bug: `--verify-with-sdk` crashes on Windows due to reserved MS-DOS filenames (aux.dex, con.dex)

[cyberboh]

Bug description

SdkDexVerifier issue I guess

Error logs

YouTube 21.18.163:

INFO: Wrote 9 dex files to C:\Users\DELL\AppData\Local\Temp\patcher\patched\dex 
INFO: Verifying 9 DEX files with dexdump/d8 
INFO: Patching result saved to C:\Morphe\temp_result_YouTube.json
INFO: Purging temporary files 
INFO: Failed to purge resource cache directory 
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
	at java.base/java.util.Arrays.copyOfRangeByte(Arrays.java:3863)
	at java.base/java.util.Arrays.copyOfRange(Arrays.java:3854)
	at java.base/java.lang.String.<init>(String.java:4790)
	at java.base/java.lang.StringBuffer.toString(StringBuffer.java:739)
	at java.base/java.io.StringWriter.toString(StringWriter.java:220)
	at kotlin.io.TextStreamsKt.readText(ReadWrite.kt:122)
	at app.morphe.patcher.dex.SdkDexVerifier.exec(DexVerifier.kt:412)
	at app.morphe.patcher.dex.SdkDexVerifier.verifyWithDexdump(DexVerifier.kt:328)
	at app.morphe.patcher.dex.SdkDexVerifier.verifyDexFile(DexVerifier.kt:117)
	at app.morphe.patcher.dex.SdkDexVerifier.verifyDexDirectory(DexVerifier.kt:134)
	at app.morphe.patcher.patch.BytecodePatchContext.compileFull(BytecodePatchContext.kt:282)
	at app.morphe.patcher.patch.BytecodePatchContext.get(BytecodePatchContext.kt:262)
	at app.morphe.patcher.Patcher.get(Patcher.kt:174)
	at app.morphe.cli.command.PatchCommand.call(PatchCommand.kt:738)
	at app.morphe.cli.command.PatchCommand.call(PatchCommand.kt:51)
	at picocli.CommandLine.executeUserObject(CommandLine.java:2031)
	at picocli.CommandLine.access$1500(CommandLine.java:148)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2469)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2461)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2423)
	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
	at picocli.CommandLine$RunLast.execute(CommandLine.java:2425)
	at picocli.CommandLine.execute(CommandLine.java:2174)
	at app.morphe.MorpheLauncherKt.main(MorpheLauncher.kt:23)


YT Music 9.17.51:

INFO: Wrote 8 dex files to C:\Users\DELL\AppData\Local\Temp\patcher\patched\dex 
INFO: Verifying 8 DEX files with dexdump/d8 
SEVERE: An unexpected error occurred: d8 failed on classes5.dex (exit code 1):
Error in C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\con.dex:
java.nio.file.FileSystemException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\con.dex: Incorrect function
Error in C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\aux.dex:
java.nio.file.NoSuchFileException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\aux.dex
Error in C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex:
java.nio.file.NoSuchFileException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex
Compilation failed with an internal error.
Exception in thread "main" java.lang.RuntimeException: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex
	at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:126)
	at com.android.tools.r8.D8.main(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:5)
Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex
	at Version.fakeStackEntry(Version_8.2.2-dev.java:0)
	at com.android.tools.r8.M.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:5)
	at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:81)
	at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:32)
	at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:31)
	at com.android.tools.r8.utils.R0.b(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:2)
	at com.android.tools.r8.D8.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c55

... [truncated 3458 chars] ...

tools.r8.D8.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:24)
		at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:113)
		at com.android.tools.r8.D8.main(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:5)
	Caused by: com.android.tools.r8.utils.b: java.nio.file.NoSuchFileException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex
		at com.android.tools.r8.utils.O2.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:21)
		at com.android.tools.r8.utils.O2.error(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:1)
		at com.android.tools.r8.utils.I0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:23)
		at com.android.tools.r8.DexFilePerClassFileConsumer$DirectoryConsumer.accept(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:2)
		at com.android.tools.r8.dex.k.b(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:52)
		at com.android.tools.r8.utils.d3.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:4)
		at com.android.tools.r8.utils.d3.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:40)
		at java.base/java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1456)
		at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387)
		at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312)
		at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843)
		at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808)
		at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188)
	Caused by: [CIRCULAR REFERENCE: java.nio.file.NoSuchFileException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex]
 
app.morphe.patcher.dex.DexVerificationException: d8 failed on classes5.dex (exit code 1):
Error in C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\con.dex:
java.nio.file.FileSystemException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\con.dex: Incorrect function
Error in C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\aux.dex:
java.nio.file.NoSuchFileException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\aux.dex
Error in C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex:
java.nio.file.NoSuchFileException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex
Compilation failed with an internal error.
Exception in thread "main" java.lang.RuntimeException: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex
	at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:126)
	at com.android.tools.r8.D8.main(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:5)
Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex
	at Version.fakeStackEntry(Version_8.2.2-dev.java:0)
	at com.android.tools.r8.M.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:5)
	at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:81)
	at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:32)
	at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:31)
	at com.android.tools.r8.utils.R0.b(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:2)
	at com.android.tools.r8.D8.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c55

... [truncated 3458 chars] ...

