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https://issues.apache.org/jira/browse/WW-4310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15833879#comment-15833879
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Tran Anh Tung commented on WW-4310:
-----------------------------------
Thank you for your recommend.
We changed web.xml and source code as your comment.
But problem still happens sometime as we restart Webshpere Application Server.
Please provider us somehow to trace how object transform from web-from data to
action data.
> All form submission failed due to ognl.OgnlException: target is null for
> setProperty
> ------------------------------------------------------------------------------------
>
> Key: WW-4310
> URL: https://issues.apache.org/jira/browse/WW-4310
> Project: Struts 2
> Issue Type: Bug
> Components: Core Interceptors, Expression Language, Integration
> Affects Versions: 2.3.15.1
> Environment: IBM AIX 6.1.0.0
> Websphere Application server 7.0.0.21
> Websphere Portal server 7.0.0.2
> Reporter: chenlin
> Fix For: Future
>
>
> Hi Lukasz Lenart ,
> We are using struts-portlet framework in Websphere Portal server clustering (
> 1 Deploy Manager and 4 Portal servers instances) in production.
> Currently there is one issue happen in one of 4 servers randomly. The
> exception is showing login form in set Property is null in one server, but at
> that time other 3 servers are working fine. This issue can happen in any one
> of 4 servers in our production environment. We have also raised few PMR to
> IBM team for this issue. But IBM said it is not caused by them. We need
> your help to check if any possible way to cause this issue in struts.
> If possible, pls share us your avaliable timing and contact, we would like to
> have a call with you and IBM support to identify root cause.
>
> ===IBM response=============
> When I refer the past PMR ( 18484,000,834) we shared on all the findings and
> waiting for your Application team feedback, as such I don't think any
> further action pending on IBM Support end. do check with Application team
> and can we ask Application team not using
> the code what Application team using is not an IBM API / service code "
>
> com.opensymphony.xwork2.util.logging.commons.CommonsLogger" , good to
> check with Application team to discuss with respective vender.
>
> The above error code from strut's application code, check with Application
> support and ask them to explore further.
> As I hope we all are in same page now, as PMR 20364,000,834 & PMR
> 18184,000,834 - findings Pointing same struts2 loging function, even
> application team explore why they enabled this log ? ,how this impacted the
> Application Interface page with user login error.
> =====Error Log========
> [3/18/14 1:58:12:142 GMT+08:00] 00000062 OgnlValueStac W
> com.opensymphony.xwork2.util.logging.commons.CommonsLogger warn Error setting
> expression 'loginForm.userId' with value '[Ljava.lang.String;@1560156'
> ognl.OgnlException: target is null for
> setProperty(null, "userId", [Ljava.lang.String;@1560156)
> at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2326)
> at ognl.ASTProperty.setValueBody(ASTProperty.java:127)
> at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)
> at ognl.SimpleNode.setValue(SimpleNode.java:301)
> at ognl.ASTChain.setValueBody(ASTChain.java:227)
> at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)
> at ognl.SimpleNode.setValue(SimpleNode.java:301)
> at ognl.Ognl.setValue(Ognl.java:737)
> at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:234)
> at
> com.opensymphony.xwork2.ognl.OgnlValueStack.trySetValue(OgnlValueStack.java:183)
> at
> com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:170)
> at
> com.opensymphony.xwork2.ognl.OgnlValueStack.setParameter(OgnlValueStack.java:148)
> at
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:318)
> at
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:231)
> at
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
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