java.lang.IllegalStateException: getOutputStream() has already been called for this response

Hi

I am getting the fallowing error when i am writing the image into jsp using the out put stream

if(imageByteArray != null){
OutputStream output = response.getOutputStream();
output.write(imageByteArray);
output.fush();
output.close();
}



SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this response
at org.apache.catalina.connector.Response.getWriter(Response.java:610)
at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:198)
at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:112)
at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125)
at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)
at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:326)
at org.apache.jasper.runtime.JspWriterImpl.write(JspWriterImpl.java:342)
at org.apache.jsp.jsp.editObjectForDescription_jsp._jspService(editObjectForDescription_jsp.java:321)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:159)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:239)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1158)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:900)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:808)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:476)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:431)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Unknown Source)

javax.servlet.ServletException: BeanUtils.populate

javax.servlet.ServletException: BeanUtils.populate org.apache.struts.util.RequestUtils.populate(RequestUtils.java:497) org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:798) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:205) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415) javax.servlet.http.HttpServlet.service(HttpServlet.java:709) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) Root Cause: java.lang.IllegalArgumentException: argument type mismatch sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:585) org.apache.commons.beanutils.PropertyUtils.setSimpleProperty(PropertyUtils.java:1789) org.apache.commons.beanutils.PropertyUtils.setNestedProperty(PropertyUtils.java:1684) org.apache.commons.beanutils.PropertyUtils.setProperty(PropertyUtils.java:1713) org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:1019) org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:808) org.apache.struts.util.RequestUtils.populate(RequestUtils.java:495) org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:798) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:205) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415) javax.servlet.http.HttpServlet.service(HttpServlet.java:709) javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

Solution:

Fallowings may be the reason for the above exception 1)The action attribute of an tag must match exactly the path attribute of the action definition in the struts-config.xml file. This is how Struts associates the ActionForm bean with the action. 2) This error usually occurs when you have specified a form name that does not exist in your tag. For example, you specifiec and 'myForm' is not the name of a form associated with myAction in the struts-config file 3)You get this message when Struts is unable to map the data in the HTML form to the properties in your ActionForm bean. Make sure each of the properties on your bean is either a String or a boolean. Do you have any properties of type java.util.Date or other objects? That might cause this error. Also check to see that you have public getters and setter for each of your properties.

org.hibernate.exception.ConstraintViolationException:

org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:69) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:202) at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:91) at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:86) at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:171) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2048) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2427) at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:51) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:243) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:227) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:353) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) at struts.dao.project.budgetAnalysis.BudgetPlanningDAO.saveNewBudget(BudgetAnalysisDAO.java:428) at struts.project.budgetAnalysis.NewBudgetPlanSaveAction.execute(NewBudgetSaveAction.java:99) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595) Caused by: java.sql.BatchUpdateException: ORA-01400: cannot insert NULL into ("ROOT"."PROJECT_BUDGET_TEST"."APPROVED_STATUS") at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:367) at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:8739) at org.apache.tomcat.dbcp.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:294) at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:58) at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:195) ... 36 more

Solution:

This type of problems generally occurs when we try to violate the constraint relationship of the tables. The fallowing cases may be the reason for the above exception: 1)If the user try to enter null value into not null fields of the database. 2)If the user trying to store other format value into the database field.

org.hibernate.TransientObjectException

org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: hibernate.hr.employee.EmployeeStoreValue at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216) at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108) at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:71) at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:1826) at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2172) at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2118) at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2374) at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:84) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:243) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:227) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:141) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980) at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:353) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) at struts.dao.project.budgetAnalysis.BudgetAnalysisDAO.updateProjectBudget(BudgetDAO.java:574) at struts.project.budgetAnalysis.BudgetPlanningAction.approveRejectBudgetExecute(BudgetStoringgAction.java:480) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:276) at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:196) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595)

Solution:

This type of Exception do you get generally when you try to store a null object in to the database column which has foreign key relationship with the other table column. Even if you are trying to store other column value which is not a primary key column.

Class Not Found Exception

SEVERE: Error configuring application listener of class org.apache.myfaces.webapp.StartupServletContextListenerjava.lang.ClassNotFoundException: org.apache.myfaces.webapp.StartupServletContextListener at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1332) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3617) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4104) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:894) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:857) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:475) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1102) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1020) at org.apache.catalina.core.StandardHost.start(StandardHost.java:718) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1012) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442) at org.apache.catalina.core.StandardService.start(StandardService.java:450) at org.apache.catalina.core.StandardServer.start(StandardServer.java:683) at org.apache.catalina.startup.Catalina.start(Catalina.java:537) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:271)

Class Not Found Exception generally occurs when there is no class in the current directory.

Number Format Exception

Exception1:java.lang.NumberFormatException: For input string: "0.0" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) at java.lang.Integer.parseInt(Integer.java:456) at java.lang.Integer.parseInt(Integer.java:497) at struts.project.budgetAnalysis.BudgetClosingAction.displayNewBudgetExecute(BudgetPlanningAction.java:300) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:276) at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:196) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:397) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595)

Soution :

This type of exception you generaly get when you try to convert a number in to unconvertable format. In the above example he is trying to pass String value into the Integer property there he got the exception