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https://issues.apache.org/jira/browse/BCEL-308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17507715#comment-17507715
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Mark Roberts commented on BCEL-308:
-----------------------------------
Fixed with https://github.com/apache/commons-bcel/pull/117
> NullPointerException in Verifier Pass 3A
> ----------------------------------------
>
> Key: BCEL-308
> URL: https://issues.apache.org/jira/browse/BCEL-308
> Project: Commons BCEL
> Issue Type: Bug
> Components: Verifier
> Affects Versions: 6.2
> Reporter: Rohan Padhye
> Priority: Major
> Attachments: Hello.class
>
>
> Verifier throws NPE on malformed input instead of reporting verification
> failure.
> h1. Steps to reproduce:
>
> Save the attached file as "Hello.class" and run:
> java -cp <classpath> org.apache.bcel.verifier.Verifier Hello
>
> The file Hello.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: Hello
>
> Pass 1:
> VERIFIED_OK
> Passed verification.
>
> Pass 2:
> VERIFIED_OK
> Passed verification.
>
> Exception in thread "main" java.lang.NullPointerException
> at
> org.apache.bcel.generic.FieldOrMethod.getReferenceType(FieldOrMethod.java:116)
> at
> org.apache.bcel.generic.FieldOrMethod.getLoadClassType(FieldOrMethod.java:133)
> at
> org.apache.bcel.verifier.statics.Pass3aVerifier$InstOperandConstraintVisitor.visitLoadClass(Pass3aVerifier.java:521)
> at org.apache.bcel.generic.INVOKESPECIAL.accept(INVOKESPECIAL.java:86)
> 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)
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