Re: [S2] DEBUG NPE
Hi Ken, I encountered the same problem. Did you find the solution yet? Thanks Doug - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
[S2] DEBUG NPE
I have created a template which utilizes parameters that are passed into
it to generate HTML conditionally based on those parameters. For
example:
s:component theme=scaTheme templateDir=template
template=Header.jsp
s:param name=titleKey
value=%{'title.appNpc'} /
s:param name=helpPage
value=%{'Non_Premier_Contract_Home_Page.htm'} /
/s:component
However, I do not wish to require that all the parameters be required.
For example, it would be ok if the helpPage parameter was not
specified. At runtime, everything works fine if I do not specify the
helpPage parameter. However if I place my logging level at DEBUG, I
my log is cluttered with NPEs like the one below. I cannot seem to find
any kind of syntax to reference the parameter to even test if it is null
without generating this NPE in DEBUG. Does anyone know if it is
possible to avoid these NPEs? I make heavy use of templates with
optional parameters and it is really cluttering up the logs when trying
to debug. Am I doing something wrong? Should this maybe be readdressed
in the Struts code base? I understand why the DEBUG statement is
logged. Just not sure since it is a DEBUG statement, if the stack trace
is warranted.
Thanks in advance!
2008-03-14 14:30:14,364 DEBUG (http-127.0.0.1-8080-2:)
[com.opensymphony.xwork2.util.DefaultObjectTypeDeterminer] Error while
retrieving generic property class for property=parameters
java.lang.NullPointerException
at
com.opensymphony.xwork2.util.GenericsObjectTypeDeterminer.getClass(Gener
icsObjectTypeDeterminer.java:222)
at
com.opensymphony.xwork2.util.GenericsObjectTypeDeterminer.getKeyClass(Ge
nericsObjectTypeDeterminer.java:44)
at
com.opensymphony.xwork2.util.XWorkMapPropertyAccessor.getKey(XWorkMapPro
pertyAccessor.java:136)
at
com.opensymphony.xwork2.util.XWorkMapPropertyAccessor.getProperty(XWorkM
apPropertyAccessor.java:68)
at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1643)
at ognl.ASTProperty.getValueBody(ASTProperty.java:92)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.ASTChain.getValueBody(ASTChain.java:109)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.ASTNotEq.getValueBody(ASTNotEq.java:49)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.ASTAnd.getValueBody(ASTAnd.java:56)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.Ognl.getValue(Ognl.java:333)
at
com.opensymphony.xwork2.util.OgnlUtil.getValue(OgnlUtil.java:194)
at
com.opensymphony.xwork2.util.OgnlValueStack.findValue(OgnlValueStack.jav
a:238)
at
org.apache.struts2.components.Component.findValue(Component.java:322)
at org.apache.struts2.components.If.start(If.java:85)
at
org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTag
Support.java:54)
at
org.apache.jsp.template.scaTheme.Header_jsp._jspx_meth_s_005fif_005f0(He
ader_jsp.java:273)
-
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For additional commands, e-mail: [EMAIL PROTECTED]
[S2] DEBUG NPE
I have created a template which utilizes parameters that are passed into
it to generate HTML conditionally based on those parameters. For
example:
s:component theme=scaTheme templateDir=template
template=Header.jsp
s:param name=titleKey
value=%{'title.appNpc'} /
s:param name=helpPage
value=%{'Non_Premier_Contract_Home_Page.htm'} /
/s:component
However, I do not wish to require that all the parameters be required.
For example, it would be ok if the helpPage parameter was not
specified. At runtime, everything works fine if I do not specify the
helpPage parameter. However if I place my logging level at DEBUG, I
my log is cluttered with NPEs like the one below. I cannot seem to find
any kind of syntax to reference the parameter to even test if it is null
without generating this NPE in DEBUG. Does anyone know if it is
possible to avoid these NPEs? I make heavy use of templates with
optional parameters and it is really cluttering up the logs when trying
to debug. Am I doing something wrong? Should this maybe be readdressed
in the Struts code base? I understand why the DEBUG statement is
logged. Just not sure since it is a DEBUG statement, if the stack trace
is warranted.
Thanks in advance!
2008-03-14 14:30:14,364 DEBUG (http-127.0.0.1-8080-2:)
[com.opensymphony.xwork2.util.DefaultObjectTypeDeterminer] Error while
retrieving generic property class for property=parameters
java.lang.NullPointerException
at
com.opensymphony.xwork2.util.GenericsObjectTypeDeterminer.getClass(Gener
icsObjectTypeDeterminer.java:222)
at
com.opensymphony.xwork2.util.GenericsObjectTypeDeterminer.getKeyClass(Ge
nericsObjectTypeDeterminer.java:44)
at
com.opensymphony.xwork2.util.XWorkMapPropertyAccessor.getKey(XWorkMapPro
pertyAccessor.java:136)
at
com.opensymphony.xwork2.util.XWorkMapPropertyAccessor.getProperty(XWorkM
apPropertyAccessor.java:68)
at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1643)
at ognl.ASTProperty.getValueBody(ASTProperty.java:92)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.ASTChain.getValueBody(ASTChain.java:109)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.ASTNotEq.getValueBody(ASTNotEq.java:49)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.ASTAnd.getValueBody(ASTAnd.java:56)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.Ognl.getValue(Ognl.java:333)
at
com.opensymphony.xwork2.util.OgnlUtil.getValue(OgnlUtil.java:194)
at
com.opensymphony.xwork2.util.OgnlValueStack.findValue(OgnlValueStack.jav
a:238)
at
org.apache.struts2.components.Component.findValue(Component.java:322)
at org.apache.struts2.components.If.start(If.java:85)
at
org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTag
Support.java:54)
at
org.apache.jsp.template.scaTheme.Header_jsp._jspx_meth_s_005fif_005f0(He
ader_jsp.java:273)
-
***Note:The information contained in this message may be privileged
and confidential and protected from disclosure. If the reader of
this message is not the intended recipient, or an employee or agent
responsible for delivering this message to the intended recipient,
you are hereby notified that any dissemination, distribution or
copying of this communication is strictly prohibited. If you have
received this communication in error, please notify the Sender
immediately by replying to the message and deleting it from your
computer. Thank you. Premier Inc.
