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Type:
Bug
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 2.3.15.1
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Fix Version/s: 2.3.20
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Component/s: Expression Language
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Labels:None
in class com.opensymphony.xwork2.ognl.OgnlUtil, code :
tree = expressions.get(expression); if (tree == null) { tree = Ognl.parseExpression(expression); expressions.putIfAbsent(expression, tree); }
every parameter in the request cached in field expressions which is an instances of ConcurrentMap<String, Object>, use parameterName as key. so i construct huge different parameters that has different name (like "abc[123], abc[124]" ), they all cached in expressions, this cause outofmemory error, and let map acted like a list .