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https://issues.apache.org/jira/browse/BCEL-303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17507717#comment-17507717
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Mark Roberts commented on BCEL-303:
-----------------------------------
Fixed with https://github.com/apache/commons-bcel/pull/117
> AssertionViolatedException in Pass 3A Verification of invoke instructions
> -------------------------------------------------------------------------
>
> Key: BCEL-303
> URL: https://issues.apache.org/jira/browse/BCEL-303
> Project: Commons BCEL
> Issue Type: Bug
> Components: Verifier
> Affects Versions: 6.2
> Reporter: Rohan Padhye
> Priority: Major
> Attachments: A.class
>
>
> The verifier throws an assertion violation / INTERNAL ERROR in pass 3A when
> verifying a malformed class file.
> As I understand it, the issue is that if class A implements interface B, then
> class A can be pass stage 1 verification even if class B is not resolved.
> However, pass 3A verification of code that invokes a method defined on class
> A assumes that the receiver type and all its interfaces are fully resolved.
> h1. Steps to reproduce:
>
> Save the attached file as "example/A.class" and run:
> java -cp <classpath> org.apache.bcel.verifier.Verifier example.A
>
> The file A.class was generated automatically by the fuzzer JQF
> (https://github.com/rohanpadhye/jqf).
> h2. Expected output:
> VERIFIED_REJECTED
> h2. Observed output:
> JustIce by Enver Haase, (C) 2001-2002.
> <http://bcel.sourceforge.net>
> <http://commons.apache.org/bcel>
>
> Now verifying: example.A
>
> Pass 1:
> VERIFIED_OK
> Passed verification.
>
> Pass 2:
> VERIFIED_OK
> Passed verification.
>
> Exception in thread "main"
> org.apache.bcel.verifier.exc.AssertionViolatedException: INTERNAL ERROR:
> Missing class: java.lang.ClassNotFoundException: Exception while looking for
> class example.I0: java.io.IOException: Couldn't find: example/I0.class
> at
> org.apache.bcel.verifier.statics.Pass3aVerifier$InstOperandConstraintVisitor.visitINVOKEVIRTUAL(Pass3aVerifier.java:1315)
> at org.apache.bcel.generic.INVOKEVIRTUAL.accept(INVOKEVIRTUAL.java:89)
> at
> org.apache.bcel.generic.InstructionHandle.accept(InstructionHandle.java:302)
> at
> org.apache.bcel.verifier.statics.Pass3aVerifier.pass3StaticInstructionOperandsChecks(Pass3aVerifier.java:443)
> at
> org.apache.bcel.verifier.statics.Pass3aVerifier.do_verify(Pass3aVerifier.java:208)
> at org.apache.bcel.verifier.PassVerifier.verify(PassVerifier.java:71)
> at org.apache.bcel.verifier.Verifier.doPass3a(Verifier.java:89)
> at org.apache.bcel.verifier.Verifier.main(Verifier.java:216)
> Caused by: java.lang.ClassNotFoundException: Exception while looking for
> class example.I0: java.io.IOException: Couldn't find: example/I0.class
> at
> org.apache.bcel.util.MemorySensitiveClassPathRepository.loadClass(MemorySensitiveClassPathRepository.java:97)
> at org.apache.bcel.classfile.JavaClass.getInterfaces(JavaClass.java:847)
> at
> org.apache.bcel.verifier.statics.Pass3aVerifier$InstOperandConstraintVisitor.getMethodRecursive(Pass3aVerifier.java:1181)
> at
> org.apache.bcel.verifier.statics.Pass3aVerifier$InstOperandConstraintVisitor.visitINVOKEVIRTUAL(Pass3aVerifier.java:1304)
> ... 7 more
> Caused by: java.io.IOException: Couldn't find: example/I0.class
> at org.apache.bcel.util.ClassPath.getClassFile(ClassPath.java:279)
> at org.apache.bcel.util.ClassPath.getInputStream(ClassPath.java:209)
> at org.apache.bcel.util.ClassPath.getInputStream(ClassPath.java:188)
> at
> org.apache.bcel.util.MemorySensitiveClassPathRepository.loadClass(MemorySensitiveClassPathRepository.java:95)
> ... 10 more
>
>
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