jar.tools.Jar2Dex.main(Jar2Dex.java:32)

from dex2jar.

My development working flow...
Steps:

1. dex to jar
2. jar to jasmin
   3 ) view jasmin code and add some development functionality
3. jasmin to jar
4. jar to dex .

4th setp i have error:(jasmin to jar )

java.lang.NullPointerException
at com.googlecode.d2j.jasmin.JasminParser.unEscape(JasminParser.java:356)
at com.googlecode.d2j.jasmin.JasminParser.sField(JasminParser.java:5672)
at com.googlecode.d2j.jasmin.JasminParser.sFile(JasminParser.java:1062)
at com.googlecode.d2j.jasmin.JasminParser.parse(JasminParser.java:961)
at com.googlecode.d2j.jasmin.Jasmin2JarCmd.assemble1(Jasmin2JarCmd.java:130)
at com.googlecode.d2j.jasmin.Jasmin2JarCmd.access$0(Jasmin2JarCmd.java:121)
at com.googlecode.d2j.jasmin.Jasmin2JarCmd$1.visitFile(Jasmin2JarCmd.java:114)
at com.googlecode.d2j.jasmin.Jasmin2JarCmd$1.visitFile(Jasmin2JarCmd.java:1)
at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:135)
at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:199)
at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:69)
at java.nio.file.Files.walkFileTree(Files.java:2602)
at java.nio.file.Files.walkFileTree(Files.java:2635)
at com.googlecode.d2j.jasmin.Jasmin2JarCmd.travelFileTree(Jasmin2JarCmd.java:110)
at com.googlecode.d2j.jasmin.Jasmin2JarCmd.assemble0(Jasmin2JarCmd.java:99)
at com.googlecode.d2j.jasmin.Jasmin2JarCmd.doCommandLine(Jasmin2JarCmd.java:92)
at com.googlecode.dex2jar.tools.BaseCmd.doMain(BaseCmd.java:288)
at com.googlecode.d2j.jasmin.Jasmin2JarCmd.main(Jasmin2JarCmd.java:56)

from dex2jar.

me too.
I use it that happened error

call com.android.dx.command.Main.main[--dex, --no-strict, --output=]
no classfiles specified

from dex2jar.

I was also trying this on the mac but it works perfectly in Windows is running dex2jar, May you try it.

from dex2jar.

same issue 6 years later lol

from dex2jar.

See #544
If it still does not work, assign more RAM: https://stackoverflow.com/questions/1565388/increase-heap-size-in-java

from dex2jar.

See #544 If it still does not work, assign more RAM: https://stackoverflow.com/questions/1565388/increase-heap-size-in-java

thanks for the quick reply.
I've already tried assigning more ram by following this guide:
https://helpdeskgeek.com/help-desk/how-to-fix-could-not-create-the-java-virtual-machine-error/#:~:text=The%20most%20common%20cause%20for,to%20launch%20the%20VM%20client.
However, he has followed another approach telling java to use more RAM (which in my case didn't resolve the issue),
so I'll try the way described in your linked stackoverflow question.
cheers

from dex2jar.

-Xmx512M might not be enough. I always try using my PC's amount of RAM divided by 2. If you have 32 GB, it will surely be slower, but you will surely have enough allocated. Thus, I use -Xmx16G

from dex2jar.