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壹佰网|ERP100 - 企业信息化知识门户»论坛 › ≡ERP交流区≡ › Oracle ERP（EBS） › OAF开发 › oaf 运行时报错java.lang.ClassCastException
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[OAF] oaf 运行时报错java.lang.ClassCastException

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发表于 2009/2/5 11:24:40 | 显示全部楼层 |阅读模式
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我在学习oaf第三章时，运行发生错误：经检查为 ((OAPageLayoutBean)webBean).setTitle(pageHeaderText);造成，如何解决呢？
错误代码如下：
oracle.apps.fnd.framework.OAException: java.lang.ClassCastException
        at oracle.apps.fnd.framework.OAException.wrapperException(OAException.java:888)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:544)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.layout.OAMessageComponentLayoutBean.processRequest(OAMessageComponentLayoutBean.java:504)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:328)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.OAPageLayoutHelper.processRequest(OAPageLayoutHelper.java:920)
        at oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean.processRequest(OAPageLayoutBean.java:1536)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.form.OAFormBean.processRequest(OAFormBean.java:363)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.OABodyBean.processRequest(OABodyBean.java:330)
        at oracle.apps.fnd.framework.webui.OAPageBean.processRequest(OAPageBean.java:2121)
        at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:1562)
        at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:463)
        at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:384)
        at _OA._jspService(OA.jsp:40)
        at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
        at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:317)
        at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465)
        at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:727)
        at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)
        at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:767)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:259)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:106)
        at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
        at java.lang.Thread.run(Thread.java:534)
## Detail 0 ##
java.lang.ClassCastException
        at tvsn.oracle.apps.ak.employee.webui.EmployeeDetailsCO.processRequest(EmployeeDetailsCO.java:55)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:518)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.layout.OAMessageComponentLayoutBean.processRequest(OAMessageComponentLayoutBean.java:504)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:328)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.OAPageLayoutHelper.processRequest(OAPageLayoutHelper.java:920)
        at oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean.processRequest(OAPageLayoutBean.java:1536)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.form.OAFormBean.processRequest(OAFormBean.java:363)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.OABodyBean.processRequest(OABodyBean.java:330)
        at oracle.apps.fnd.framework.webui.OAPageBean.processRequest(OAPageBean.java:2121)
        at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:1562)
        at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:463)
        at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:384)
        at _OA._jspService(OA.jsp:40)
        at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
        at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:317)
        at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465)
        at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:727)
        at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)
        at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:767)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:259)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:106)
        at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
        at java.lang.Thread.run(Thread.java:534)
java.lang.ClassCastException
        at tvsn.oracle.apps.ak.employee.webui.EmployeeDetailsCO.processRequest(EmployeeDetailsCO.java:55)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:518)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.layout.OAMessageComponentLayoutBean.processRequest(OAMessageComponentLayoutBean.java:504)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:328)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.OAPageLayoutHelper.processRequest(OAPageLayoutHelper.java:920)
        at oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean.processRequest(OAPageLayoutBean.java:1536)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.form.OAFormBean.processRequest(OAFormBean.java:363)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:866)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:833)
        at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:575)
        at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:244)
        at oracle.apps.fnd.framework.webui.beans.OABodyBean.processRequest(OABodyBean.java:330)
        at oracle.apps.fnd.framework.webui.OAPageBean.processRequest(OAPageBean.java:2121)
        at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:1562)
        at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:463)
        at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:384)
        at _OA._jspService(OA.jsp:40)
        at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
        at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:317)
        at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:465)
        at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:379)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:727)
        at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)
        at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:767)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:259)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:106)
        at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:803)
        at java.lang.Thread.run(Thread.java:534)
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Michael
发表于 2009/2/5 16:08:37 | 显示全部楼层
类型转换错误，问题应该是出在你把CO指定错了Region，再仔细对比一下这一课的内容，是不是CO指定错了。

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参与人数 1努力值 +10 收起 理由
sunweijie22 + 10 非常感谢

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 楼主| 发表于 2009/2/6 19:48:01 | 显示全部楼层
如何才能测地删除co呢？jd上的删除似乎没有效果哦，右击region还是会出现edit某个co
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 楼主| 发表于 2009/2/7 14:10:01 | 显示全部楼层
类型转换错误，问题应该是出在你把CO指定错了Region，再仔细对比一下这一课的内容，是不是CO指定错了。
Michael 发表于 2009-2-5 16:08

确实就是把CO指定给错误的Region,谢谢，请教一下，如何删除一个已经存在的CO？
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发表于 2009/2/7 23:17:36 | 显示全部楼层
在原来的region上直接新创建一个CO,然后原来的CO从工程里面delete，然后再到实际文件系统路径下delete掉java文件，再到myclasses里面相应路径下删掉co.class，就彻底删除了

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参与人数 1努力值 +20 收起 理由
sunweijie22 + 20 谢谢指教

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 楼主| 发表于 2009/2/8 10:39:38 | 显示全部楼层
谢谢2位指教
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