java.lang.ClassCastException in JSP
-----------------------------------
Key: STR-3138
URL: https://issues.apache.org/struts/browse/STR-3138
Project: Struts 1
Issue Type: Bug
Components: Taglibs
Affects Versions: 1.2.7
Environment: Struts 1.2.7, JDK 1.4.2 and Oracle 10g OC4J.
Reporter: Kailas Kore
Hi All,
We are facing "java.lang.ClassCastException" in JSP page. Below are JSP code,
printStackTrace and compiled JSP (from Application Server) file.
JSP Code:
<nested:iterate property="coverage">
<tr>
<td class="text" align="left" valign="top" width="198" height="2">
<html:hidden name="coverage" property="coverageType" indexed="true"/>
<bean:write name="coverage" property="coverageDescription"/>
.
.
.
.
</nested:iterate>
printStackTrace:
08/03/26 15:48:07 java.lang.ClassCastException
08/03/26 15:48:07 at
_jsp._quickquote._Coverages._jspService(_Coverages.java:244)
08/03/26 15:48:07 at
com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
08/03/26 15:48:07 at
oracle.jsp.runtimev2.JspPageTable.compileAndServe(JspPageTable.java:569)
08/03/26 15:48:07 at
oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:305)
08/03/26 15:48:07 at
oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
08/03/26 15:48:07 at
oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
08/03/26 15:48:07 at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:824)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.include(ServletRequestDispatcher.java:121)
08/03/26 15:48:07 at
com.evermind.server.http.EvermindPageContext.include(EvermindPageContext.java:267)
08/03/26 15:48:07 at
org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:99)
08/03/26 15:48:07 at
org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:135)
08/03/26 15:48:07 at
org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:760)
08/03/26 15:48:07 at
org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:892)
08/03/26 15:48:07 at
org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:462)
08/03/26 15:48:07 at
_jsp._template._mainLayout._jspService(_mainLayout.java:93)
08/03/26 15:48:07 at
com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
08/03/26 15:48:07 at
oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:350)
08/03/26 15:48:07 at
oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509)
08/03/26 15:48:07 at
oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)
08/03/26 15:48:07 at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:824)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:222)
08/03/26 15:48:07 at
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1063)
08/03/26 15:48:07 at
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:263)
08/03/26 15:48:07 at
org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:239)
08/03/26 15:48:07 at
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:302)
08/03/26 15:48:07 at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
08/03/26 15:48:07 at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
08/03/26 15:48:07 at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
08/03/26 15:48:07 at
javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
08/03/26 15:48:07 at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:824)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:222)
08/03/26 15:48:07 at
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1063)
08/03/26 15:48:07 at
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:263)
08/03/26 15:48:07 at
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386)
08/03/26 15:48:07 at
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:318)
08/03/26 15:48:07 at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
08/03/26 15:48:07 at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
08/03/26 15:48:07 at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
08/03/26 15:48:07 at
javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
08/03/26 15:48:07 at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:824)
08/03/26 15:48:07 at
com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
08/03/26 15:48:07 at
com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
08/03/26 15:48:07 at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:224)
08/03/26 15:48:07 at
com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)
08/03/26 15:48:07 at
com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
08/03/26 15:48:07 at java.lang.Thread.run(Thread.java:534)
Error is coming in compiled JSP:
org.apache.struts.taglib.bean.WriteTag
__jsp_taghandler_12=(org.apache.struts.taglib.bean.WriteTag)OracleJspRuntime.getTagHandler(pageContext,org.apache.struts.taglib.bean.WriteTag.class,"org.apache.struts.taglib.bean.WriteTag
name property");
In Struts Action we have used below code
CoverageModel[] cs = (CoverageModel[])coverageCol.toArray(new
CoverageModel[0]);
f.set("coverage", cs);
We are facing above exception after 6/8 hours of Application restart. . Some
time we not facing above exception till 48hrs.
5 users accessing application day time.
e.g.
If we restart server @ 1 PM then try to login with new browser session at 7 PM
or 9 PM, we are facing "java.lang.ClassCastException" on JSP page.
If we restart Applcation Server then code is working fine. After restart, we
not get null pointer class cast exception for next 6/8 hour.
Please let me know if anybody has any suggestion/solution.
Thanks and Regards,
Kailas
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