java.lang.OutOfMemoryError: PermGen space
	at org.apache.log4j.Category.forcedLog(Category.java:388)
	at org.apache.log4j.Category.log(Category.java:853)
	at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:229)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:358)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5068)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5584)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
	at org.apache.catalina.core.StandardContext.reload(StandardContext.java:4088)
	at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:425)
	at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1342)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1543)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1553)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1553)
	at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1521)
	at java.lang.Thread.run(Unknown Source)

Exception in thread "ContainerBackgroundProcessor[StandardEngine[Catalina]]"