Problemas com lazy loading

Antes tinhamos alguns problemas nos mapeamentos do nosso sistema… depois que colocamos todos os atributos com relacionamento com lazy=“false”, ou seja, carregando tudo de uma vez, os problemas acabaram.

O problema é que o sistema cresceu… hoje temos uma página que deve listar todos os objetos da classe OS, que por sua vez possui uma lista de objetos da classe Apontamento. A lista de OS’s é enorme, a de Apontamentos muito mais…

Quando a gente manda listar, aparentemente ele consegue carregar tudo, mas dá um pau depois de sair no Action, quando ja ta na JSP…

02/06/2006 09:17:19 org.apache.struts.taglib.tiles.InsertTag$InsertHandler doEndTag SEVERE: ServletException in '/pages/EDOs.jsp': -1 org.apache.jasper.JasperException: -1 at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:696) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:585) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:510) at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966) at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:602) at org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:101) at org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:137) at org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:758) at org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:890) at org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:460) at org.apache.jsp.pages.common.layout_jsp._jspx_meth_tiles_insert_3(layout_jsp.java:228) at org.apache.jsp.pages.common.layout_jsp._jspService(layout_jsp.java:128) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) 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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:696) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:474) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:409) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1056) at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:261) at org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:237) at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:300) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:231) 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:214) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705) at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595)

Quando tentamos listar pela 2ª vez ele nao consegue carregar a lista, no session.createQuery().list() ele dá um pau:

SEVERE: Exception invoking periodic operation: java.lang.OutOfMemoryError: Java heap space

Eu estou testando algumas colecoes com lazy=“true”, mas quando não dá o java.lang.OutOfMemoryError: Java heap space dá o SEVERE: ServletException in ‘/pages/EDOs.jsp’: -1… o que pode ser?

abracao pessoal!