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Type:
Bug
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Resolution: Fixed
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Priority:
Major
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Component/s: core
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Environment:1.424, JDK 7
Noticed when using Folders plugin, but in principle could affect an installation using any plugin which has special ItemGroup implementations.
... hudson.ExpressionFactory2$JexlExpression evaluate
WARNING: Caught exception evaluating: it.parent == app. Reason: java.lang.reflect.InvocationTargetException
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.commons.jexl.util.PropertyExecutor.execute(PropertyExecutor.java:125)
at org.apache.commons.jexl.util.introspection.UberspectImpl$VelGetterImpl.invoke(UberspectImpl.java:314)
at org.apache.commons.jexl.parser.ASTArrayAccess.evaluateExpr(ASTArrayAccess.java:185)
at org.apache.commons.jexl.parser.ASTIdentifier.execute(ASTIdentifier.java:75)
at org.apache.commons.jexl.parser.ASTReference.execute(ASTReference.java:83)
at org.apache.commons.jexl.parser.ASTReference.value(ASTReference.java:57)
at org.apache.commons.jexl.parser.ASTEQNode.value(ASTEQNode.java:71)
at org.apache.commons.jexl.parser.ASTExpression.value(ASTExpression.java:54)
at org.apache.commons.jexl.parser.ASTExpressionExpression.value(ASTExpressionExpression.java:56)
at org.apache.commons.jexl.ExpressionImpl.evaluate(ExpressionImpl.java:80)
at hudson.ExpressionFactory2$JexlExpression.evaluate(ExpressionFactory2.java:72)
...
Caused by: java.lang.ClassCastException: <an ItemGroup impl> cannot be cast to jenkins.model.Jenkins
at hudson.model.AbstractItem.getParent(AbstractItem.java)
... 91 more
Apparent cause is the use of @WithBridgeMethods(value=Jenkins.class,castRequired=true) in AbstractItem.getParent. Probable mechanism of bug is that Job/index.jelly evaluates it.parent, JEXL looks for a getParent() method, and picks the overload returning Jenkins rather than the one returning ItemGroup. If the job is in fact in a folder rather than at top level, the cast (generated in bytecode by a Maven plugin) fails.
Might happen to work on JDK 6 due to Class.getMethods returning methods in bytecode order, but this is not the case in JDK 7.
Symptom: stack trace in log; probably suppresses "This project is currently disabled" message. "Major" only in that the error can be thrown repeatedly for a wide class of jobs.
- is blocking
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- Resolved
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