'java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0' When performing instrumentation by soot.

[AlphaDora]

Please examine each of the following points so that we can help you as soon and best as possible.

Describe the bug After instrumenting HBase(2.4.2) and generating .class files, I met this issues: [Thread-44] ERROR heros.solver.CountingThreadPoolExecutor - Worker thread execution failed: Index 0 out of bounds for length 0 java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at org.objectweb.asm.MethodWriter.visitParameterAnnotation(MethodWriter.java:703) at soot.AbstractASMBackend.generateMethods(AbstractASMBackend.java:347) at soot.AbstractASMBackend.generateByteCode(AbstractASMBackend.java:277) at soot.AbstractASMBackend.generateClassFile(AbstractASMBackend.java:226) at soot.PackManager.writeClass(PackManager.java:1124) at soot.PackManager.lambda$writeOutput$1(PackManager.java:705) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834)

Input file I utilized soot-4.3.0 and download Hbase hbase-2.4.2-bin.tar.gz. My source code is too large to upload. If necessary, I will upload my analyzer to support reproducing.

To reproduce Steps to reproduce the behavior: Run my scripts.

Expected behavior According to the log info, the instrumentation process finished and the error occurred during generating .class files.

[AlphaDora]

Hi @Mlecherf , do you mean I can upload my source code via Mediafire?

[StevenArzt]

Can you provide a minimum working example? If you have a large analyzer, we don't have the time to debug into that. Please provide a small program thta is just enough to reproduce the problem.

[AlphaDora]

Hi@StevenArzt , sorry for my late reply. I didn't encounter this issue again, but I encountered another strange issue now. After I used soot to instrument hbase, the exported binary file was slightly different from the source file, which caused an error. The original binary code in MasterRpcServices.class is as follows:

15: invokestatic #161 // InterfaceMethod org/apache/hadoop/hbase/master/LoadBalancer.isMasterCanHostUserRegions:(Lorg/apache/hadoop/conf/Configuration;)Z

After soot regeneration, this line of bytecode becomes:

16: invokestatic #1920 // Method org/apache/hadoop/hbase/master/LoadBalancer.isMasterCanHostUserRegions:(Lorg/apache/hadoop/conf/Configuration;)Z

When I start hbase master, an error will be reported: java.lang.IncompatibleClassChangeError: Method org.apache.hadoop.hbase.master.LoadBalancer.isMasterCanHostUserRegions(Lorg/apache/hadoop/conf/Configuration;)Z must be InterfaceMethodref constant at org.apache.hadoop.hbase.master.MasterRpcServices.createRpcServer(MasterRpcServices.java)

That is, this method should be an InterfaceMethod instead of a Method I'm currently using soot-4.3.0 and my soot options are as followed: // General Options "-w",

                // Input Options
                "-cp", classPath,
                "-pp",
                "-allow-phantom-refs",
                "-no-bodies-for-excluded",

                // Output Options
                "-f", "c",

                // Phase Options
                "-p", "cg", "off"

I'm not explicitly calling asm to modify the binary, so is this because I've turned on some optimization switch incorrectly? How can I fix this error? If you need me to upload my analyzer, please let me know. Thank you very much for your help.

[AlphaDora]

Here are the class files before and after analysis. MasterRpcServices.zip