JSP21ExpressionEvaluatorProxy is causing an exception in Tomcat 6.0 if compiled
using JDK 5.0
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Key: PLUTO-451
URL: https://issues.apache.org/jira/browse/PLUTO-451
Project: Pluto
Issue Type: Bug
Components: portlet container taglibs
Affects Versions: 1.1.5, 1.1-286-COMPATIBILITY, 1.1-286-trunk-merge
Environment: JDK 5.0, Tomcat 6.0
Reporter: Benjamin Gould
Fix For: 1.1.5, 1.1-286-COMPATIBILITY, 1.1-286-trunk-merge
Attachments: taglib-problem.diff
JDK 5.0 changed the signature of Method.invoke() to using varargs for the
second argument. The ExpressionEvaluatorProxy for JSP 2.1 passes null, which
presumably gets coerced into new Object[] { null } by the compiler. This causes
an exception because the runtime arguments for
JspApplicationContexts.getExpressionFactory() do not match its signature.
Passing an empty array Object[] {} to Method.invoke() resolves this ambiguity.
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