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https://issues.apache.org/jira/browse/OGNL-46?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13186158#comment-13186158
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Maurizio Cucchiara commented on OGNL-46:
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I bet that your week var is an integer and I guess it is something to do with
struts type conversion, after all to what would you implicitly convert a null
object? it is a good candidate for almost everything.
BTW I agree with you, if there is an int setter, there is no reason to look for
a string setter.
I'll take a deeper look (as soon as I can) to understand if it is a struts or
an ognl related issue.
> Nullsafe method selection?
> --------------------------
>
> Key: OGNL-46
> URL: https://issues.apache.org/jira/browse/OGNL-46
> Project: Commons OGNL
> Issue Type: Bug
> Reporter: Christian Grobmeier
> Priority: Minor
>
> For some reason it seems that with Struts 2.3.1 sending a null value does
> lead to confusion in OGNL. For example:
> setToken(String token){}
> should be set by OGNL. It works, if String != null. If String is null, OGNL
> claims this method does not exist for unknown reason. Probably this is
> somehow related to Struts, but feeling says solution can be found in OGNL.
> Workaround is not to send null ;-)
> 2012-01-13 15:58:29,830 WARN [CommonsLogger.java:60] : Error setting
> expression 'week' with value '[Ljava.lang.String;@6e895972'
> ognl.MethodFailedException: Method "setWeek" failed for object
> de.grobmeier.tab.webapp.services.DateTimeService@332b6f2a
> [java.lang.NoSuchMethodException:
> de.grobmeier.tab.webapp.services.DateTimeService.setWeek([Ljava.lang.String;)]
> at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1292)
> at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1481)
> at
> ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85)
> at
> ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)
> at
> com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:27)
> at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2318)
> at
> com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.setProperty(CompoundRootAccessor.java:77)
> at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2318)
> at ognl.ASTProperty.setValueBody(ASTProperty.java:127)
> 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:209)
> at
> com.opensymphony.xwork2.ognl.OgnlValueStack.trySetValue(OgnlValueStack.java:173)
> at
> com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:160)
> at
> com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:151)
> at
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:292)
> at
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:203)
> at
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
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