jboss 7 java.lang.OutOfMemoryError：Java堆空间

Question

salem,

I work with jboss 7 , spring ,hibernate,

under eclipse I make this config in order to increase the memory :

-Xms1024M

this is the config of VM arguments

-server -Xms64m -Xmx512m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true "-Dorg.jboss.boot.log.file=C:/test/jboss-as-7.1.1.Final/standalone/log/boot.log" "-Dlogging.configuration=file:/C:/test/jboss-as-7.1.1.Final/standalone/configuration/logging.properties" "-Djboss.home.dir=C:/test/jboss-as-7.1.1.Final" -Xms1024M

and when I work in my application I have this error :

I have a message which repeats :

11:08:35,098 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'

11:08:35,098 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,109 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,129 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,136 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,143 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,182 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,193 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,197 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,215 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,224 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,234 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,242 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,264 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,272 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,300 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:35,360 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'

11:08:37,182 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:37,216 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:37,293 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:37,416 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'
11:08:39,309 ERROR [org.directwebremoting.impl.DefaultConverterManager] (http-localhost-127.0.0.1-8080-6) No converter found for 'org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer'

11:08:58,234 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/TaifLicensing].[dwr-invoker]] (http-localhost-127.0.0.1-8080-6) "Servlet.service()" pour la servlet dwr-invoker a généré une exception: java.lang.OutOfMemoryError: Java heap space
    at java.util.Arrays.copyOf(Arrays.java:2882) [rt.jar:1.6.0_25]
    at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100) [rt.jar:1.6.0_25]
    at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:390) [rt.jar:1.6.0_25]
    at java.lang.StringBuffer.append(StringBuffer.java:224) [rt.jar:1.6.0_25]
    at org.directwebremoting.extend.ArrayOutboundVariable.getAssignCode(ArrayOutboundVariable.java:101) [dwr.jar:]
    at org.directwebremoting.extend.ScriptBufferUtil.createOutput(ScriptBufferUtil.java:95) [dwr.jar:]
    at org.directwebremoting.dwrp.BaseCallHandler$CallScriptConduit.addScript(BaseCallHandler.java:485) [dwr.jar:]
    at org.directwebremoting.dwrp.BaseCallHandler.marshallOutbound(BaseCallHandler.java:345) [dwr.jar:]
    at org.directwebremoting.dwrp.BaseCallHandler.handle(BaseCallHandler.java:105) [dwr.jar:]
    at org.directwebremoting.servlet.UrlProcessor.handle(UrlProcessor.java:120) [dwr.jar:]
    at org.directwebremoting.servlet.DwrServlet.doPost(DwrServlet.java:141) [dwr.jar:]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:150) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183) [spring-security-web-3.2.0.M1.jar:3.2.0.M1]

Answer 1

It looks like you are trying to retrieve an object with a circular relationship, that's why you are getting so many JavassistLazyInitializer exception messages. Hibernate will just continue going in circles trying to create your nested objects until you run out of heap space.