Sergey Gromov created WW-4350:
---------------------------------
Summary: OgnlValueStack causes race condition
Key: WW-4350
URL: https://issues.apache.org/jira/browse/WW-4350
Project: Struts 2
Issue Type: Bug
Components: Core Actions, Value Stack
Affects Versions: 2.3.16.1
Reporter: Sergey Gromov
_com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.callMethod_ is not
thread safe because of unsynchronized reads and writes to HashMap:
{code}
private static Map invalidMethods = new HashMap();
...
public Object callMethod(Map context, Object target, String name, Object[]
objects) throws MethodFailedException {
...
if ((argTypes == null) || !invalidMethods.containsKey(mc)) {
...
invalidMethods.put(mc, Boolean.TRUE);
...
}
...
}
{code}
Propose to use _ConcurrentHashMap_
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