[JBoss JIRA] Created: (JASSIST-82) FieldAccess.getField() throws RuntimeException: javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo
3:56 a.m.
FieldAccess.getField() throws RuntimeException: javassist.bytecode.ClassInfo cannot be
cast to javassist.bytecode.FieldrefInfo
------------------------------------------------------------------------------------------------------------------------------
Key: JASSIST-82
URL: https://jira.jboss.org/jira/browse/JASSIST-82
Project: Javassist
Issue Type: Bug
Affects Versions: 3.10.0.GA
Reporter: Martin Burger
Assignee: Shigeru Chiba
My code calls javassist.expr.FieldAccess.getField() on an instrumented class. This method
call fails with a RuntimeException: javassist.bytecode.ClassInfo cannot be cast to
javassist.bytecode.FieldrefInfo:
java.lang.ClassCastException: javassist.bytecode.ClassInfo cannot be cast to
javassist.bytecode.FieldrefInfo
at javassist.bytecode.ConstPool.getFieldrefClassName(ConstPool.java:258)
at javassist.expr.FieldAccess.getClassName(FieldAccess.java:97)
at javassist.expr.FieldAccess.getCtClass(FieldAccess.java:89)
at javassist.expr.FieldAccess.getField(FieldAccess.java:112)
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10:29 a.m.
New subject: [JBoss JIRA] Commented: (JASSIST-82) FieldAccess.getField() throws RuntimeException: javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo
[
https://jira.jboss.org/jira/browse/JASSIST-82?page=com.atlassian.jira.plu...
]
Shigeru Chiba commented on JASSIST-82:
--------------------------------------
Since getField() usually works fine, I need an exact test case that produces the above
bug.
Could you show me the class file of the target (instrumented) class and the source of the
program that instrumented the target class?
Thank you!
FieldAccess.getField() throws RuntimeException:
javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo
------------------------------------------------------------------------------------------------------------------------------
Key: JASSIST-82
URL: https://jira.jboss.org/jira/browse/JASSIST-82
Project: Javassist
Issue Type: Bug
Affects Versions: 3.10.0.GA
Reporter: Martin Burger
Assignee: Shigeru Chiba
My code calls javassist.expr.FieldAccess.getField() on an instrumented class. This method
call fails with a RuntimeException: javassist.bytecode.ClassInfo cannot be cast to
javassist.bytecode.FieldrefInfo:
java.lang.ClassCastException: javassist.bytecode.ClassInfo cannot be cast to
javassist.bytecode.FieldrefInfo
at javassist.bytecode.ConstPool.getFieldrefClassName(ConstPool.java:258)
at javassist.expr.FieldAccess.getClassName(FieldAccess.java:97)
at javassist.expr.FieldAccess.getCtClass(FieldAccess.java:89)
at javassist.expr.FieldAccess.getField(FieldAccess.java:112)
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12:33 a.m.
New subject: [JBoss JIRA] Commented: (JASSIST-82) FieldAccess.getField() throws RuntimeException: javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo
[
https://jira.jboss.org/jira/browse/JASSIST-82?page=com.atlassian.jira.plu...
]
Shigeru Chiba commented on JASSIST-82:
--------------------------------------
I guess you called getFiled() after calling replace() on the same FieldAccess object.
Since replace() modifies the bytecode, getField() does not work any more. This is a
specification for performance.
FieldAccess.getField() throws RuntimeException:
javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo
------------------------------------------------------------------------------------------------------------------------------
Key: JASSIST-82
URL: https://jira.jboss.org/jira/browse/JASSIST-82
Project: Javassist
Issue Type: Bug
Affects Versions: 3.10.0.GA
Reporter: Martin Burger
Assignee: Shigeru Chiba
My code calls javassist.expr.FieldAccess.getField() on an instrumented class. This method
call fails with a RuntimeException: javassist.bytecode.ClassInfo cannot be cast to
javassist.bytecode.FieldrefInfo:
java.lang.ClassCastException: javassist.bytecode.ClassInfo cannot be cast to
javassist.bytecode.FieldrefInfo
at javassist.bytecode.ConstPool.getFieldrefClassName(ConstPool.java:258)
at javassist.expr.FieldAccess.getClassName(FieldAccess.java:97)
at javassist.expr.FieldAccess.getCtClass(FieldAccess.java:89)
at javassist.expr.FieldAccess.getField(FieldAccess.java:112)
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2:14 a.m.
New subject: [JBoss JIRA] Commented: (JASSIST-82) FieldAccess.getField() throws RuntimeException: javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo
[
https://jira.jboss.org/jira/browse/JASSIST-82?page=com.atlassian.jira.plu...
]
Martin Burger commented on JASSIST-82:
--------------------------------------
I am creating test cases for JASSIST-82, JASSIST-80, and JASSIST-79. Unfortunately, there
is no single Java file that can reproduce the failures. However, I am trying to create a
minimal test case, or, at least much smaller than the original setup (hundreds of
classes).
I hope I will finish this work today.
FieldAccess.getField() throws RuntimeException:
javassist.bytecode.ClassInfo cannot be cast to javassist.bytecode.FieldrefInfo
------------------------------------------------------------------------------------------------------------------------------
Key: JASSIST-82
URL: https://jira.jboss.org/jira/browse/JASSIST-82
Project: Javassist
Issue Type: Bug
Affects Versions: 3.10.0.GA
Reporter: Martin Burger
Assignee: Shigeru Chiba
My code calls javassist.expr.FieldAccess.getField() on an instrumented class. This method
call fails with a RuntimeException: javassist.bytecode.ClassInfo cannot be cast to
javassist.bytecode.FieldrefInfo:
java.lang.ClassCastException: javassist.bytecode.ClassInfo cannot be cast to
javassist.bytecode.FieldrefInfo
at javassist.bytecode.ConstPool.getFieldrefClassName(ConstPool.java:258)
at javassist.expr.FieldAccess.getClassName(FieldAccess.java:97)
at javassist.expr.FieldAccess.getCtClass(FieldAccess.java:89)
at javassist.expr.FieldAccess.getField(FieldAccess.java:112)
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5730
days inactive
5731
days old
3 comments
2 participants
participants (2)
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Martin Burger (JIRA) -
Shigeru Chiba (JIRA)