[WW-1243] doubleselect tag causes exception, indicating invalid stack constitution assumption

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: WW 2.2.1
• Fix Version/s: WW 2.2.2
• Component/s: Build Management, Example Applications, Plugin - Tags
• Assignee: René Gielen
• Reporter: René Gielen
• Created: 16/Mar/06 20:04
• Updated: 28/Oct/12 22:11
• Resolved: 18/Mar/06 17:18

Description

When rendering
http://localhost:8080/showcase/tags/ui/example!input.action

the following exeption is thrown:
2006-03-16 18:59:50,991 WARN [OgnlValueStack.java:207] : Caught an exception while evaluating expression 'top == 'North' ?

{'Oregon', 'Washington'}

:

{'Texas', 'Florida'}

' against value stack
java.lang.IllegalArgumentException: invalid comparison: com.opensymphony.webwork.showcase.UITagExample and java.lang.String
at ognl.OgnlOps.compareWithConversion(OgnlOps.java:93)
at ognl.OgnlOps.isEqual(OgnlOps.java:142)
at ognl.OgnlOps.equal(OgnlOps.java:533)
at ognl.ASTEq.getValueBody(ASTEq.java:51)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.ASTTest.getValueBody(ASTTest.java:49)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.Ognl.getValue(Ognl.java:333)
at ognl.Ognl.getValue(Ognl.java:310)
at com.opensymphony.xwork.util.OgnlUtil.getValue(OgnlUtil.java:188)
at com.opensymphony.xwork.util.OgnlValueStack.findValue(OgnlValueStack.java:198)
at com.opensymphony.webwork.components.Component.findValue(Component.java:230)
at com.opensymphony.webwork.components.DoubleListUIBean.evaluateExtraParams(DoubleListUIBean.java:108)
at com.opensymphony.webwork.components.DoubleSelect.evaluateExtraParams(DoubleSelect.java:43)
at com.opensymphony.webwork.components.UIBean.evaluateParams(UIBean.java:874)
at com.opensymphony.webwork.components.UIBean.end(UIBean.java:581)
at com.opensymphony.webwork.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:21)
at org.apache.jsp.tags.ui.example_jsp._jspx_meth_ww_doubleselect_0(org.apache.jsp.tags.ui.example_jsp:419)
at org.apache.jsp.tags.ui.example_jsp._jspx_meth_ww_form_0(org.apache.jsp.tags.ui.example_jsp:202)
at org.apache.jsp.tags.ui.example_jsp._jspService(org.apache.jsp.tags.ui.example_jsp:111)
...