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Posted to issues@commons.apache.org by "Katherine Hough (Jira)" <ji...@apache.org> on 2023/06/02 21:23:00 UTC
[jira] [Created] (BCEL-369) org.apache.bcel.verifier.exc.AssertionViolatedException from method return in subroutine
Katherine Hough created BCEL-369:
------------------------------------
Summary: org.apache.bcel.verifier.exc.AssertionViolatedException from method return in subroutine
Key: BCEL-369
URL: https://issues.apache.org/jira/browse/BCEL-369
Project: Commons BCEL
Issue Type: Bug
Components: Verifier
Affects Versions: 6.7.0, 6.8.0
Reporter: Katherine Hough
Attachments: Test.class
Verifier pass 3B fails due to a method return in a subroutine.
There is a comment in the associated code indicating that you are likely already aware of this issue:
"// TODO: This is buggy, we check only the top-level return instructions this way.
// Maybe some maniac returns from a method when in a subroutine?"
The attached class file is what javac for the Java HotSpot SE Development Kit build 1.4.2_19-b04 produced for the program:
{code:java}
class Test {
public Test(int i) {
try {
i++;
} finally {
if(i == 0) {
return;
}
int u = 7;
u += 9;
}
i++;
}
}{code}
Input: See attached file.
Output:
{code:java}
Apache Commons BCEL
https://commons.apache.org/bcel
Now verifying: Test
Pass 1:
VERIFIED_OK
Passed verification.
Pass 2:
VERIFIED_OK
Passed verification.
Pass 3a, method number 0 ['public void <init>(int arg1)']:
VERIFIED_OK
Passed verification.
Exception in thread "main" org.apache.bcel.verifier.exc.AssertionViolatedException: INTERNAL ERROR: Some RuntimeException occurred while verify()ing class 'Test', method 'public void <init>(int arg1)'. Original RuntimeException's stack trace:
---
org.apache.bcel.verifier.exc.AssertionViolatedException: INTERNAL ERROR: outFrame not set! This:
24: return [InstructionContext]
ExecutionChain: 24: return [InstructionContext]
OutFrames: '{ 7: jsr -> 19 [InstructionContext]=Local Variables:
0: Test
1: int
2: <unknown object>
3: <return address targeting 10: goto[167](3) -> 34>
4: <unknown object>
OperandStack:
Slots used: 0 MaxStack: 1.
, 14: jsr -> 19 [InstructionContext]=Local Variables:
0: Test
1: int
2: java.lang.Throwable
3: <return address targeting 17: aload_2[44](1)>
4: <unknown object>
OperandStack:
Slots used: 0 MaxStack: 1.
}'.
at org.apache.bcel.verifier.structurals.ControlFlowGraph$InstructionContextImpl.getOutFrame(ControlFlowGraph.java:285)
at org.apache.bcel.verifier.structurals.Pass3bVerifier.circulationPump(Pass3bVerifier.java:275)
at org.apache.bcel.verifier.structurals.Pass3bVerifier.do_verify(Pass3bVerifier.java:386)
at org.apache.bcel.verifier.PassVerifier.verify(PassVerifier.java:98)
at org.apache.bcel.verifier.Verifier.doPass3b(Verifier.java:166)
at org.apache.bcel.verifier.Verifier.verifyType(Verifier.java:90)
at org.apache.bcel.verifier.Verifier.main(Verifier.java:69)
---
at org.apache.bcel.verifier.structurals.Pass3bVerifier.do_verify(Pass3bVerifier.java:398)
at org.apache.bcel.verifier.PassVerifier.verify(PassVerifier.java:98)
at org.apache.bcel.verifier.Verifier.doPass3b(Verifier.java:166)
at org.apache.bcel.verifier.Verifier.verifyType(Verifier.java:90)
at org.apache.bcel.verifier.Verifier.main(Verifier.java:69)
Caused by: org.apache.bcel.verifier.exc.AssertionViolatedException: INTERNAL ERROR: outFrame not set! This:
24: return [InstructionContext]
ExecutionChain: 24: return [InstructionContext]
OutFrames: '{ 7: jsr -> 19 [InstructionContext]=Local Variables:
0: Test
1: int
2: <unknown object>
3: <return address targeting 10: goto[167](3) -> 34>
4: <unknown object>
OperandStack:
Slots used: 0 MaxStack: 1.
, 14: jsr -> 19 [InstructionContext]=Local Variables:
0: Test
1: int
2: java.lang.Throwable
3: <return address targeting 17: aload_2[44](1)>
4: <unknown object>
OperandStack:
Slots used: 0 MaxStack: 1.
}'.
at org.apache.bcel.verifier.structurals.ControlFlowGraph$InstructionContextImpl.getOutFrame(ControlFlowGraph.java:285)
at org.apache.bcel.verifier.structurals.Pass3bVerifier.circulationPump(Pass3bVerifier.java:275)
at org.apache.bcel.verifier.structurals.Pass3bVerifier.do_verify(Pass3bVerifier.java:386)
... 4 more
{code}
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