nullpointerexception - Error while downloading file from jasper -


i trying download report oracle 11g using jasper server. url calling apex. small files working correctly

but when report become 15mb or exported file showing error. not apex time out. output file format excel , getting exported there no data. used virtualization , changed memory size mentioned in config file..it didnt helped..

its showing error below

java.lang.nullpointerexception @ com.jaspersoft.jasperserver.war.action.reportparametersaction.getinputcontrolwrappers(reportparametersaction.java:297) @ com.jaspersoft.jasperserver.war.action.reportparametersaction.hasinputs(reportparametersaction.java:302) @ com.jaspersoft.jasperserver.war.action.viewreportaction.saveinputsstate(viewreportaction.java:396) @ com.jaspersoft.jasperserver.war.action.viewreportaction.runreport(viewreportaction.java:332) @ 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:597) @ org.springframework.webflow.action.dispatchmethodinvoker.invoke(dispatchmethodinvoker.java:98) @ org.springframework.webflow.action.multiaction.doexecute(multiaction.java:123) @ org.springframework.webflow.action.abstractaction.execute(abstractaction.java:188) @ org.springframework.webflow.execution.annotatedaction.execute(annotatedaction.java:145) @ org.springframework.webflow.execution.actionexecutor.execute(actionexecutor.java:51) @ org.springframework.webflow.action.evaluateaction.doexecute(evaluateaction.java:79) @ org.springframework.webflow.action.abstractaction.execute(abstractaction.java:188) @ org.springframework.webflow.execution.annotatedaction.execute(annotatedaction.java:145) @ org.springframework.webflow.execution.actionexecutor.execute(actionexecutor.java:51) @ org.springframework.webflow.engine.actionstate.doenter(actionstate.java:101) @ org.springframework.webflow.engine.state.enter(state.java:194) @ org.springframework.webflow.engine.transition.execute(transition.java:227) @ org.springframework.webflow.engine.decisionstate.doenter(decisionstate.java:51) @ org.springframework.webflow.engine.state.enter(state.java:194) @ org.springframework.webflow.engine.transition.execute(transition.java:227) @ org.springframework.webflow.engine.impl.flowexecutionimpl.execute(flowexecutionimpl.java:391) @ org.springframework.webflow.engine.impl.requestcontrolcontextimpl.execute(requestcontrolcontextimpl.java:214) @ org.springframework.webflow.engine.transitionablestate.handleevent(transitionablestate.java:119) @ org.springframework.webflow.engine.flow.handleevent(flow.java:555) @ org.springframework.webflow.engine.impl.flowexecutionimpl.handleevent(flowexecutionimpl.java:386) @ org.springframework.webflow.engine.impl.requestcontrolcontextimpl.handleevent(requestcontrolcontextimpl.java:210) @ org.springframework.webflow.engine.actionstate.doenter(actionstate.java:105) @ org.springframework.webflow.engine.state.enter(state.java:194) @ org.springframework.webflow.engine.flow.start(flow.java:535) @ org.springframework.webflow.engine.impl.flowexecutionimpl.start(flowexecutionimpl.java:364) @ org.springframework.webflow.engine.impl.flowexecutionimpl.start(flowexecutionimpl.java:222) @ org.springframework.webflow.executor.flowexecutorimpl.launchexecution(flowexecutorimpl.java:140) @ sun.reflect.generatedmethodaccessor292.invoke(unknown source) @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:25) @ java.lang.reflect.method.invoke(method.java:597) @ org.springframework.aop.support.aoputils.invokejoinpointusingreflection(aoputils.java:307) @ org.springframework.aop.framework.reflectivemethodinvocation.invokejoinpoint(reflectivemethodinvocation.java:182) @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:149) @ org.springframework.security.intercept.method.aopalliance.methodsecurityinterceptor.invoke(methodsecurityinterceptor.java:66) @ org.springframework.aop.framework.reflectivemethodinvocation.proceed(reflectivemethodinvocation.java:171) @ org.springframework.aop.framework.jdkdynamicaopproxy.invoke(jdkdynamicaopproxy.java:204) @ $proxy19.launchexecution(unknown source) @ org.springframework.webflow.mvc.servlet.flowhandleradapter.handle(flowhandleradapter.java:193) @ org.springframework.webflow.mvc.servlet.flowcontroller.handlerequest(flowcontroller.java:174) @ org.springframework.web.servlet.mvc.simplecontrollerhandleradapter.handle(simplecontrollerhandleradapter.java:48) @ org.springframework.web.servlet.dispatcherservlet.dodispatch(dispatcherservlet.java:875) @ org.springframework.web.servlet.dispatcherservlet.doservice(dispatcherservlet.java:807) @ org.springframework.web.servlet.frameworkservlet.processrequest(frameworkservlet.java:571) @ org.springframework.web.servlet.frameworkservlet.doget(frameworkservlet.java:501) @ javax.servlet.http.httpservlet.service(httpservlet.java:617) @ javax.servlet.http.httpservlet.service(httpservlet.java:717) @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:290) @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:399) @ com.jaspersoft.jasperserver.api.security.ipadsupportfilter.dofilter(ipadsupportfilter.java:67) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ com.jaspersoft.jasperserver.api.security.jsswitchuserprocessingfilter.dofilterhttp(jsswitchuserprocessingfilter.java:154) @ org.springframework.security.ui.springsecurityfilter.dofilter(springsecurityfilter.java:53) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ org.springframework.security.intercept.web.filtersecurityinterceptor.invoke(filtersecurityinterceptor.java:109) @ org.springframework.security.intercept.web.filtersecurityinterceptor.dofilter(filtersecurityinterceptor.java:83) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ org.springframework.security.ui.exceptiontranslationfilter.dofilterhttp(exceptiontranslationfilter.java:101) @ org.springframework.security.ui.springsecurityfilter.dofilter(springsecurityfilter.java:53) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ org.springframework.security.providers.anonymous.anonymousprocessingfilter.dofilterhttp(anonymousprocessingfilter.java:105) @ org.springframework.security.ui.springsecurityfilter.dofilter(springsecurityfilter.java:53) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ com.jaspersoft.jasperserver.api.metadata.user.service.impl.metadataauthenticationprocessingfilter.dofilter(metadataauthenticationprocessingfilter.java:139) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ com.jaspersoft.jasperserver.war.util.requestparameterauthenticationfilter.dofilter(requestparameterauthenticationfilter.java:97) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ org.springframework.security.ui.basicauth.basicprocessingfilter.dofilterhttp(basicprocessingfilter.java:174) @ org.springframework.security.ui.springsecurityfilter.dofilter(springsecurityfilter.java:53) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ com.jaspersoft.jasperserver.war.userpreferencesfilter.dofilter(userpreferencesfilter.java:184) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ org.springframework.security.ui.abstractprocessingfilter.dofilterhttp(abstractprocessingfilter.java:278) @ org.springframework.security.ui.springsecurityfilter.dofilter(springsecurityfilter.java:53) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ com.jaspersoft.jasperserver.war.userpreferencesfilter.dofilter(userpreferencesfilter.java:184) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ com.jaspersoft.jasperserver.api.logging.filter.basicloggingfilter.dofilter(basicloggingfilter.java:53) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ com.jaspersoft.jasperserver.api.security.jscsrfguardfilter.dofilter(jscsrfguardfilter.java:81) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ com.jaspersoft.jasperserver.api.security.webappsecurityfilter.dofilter(webappsecurityfilter.java:83) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ com.jaspersoft.jasperserver.war.multipartrequestwrapperfilter.dofilter(multipartrequestwrapperfilter.java:90) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ org.springframework.security.context.httpsessioncontextintegrationfilter.dofilterhttp(httpsessioncontextintegrationfilter.java:235) @ org.springframework.security.ui.springsecurityfilter.dofilter(springsecurityfilter.java:53) @ org.springframework.security.util.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:411) @ org.springframework.security.util.filterchainproxy.dofilter(filterchainproxy.java:188) @ org.springframework.security.util.filtertobeanproxy.dofilter(filtertobeanproxy.java:99) @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:235) @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206) @ com.jaspersoft.jasperserver.war.util.characterencodingfilter.dofilter(characterencodingfilter.java:67) @ org.springframework.web.filter.delegatingfilterproxy.invokedelegate(delegatingfilterproxy.java:236) @ org.springframework.web.filter.delegatingfilterproxy.dofilter(delegatingfilterproxy.java:167) @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:235) @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206) @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:233) @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:191) @ org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:558) @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:127) @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:102) @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:109) @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:298) @ org.apache.coyote.http11.http11aprprocessor.process(http11aprprocessor.java:859) @ org.apache.coyote.http11.http11aprprotocol$http11connectionhandler.process(http11aprprotocol.java:579) @ org.apache.tomcat.util.net.aprendpoint$worker.run(aprendpoint.java:1555) @ java.lang.thread.run(thread.java:619)


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