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Lukasz Lenart updated WW-5006: ------------------------------ Fix Version/s: 2.6 2.5.21 > NullPointerException in ProxyUtil class when accessing static member > -------------------------------------------------------------------- > > Key: WW-5006 > URL: https://issues.apache.org/jira/browse/WW-5006 > Project: Struts 2 > Issue Type: Bug > Components: Value Stack > Affects Versions: 2.5.20 > Reporter: Sebastian Götz > Priority: Major > Fix For: 2.5.21, 2.6 > > > In some JSP we access static field (constants) of an interface. The interface > has scope public and and the fields are public static final. > When accessing the value of such a field the ValueStack throws a > NullPointerException here (com.opensymphony.xwork2.util.ProxyUtil), because > there is actually not object (parameter holds null) when accessing a static > member: > {code:java} > /** > * Check whether the given object is a proxy. > * @param object the object to check > */ > public static boolean isProxy(Object object) { > Class<?> clazz = object.getClass(); > Boolean flag = isProxyCache.get(clazz); > if (flag != null) { > return flag; > } > boolean isProxy = isSpringAopProxy(object); > isProxyCache.put(clazz, isProxy); > return isProxy; > } > {code} > > Support to access static members is switched on via struts constant > {{<constant name="struts.ognl.allowStaticMethodAccess" value="true" />}} -- This message was sent by Atlassian JIRA (v7.6.3#76005)