java.lang.OutOfMemoryError: PermGen space exception when installing/uninstalling features

FuseESB:karaf@root> features:install camel-jpa
Refreshing bundles org.springframework.orm (217), org.springframework.context (100)
org.apache.aries.blueprint[org.apache.aries.blueprint.container.ServiceRecipe] : Error retrieving service from ServiceRecipe[name='ActiveMQXBeanNamespaceHandler']
org.osgi.service.blueprint.container.ComponentDefinitionException: Error when instanciating bean #recipe-1 of class class org.apache.xbean.blueprint.context.impl.XBeanNamespaceHandler
	at org.apache.aries.blueprint.container.BeanRecipe.getInstance(BeanRecipe.java:271)
	at org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:708)
	at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:64)
	at org.apache.aries.blueprint.container.BlueprintRepository.createInstances(BlueprintRepository.java:219)
	at org.apache.aries.blueprint.container.BlueprintRepository.createInstance(BlueprintRepository.java:198)
	at org.apache.aries.blueprint.container.BlueprintRepository.create(BlueprintRepository.java:137)
	at org.apache.aries.blueprint.container.ServiceRecipe.createRecipe(ServiceRecipe.java:370)
	at org.apache.aries.blueprint.container.ServiceRecipe.createService(ServiceRecipe.java:278)
	at org.apache.aries.blueprint.container.ServiceRecipe.internalGetService(ServiceRecipe.java:248)
	at org.apache.aries.blueprint.container.ServiceRecipe.getService(ServiceRecipe.java:327)
	at org.apache.aries.blueprint.container.ServiceRecipe$TriggerServiceFactory.getService(ServiceRecipe.java:430)
	at org.apache.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:308)
	at org.apache.felix.framework.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:219)
	at org.apache.felix.framework.ServiceRegistry.getService(ServiceRegistry.java:310)
	at org.apache.felix.framework.Felix.getService(Felix.java:3497)
	at org.apache.felix.framework.BundleContextImpl.getService(BundleContextImpl.java:468)
	at org.apache.aries.blueprint.namespace.NamespaceHandlerRegistryImpl.addingService(NamespaceHandlerRegistryImpl.java:98)
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:980)
	at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1)
	at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:262)
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:234)
	at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:941)
	at org.apache.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:934)
	at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:795)
	at org.apache.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:544)
	at org.apache.felix.framework.Felix.fireServiceEvent(Felix.java:4337)
	at org.apache.felix.framework.Felix.registerService(Felix.java:3352)
	at org.apache.felix.framework.BundleContextImpl.registerService(BundleContextImpl.java:346)
	at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:408)
	at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:184)
	at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:666)
	at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:334)
	at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:230)
	at org.apache.aries.blueprint.container.BlueprintExtender.checkBundle(BlueprintExtender.java:325)
	at org.apache.aries.blueprint.container.BlueprintExtender.bundleChanged(BlueprintExtender.java:244)
	at org.apache.aries.blueprint.container.BlueprintExtender$BlueprintBundleTrackerCustomizer.modifiedBundle(BlueprintExtender.java:471)
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:495)
	at org.osgi.util.tracker.BundleTracker$Tracked.customizerModified(BundleTracker.java:1)
	at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:238)
	at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:457)
	at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:870)
	at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:791)
	at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:515)
	at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4321)
	at org.apache.felix.framework.Felix.startBundle(Felix.java:1945)
	at org.apache.felix.framework.Felix$RefreshHelper.restart(Felix.java:4831)
	at org.apache.felix.framework.Felix.refreshPackages(Felix.java:4046)
	at org.apache.felix.framework.FrameworkWiringImpl.run(FrameworkWiringImpl.java:172)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.OutOfMemoryError: PermGen space
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
	at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.findClass(BundleWiringImpl.java:2129)
	at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1433)
	at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:73)
	at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1844)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	at org.apache.felix.framework.Felix.loadBundleClass(Felix.java:1745)
	at org.apache.felix.framework.BundleImpl.loadClass(BundleImpl.java:929)
	at org.apache.xbean.blueprint.context.impl.XBeanNamespaceHandler.managedClassesFromProperties(XBeanNamespaceHandler.java:168)
	at org.apache.xbean.blueprint.context.impl.XBeanNamespaceHandler.<init>(XBeanNamespaceHandler.java:111)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at org.apache.aries.blueprint.utils.ReflectionUtils.newInstance(ReflectionUtils.java:257)
	at org.apache.aries.blueprint.container.BeanRecipe.newInstance(BeanRecipe.java:842)
	at org.apache.aries.blueprint.container.BeanRecipe.getInstance(BeanRecipe.java:269)
	at org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:708)
	at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:64)
	at org.apache.aries.blueprint.container.BlueprintRepository.createInstances(BlueprintRepository.java:219)
	at org.apache.aries.blueprint.container.BlueprintRepository.createInstance(BlueprintRepository.java:198)
	at org.apache.aries.blueprint.container.BlueprintRepository.create(BlueprintRepository.java:137)
	at org.apache.aries.blueprint.container.ServiceRecipe.createRecipe(ServiceRecipe.java:370)
	at org.apache.aries.blueprint.container.ServiceRecipe.createService(ServiceRecipe.java:278)
	at org.apache.aries.blueprint.container.ServiceRecipe.internalGetService(ServiceRecipe.java:248)
	at org.apache.aries.blueprint.container.ServiceRecipe.getService(ServiceRecipe.java:327)
	at org.apache.aries.blueprint.container.ServiceRecipe$TriggerServiceFactory.getService(ServiceRecipe.java:430)
	at org.apache.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:308)
	at org.apache.felix.framework.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:219)
	at org.apache.felix.framework.ServiceRegistry.getService(ServiceRegistry.java:310)
log4j:ERROR A "org.apache.log4j.RollingFileAppender" object is not assignable to a "org.apache.log4j.Appender" variable.
log4j:ERROR The class "org.apache.log4j.Appender" was loaded by 
log4j:ERROR [org.apache.felix.framework.BundleWiringImpl@584b70e] whereas object of type 
log4j:ERROR "org.apache.log4j.RollingFileAppender" was loaded by [org.apache.felix.framework.BundleWiringImpl@741e9d69].
log4j:ERROR Could not instantiate appender named "out".
log4j:ERROR A "org.apache.log4j.OsgiThrowableRenderer" object is not assignable to a "org.apache.log4j.spi.ThrowableRenderer" variable.
log4j:ERROR The class "org.apache.log4j.spi.ThrowableRenderer" was loaded by 
log4j:ERROR [org.apache.felix.framework.BundleWiringImpl@584b70e] whereas object of type 
log4j:ERROR "org.apache.log4j.OsgiThrowableRenderer" was loaded by [org.apache.felix.framework.BundleWiringImpl@741e9d69].
log4j:ERROR Could not instantiate throwableRenderer.
FuseESB:karaf@root> 

features:install camel-jpa

features:install camel-jpa