مشكلة في مناداة ريبورت فيه باراميتر

بتاريخ: 12 يناير 20179 سنة

السلام عليكم ورحمة الله وبركاته . . . ~

أقوم بإستدعاء تقرير فيه بارامتر

التقرير شغال علي جاسبر ريبورت 5.6.0

لكن لما أعمله استدعاء في jdeveloper 11 بيظهرلي الرسالة دي

Error 500--Internal Server Error

java.lang.IllegalStateException: strict servlet API: cannot call getWriter() after getOutputStream()	at weblogic.servlet.internal.ServletResponseImpl.getWriter(ServletResponseImpl.java:307)	at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:122)	at com.sun.faces.context.ExternalContextImpl.getResponseOutputWriter(ExternalContextImpl.java:723)	at javax.faces.context.ExternalContextWrapper.getResponseOutputWriter(ExternalContextWrapper.java:669)	at javax.faces.context.ExternalContextWrapper.getResponseOutputWriter(ExternalContextWrapper.java:669)	at javax.faces.context.ExternalContextWrapper.getResponseOutputWriter(ExternalContextWrapper.java:669)	at javax.faces.context.ExternalContextWrapper.getResponseOutputWriter(ExternalContextWrapper.java:669)	at javax.faces.context.ExternalContextWrapper.getResponseOutputWriter(ExternalContextWrapper.java:669)	at com.sun.faces.application.view.FaceletViewHandlingStrategy.createResponseWriter(FaceletViewHandlingStrategy.java:879)	at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:374)	at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.renderView(ViewDeclarationLanguageFactoryImpl.java:350)	at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)	at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:273)	at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:165)	at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:1035)	at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:342)	at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:236)	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:509)	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:173)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:125)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)	at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:468)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:293)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:199)	at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)	at java.security.AccessController.doPrivileged(Native Method)	at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)	at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)	at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)	at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)	at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)	at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)

الكود المستخدم ع ال Btn

    public String param_action() {
        Map parm = new HashMap();
        parm.put("deptno", deptID);
        try {
            obj.runReport("parmreport.jasper", parm);
        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }