Issue with dex2jar: Index -1 out of bounds for length 0

[mbv]

dex2jar ../app.apk -> ./app-dex2jar.jar
ASM fail to generate .class file: iko/lxf
java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 0
	at org.objectweb.asm.Frame.getConcreteOutputType(Frame.java:1140)
	at org.objectweb.asm.Frame.merge(Frame.java:1185)
	at org.objectweb.asm.CurrentFrame.execute(CurrentFrame.java:53)
	at org.objectweb.asm.MethodWriter.visitVarInsn(MethodWriter.java:927)
	at org.objectweb.asm.ClassReader.readCode(ClassReader.java:2409)
	at org.objectweb.asm.ClassReader.readMethod(ClassReader.java:1514)
	at org.objectweb.asm.ClassReader.accept(ClassReader.java:744)
	at org.objectweb.asm.ClassWriter.replaceAsmInstructions(ClassWriter.java:777)
	at org.objectweb.asm.ClassWriter.toByteArray(ClassWriter.java:740)
	at com.googlecode.d2j.dex.Dex2jar$1$1.visitEnd(Dex2jar.java:71)
	at com.googlecode.d2j.dex.Dex2Asm.convertClass(Dex2Asm.java:555)
	at com.googlecode.d2j.dex.Dex2Asm.convertClass(Dex2Asm.java:449)
	at com.googlecode.d2j.dex.Dex2Asm.convertDex(Dex2Asm.java:614)
	at com.googlecode.d2j.dex.Dex2jar.doTranslate(Dex2jar.java:153)
	at com.googlecode.d2j.dex.Dex2jar.to(Dex2jar.java:253)
	at com.googlecode.dex2jar.tools.Dex2jarCmd.doCommandLine(Dex2jarCmd.java:103)
	at com.googlecode.dex2jar.tools.BaseCmd.doMain(BaseCmd.java:297)
	at com.googlecode.dex2jar.tools.Dex2jarCmd.main(Dex2jarCmd.java:16)
ASM fail to generate .class file: iko/oxf
java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 0
	at org.objectweb.asm.Frame.getConcreteOutputType(Frame.java:1140)
	at org.objectweb.asm.Frame.merge(Frame.java:1185)
	at org.objectweb.asm.CurrentFrame.execute(CurrentFrame.java:53)
	at org.objectweb.asm.MethodWriter.visitVarInsn(MethodWriter.java:927)
	at org.objectweb.asm.ClassReader.readCode(ClassReader.java:2409)
	at org.objectweb.asm.ClassReader.readMethod(ClassReader.java:1514)
	at org.objectweb.asm.ClassReader.accept(ClassReader.java:744)
	at org.objectweb.asm.ClassWriter.replaceAsmInstructions(ClassWriter.java:777)
	at org.objectweb.asm.ClassWriter.toByteArray(ClassWriter.java:740)
	at com.googlecode.d2j.dex.Dex2jar$1$1.visitEnd(Dex2jar.java:71)
	at com.googlecode.d2j.dex.Dex2Asm.convertClass(Dex2Asm.java:555)
	at com.googlecode.d2j.dex.Dex2Asm.convertClass(Dex2Asm.java:449)
	at com.googlecode.d2j.dex.Dex2Asm.convertDex(Dex2Asm.java:614)
	at com.googlecode.d2j.dex.Dex2jar.doTranslate(Dex2jar.java:153)
	at com.googlecode.d2j.dex.Dex2jar.to(Dex2jar.java:253)
	at com.googlecode.dex2jar.tools.Dex2jarCmd.doCommandLine(Dex2jarCmd.java:103)
	at com.googlecode.dex2jar.tools.BaseCmd.doMain(BaseCmd.java:297)
	at com.googlecode.dex2jar.tools.Dex2jarCmd.main(Dex2jarCmd.java:16)
Detail Error Information in File ./app-error.zip

app-error.zip

will send apk to email

[ThexXTURBOXx]

Thank you very much, I have also received your email with the APK. I will take a look at it soon

[Rabbit0w0]

This issue is basically caused by problems calculating frames. We can simply changes the flags passed to ClassWriter.
We convert the dex to jar files not for running on Hotspot JVM (for sure), so frames aren't of necessity. Disabling the COMPUTE_FRAMES flag is ok to fix this.
I think the dex2jar has an existing config system. You just need to disable the corresponding flag.