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My source code runs fine in IBM RAD. When I tried to run it in JBuilder, I encountered an error "Incompatible object argument for function call" while running a JSP file. Any idea how to handle it? See details below:

012-06-16 10:20:48 - Ctx( ): Exception in: R( + /FileUploadAction.jsp + null) - javax.servlet.ServletException: (class: whoznextdoor/CommonsFileUploadServlet, method: UploadFile signature: (Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V) Incompatible object argument for function call

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:508)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)

at org.apache.tomcat.core.Handler.service(Handler.java:287)

at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)

at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:812)

at org.apache.tomcat.core.ContextManager.service(ContextManager.java:758)

at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:213)

at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)

at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:501)

at java.lang.Thread.run(Thread.java:662)

Root cause:

java.lang.VerifyError: (class: whoznextdoor/CommonsFileUploadServlet, method: UploadFile signature: (Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V) Incompatible object argument for function call

at _0002fFileUploadAction_0002ejspFileUploadAction_jsp_0._jspService(_0002fFileUploadAction_0002ejspFileUploadAction_jsp_0.java:92)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.jasper.servlet.JspServlet$JspCountedServlet.service(JspServlet.java:130)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:282)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:429)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:500)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)

at org.apache.tomcat.core.Handler.service(Handler.java:287)

at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)

at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:812)

at org.apache.tomcat.core.ContextManager.service(ContextManager.java:758)

at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:213)

at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)

at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:501)

at java.lang.Thread.run(Thread.java:662)
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Member Avatar for mydreamgirl

I tried to google this error and found some people had this kind of exception before. However, it is not clear of how to resolve this error. Please help if you can.

mydreamgirl

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