Jar to dex conversion not working in dex2jar-2.0

[TamilanPeriyasamy]

Run cmd :
dex2jar-2.0/d2j-jar2dex.sh -f -o /home/workspace/Secure/debug/TestApp/classes.dex /home/workspace/Secure/output/test_TestApp.jar

call com.android.dx.command.Main.main[--dex, --no-strict, --output=/home/lakeba/workspace /home/workspace/Secure/debug/TestApp/classes.dex, /home/workspace/Secure/output/test_TestApp.jar]
no classfiles specified.

[TamilanPeriyasamy]

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)

[TamilanPeriyasamy]

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)

[veryitman]

me too.
I use it that happened error

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

[joshmarion777]

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

[bennoinbeta]

same issue 6 years later lol

[ThexXTURBOXx]

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

[bennoinbeta]

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

[ThexXTURBOXx]

-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