tools.r8.D8.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:24)
		at com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:113)
		at com.android.tools.r8.D8.main(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:5)
	Caused by: com.android.tools.r8.utils.b: java.nio.file.NoSuchFileException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex
		at com.android.tools.r8.utils.O2.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:21)
		at com.android.tools.r8.utils.O2.error(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:1)
		at com.android.tools.r8.utils.I0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:23)
		at com.android.tools.r8.DexFilePerClassFileConsumer$DirectoryConsumer.accept(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:2)
		at com.android.tools.r8.dex.k.b(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:52)
		at com.android.tools.r8.utils.d3.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:4)
		at com.android.tools.r8.utils.d3.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:40)
		at java.base/java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1456)
		at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387)
		at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312)
		at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843)
		at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808)
		at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188)
	Caused by: [CIRCULAR REFERENCE: java.nio.file.NoSuchFileException: C:\Users\DELL\AppData\Local\Temp\d8-verify-3176826548818970237.tmp\prn.dex]

	at app.morphe.patcher.dex.SdkDexVerifier.exec(DexVerifier.kt:422)
	at app.morphe.patcher.dex.SdkDexVerifier.verifyWithD8(DexVerifier.kt:344)
	at app.morphe.patcher.dex.SdkDexVerifier.verifyDexFile(DexVerifier.kt:118)
	at app.morphe.patcher.dex.SdkDexVerifier.verifyDexDirectory(DexVerifier.kt:134)
	at app.morphe.patcher.patch.BytecodePatchContext.compileFull(BytecodePatchContext.kt:282)
	at app.morphe.patcher.patch.BytecodePatchContext.get(BytecodePatchContext.kt:262)
	at app.morphe.patcher.Patcher.get(Patcher.kt:174)
	at app.morphe.cli.command.PatchCommand.call(PatchCommand.kt:738)
	at app.morphe.cli.command.PatchCommand.call(PatchCommand.kt:51)
	at picocli.CommandLine.executeUserObject(CommandLine.java:2031)
	at picocli.CommandLine.access$1500(CommandLine.java:148)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2469)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2461)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2423)
	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
	at picocli.CommandLine$RunLast.execute(CommandLine.java:2425)
	at picocli.CommandLine.execute(CommandLine.java:2174)
	at app.morphe.MorpheLauncherKt.main(MorpheLauncher.kt:23)


Reddit 2026.18.0:

INFO: Wrote 13 dex files to C:\Users\DELL\AppData\Local\Temp\patcher\patched\dex 
INFO: Verifying 13 DEX files with dexdump/d8 
INFO: Patching result saved to C:\Morphe\temp_result_Reddit.json 
INFO: Purging temporary files 
INFO: Purged resource cache directory 
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
	at java.base/java.util.Arrays.copyOfRangeByte(Arrays.java:3863)
	at java.base/java.util.Arrays.copyOfRange(Arrays.java:3854)
	at java.base/java.lang.String.<init>(String.java:4790)
	at java.base/java.lang.StringBuffer.toString(StringBuffer.java:739)
	at java.base/java.io.StringWriter.toString(StringWriter.java:220)
	at kotlin.io.TextStreamsKt.readText(ReadWrite.kt:122)
	at app.morphe.patcher.dex.SdkDexVerifier.exec(DexVerifier.kt:412)
	at app.morphe.patcher.dex.SdkDexVerifier.verifyWithDexdump(DexVerifier.kt:328)
	at app.morphe.patcher.dex.SdkDexVerifier.verifyDexFile(DexVerifier.kt:117)
	at app.morphe.patcher.dex.SdkDexVerifier.verifyDexDirectory(DexVerifier.kt:134)
	at app.morphe.patcher.patch.BytecodePatchContext.compileFull(BytecodePatchContext.kt:282)
	at app.morphe.patcher.patch.BytecodePatchContext.get(BytecodePatchContext.kt:262)
	at app.morphe.patcher.Patcher.get(Patcher.kt:174)
	at app.morphe.cli.command.PatchCommand.call(PatchCommand.kt:738)
	at app.morphe.cli.command.PatchCommand.call(PatchCommand.kt:51)
	at picocli.CommandLine.executeUserObject(CommandLine.java:2031)
	at picocli.CommandLine.access$1500(CommandLine.java:148)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2469)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2461)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2423)
	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
	at picocli.CommandLine$RunLast.execute(CommandLine.java:2425)
	at picocli.CommandLine.execute(CommandLine.java:2174)
	at app.morphe.MorpheLauncherKt.main(MorpheLauncher.kt:23)

Solution

No response

Additional context

No response

Acknowledgements

• I have checked all open and closed bug reports and this is not a duplicate.
• I have chosen an appropriate title.

[LisoUseInAIKyrios]

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space

You're out of memory. Use -Xmx command such as java -Xmx1024m -jar morphe-cli.jar

[cyberboh]

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space

You're out of memory. Use -Xmx command such as java -Xmx1024m -jar morphe-cli.jar

What is default value java heap size of Morphe cli? Without --verify-with-sdk argh, patching succeded anyway.

[LisoUseInAIKyrios]

Default heap is a java thing and not specific to Morphe.

Default heap size depends on the release of Java you are using and OS.

[cyberboh]

Default heap is a java thing and not specific to Morphe.

Default heap size depends on the release of Java you are using and OS.

Thank you, works after add 2048 at -Xmx

For other issue, it's actually a clash with good ol' Windows legacy constraints. Since the target apps are heavily obfuscated, their class names eventually generate combinations like aux, con, and prn. When d8 tries to process or dump these specific .dex files into the Windows Temp directory, Windows completely blocks the operation because those are reserved MS-DOS device names. The verification completely halts on Windows, even though the actual patched APK is perfectly fine.

Maybe we can catch this specific exception and just skip verifying those "cursed" files on Windows? Or at least show a specific warning telling Windows users to disable the SDK verification for highly obfuscated apps.