Details
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Bug
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Resolution: Done
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Major
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jboss-el-api_3.0_spec-1.0.2.Final
Description
When a lambda expression is exited with an exception, its variables are left on stack and cannot be removed from it without hacks. My usecase is a customly defined function that uses exceptions as means of non-local exit, but the bug triggers even without custom functions, as demonstrated below.
Test case:
ELProcessor processor = new ELProcessor ();
processor.defineBean ("x", null);
try {
processor.eval ("(x -> x.bug ()) ('bug')");
}
catch (RuntimeException exception) {
// This is expected, there is no method bug() on strings.
}
processor.eval ("x"); // This must evaluate to null, but instead evaluates to "bug".
Proposed fix will be attached as a short patch against 'javax/el/LambdaExpression.java'.
