title: Migrating from Spring-Jersey 1.x to 2.x
body: <p>I've been using Spring 3.1 with Spring-Jersey 1.x, Jackson 2.x, and Hibernate for sometime. I want to upgrade to Spring-Jersey 2.6.</p>
  
  <p>I'm including all the relevant dependencies according to the Jersey User guide and example apps. I have a feeling my issue may be related to my POJO using both Jackson and JAXB annotations, but I can't seem to figure out how to move forward. I did not seem to have any issues with Jackson parsing the JAX-B annotations previously, so I'm not sure how to modify my configuration.</p>
  
  <p>My application looks something like:</p>
  
  <pre><code>    public class MyApplication extends ResourceConfig {
  
          public MyApplication(){
              packages(true,"com.my.app");
              register(JacksonContextResolver.class); //Custom Context Resolver
              register(JacksonFeature.class);
          }
      }
  </code></pre>
  
  <p>On start up I'm getting this error:</p>
  
  <pre><code>    MultiException stack 1 of 3
      java.lang.NullPointerException
          at com.sun.jersey.core.provider.jaxb.AbstractJAXBProvider.setConfiguration(AbstractJAXBProvider.java:109)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at java.lang.reflect.Method.invoke(Method.java:601)
          at org.glassfish.hk2.utilities.reflection.ReflectionHelper.invoke(ReflectionHelper.java:1017)
          at org.jvnet.hk2.internal.ClazzCreator.methodMe(ClazzCreator.java:375)
          at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:428)
          at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:456)
          at org.jvnet.hk2.internal.PerLookupContext.findOrCreate(PerLookupContext.java:69)
          at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2445)
          at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:98)
          at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:87)
          at org.glassfish.jersey.internal.inject.ProviderToService.apply(ProviderToService.java:58)
          at org.glassfish.jersey.internal.inject.ProviderToService.apply(ProviderToService.java:54)
          at jersey.repackaged.com.google.common.collect.Iterators$8.transform(Iterators.java:860)
          at jersey.repackaged.com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48)
          at java.util.AbstractCollection.addAll(AbstractCollection.java:333)
          at java.util.LinkedHashSet.&lt;init&gt;(LinkedHashSet.java:169)
          at jersey.repackaged.com.google.common.collect.Sets.newLinkedHashSet(Sets.java:292)
          at org.glassfish.jersey.internal.inject.Providers.getClasses(Providers.java:364)
          at org.glassfish.jersey.internal.inject.Providers.getProviders(Providers.java:186)
          at org.glassfish.jersey.message.internal.MessageBodyFactory.&lt;init&gt;(MessageBodyFactory.java:304)
          at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
          at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
          at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
          at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
          at org.glassfish.hk2.utilities.reflection.ReflectionHelper.makeMe(ReflectionHelper.java:1105)
          at org.jvnet.hk2.internal.ClazzCreator.createMe(ClazzCreator.java:292)
          at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:422)
          at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:456)
          at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:114)
          at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:102)
          at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture$1.call(Cache.java:97)
          at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
          at java.util.concurrent.FutureTask.run(FutureTask.java:166)
          at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture.run(Cache.java:154)
          at org.glassfish.hk2.utilities.cache.Cache.compute(Cache.java:199)
          at org.jvnet.hk2.internal.SingletonContext.findOrCreate(SingletonContext.java:153)
          at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2445)
          at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:621)
          at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:606)
          at org.glassfish.jersey.server.model.ComponentModelValidator.&lt;init&gt;(ComponentModelValidator.java:97)
          at org.glassfish.jersey.server.ApplicationHandler.initialize(ApplicationHandler.java:457)
          at org.glassfish.jersey.server.ApplicationHandler.access$500(ApplicationHandler.java:162)
          at org.glassfish.jersey.server.ApplicationHandler$3.run(ApplicationHandler.java:322)
          at org.glassfish.jersey.internal.Errors$2.call(Errors.java:289)
          at org.glassfish.jersey.internal.Errors$2.call(Errors.java:286)
          at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
          at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
          at org.glassfish.jersey.internal.Errors.processWithException(Errors.java:286)
          at org.glassfish.jersey.server.ApplicationHandler.&lt;init&gt;(ApplicationHandler.java:319)
          at org.glassfish.jersey.server.ApplicationHandler.&lt;init&gt;(ApplicationHandler.java:284)
          at org.glassfish.jersey.servlet.WebComponent.&lt;init&gt;(WebComponent.java:311)
          at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:168)
          at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:388)
          at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
          at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
          at org.apache.catalina.core.ApplicationFilterConfig.&lt;init&gt;(ApplicationFilterConfig.java:115)
          at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4001)
          at org.apache.catalina.core.StandardContext.start(StandardContext.java:4651)
          at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
          at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
          at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
          at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:905)
          at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:740)
          at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:500)
          at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1345)
          at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:303)
          at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
          at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
          at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
          at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
          at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
          at java.lang.Thread.run(Thread.java:722)
      MultiException stack 2 of 3
      java.lang.IllegalStateException: Unable to perform operation: method inject on com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$App
          at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:449)
          at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:456)
          at org.jvnet.hk2.internal.PerLookupContext.findOrCreate(PerLookupContext.java:69)
          at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2445)
          at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:98)
          at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:87)
          at org.glassfish.jersey.internal.inject.ProviderToService.apply(ProviderToService.java:58)
          at org.glassfish.jersey.internal.inject.ProviderToService.apply(ProviderToService.java:54)
          at jersey.repackaged.com.google.common.collect.Iterators$8.transform(Iterators.java:860)
          at jersey.repackaged.com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48)
          at java.util.AbstractCollection.addAll(AbstractCollection.java:333)
          at java.util.LinkedHashSet.&lt;init&gt;(LinkedHashSet.java:169)
          at jersey.repackaged.com.google.common.collect.Sets.newLinkedHashSet(Sets.java:292)
          at org.glassfish.jersey.internal.inject.Providers.getClasses(Providers.java:364)
          at org.glassfish.jersey.internal.inject.Providers.getProviders(Providers.java:186)
          at org.glassfish.jersey.message.internal.MessageBodyFactory.&lt;init&gt;(MessageBodyFactory.java:304)
          at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
          at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
          at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
          at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
          at org.glassfish.hk2.utilities.reflection.ReflectionHelper.makeMe(ReflectionHelper.java:1105)
          at org.jvnet.hk2.internal.ClazzCreator.createMe(ClazzCreator.java:292)
          at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:422)
          at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:456)
          at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:114)
          at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:102)
          at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture$1.call(Cache.java:97)
          at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
          at java.util.concurrent.FutureTask.run(FutureTask.java:166)
          at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture.run(Cache.java:154)
          at org.glassfish.hk2.utilities.cache.Cache.compute(Cache.java:199)
          at org.jvnet.hk2.internal.SingletonContext.findOrCreate(SingletonContext.java:153)
          at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2445)
          at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:621)
          at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:606)
          at org.glassfish.jersey.server.model.ComponentModelValidator.&lt;init&gt;(ComponentModelValidator.java:97)
          at org.glassfish.jersey.server.ApplicationHandler.initialize(ApplicationHandler.java:457)
          at org.glassfish.jersey.server.ApplicationHandler.access$500(ApplicationHandler.java:162)
          at org.glassfish.jersey.server.ApplicationHandler$3.run(ApplicationHandler.java:322)
          at org.glassfish.jersey.internal.Errors$2.call(Errors.java:289)
          at org.glassfish.jersey.internal.Errors$2.call(Errors.java:286)
          at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
          at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
          at org.glassfish.jersey.internal.Errors.processWithException(Errors.java:286)
          at org.glassfish.jersey.server.ApplicationHandler.&lt;init&gt;(ApplicationHandler.java:319)
          at org.glassfish.jersey.server.ApplicationHandler.&lt;init&gt;(ApplicationHandler.java:284)
          at org.glassfish.jersey.servlet.WebComponent.&lt;init&gt;(WebComponent.java:311)
          at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:168)
          at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:388)
          at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
          at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
          at org.apache.catalina.core.ApplicationFilterConfig.&lt;init&gt;(ApplicationFilterConfig.java:115)
          at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4001)
          at org.apache.catalina.core.StandardContext.start(StandardContext.java:4651)
          at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
          at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
          at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
          at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:905)
          at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:740)
          at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:500)
          at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1345)
          at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:303)
          at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
          at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
          at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
          at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
          at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
          at java.lang.Thread.run(Thread.java:722)
      MultiException stack 3 of 3
      java.lang.IllegalStateException: Unable to perform operation: create on org.glassfish.jersey.message.internal.MessageBodyFactory
          at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:443)
          at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:456)
          at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:114)
          at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:102)
          at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture$1.call(Cache.java:97)
          at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
          at java.util.concurrent.FutureTask.run(FutureTask.java:166)
          at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture.run(Cache.java:154)
          at org.glassfish.hk2.utilities.cache.Cache.compute(Cache.java:199)
          at org.jvnet.hk2.internal.SingletonContext.findOrCreate(SingletonContext.java:153)
          at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2445)
          at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:621)
          at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:606)
          at org.glassfish.jersey.server.model.ComponentModelValidator.&lt;init&gt;(ComponentModelValidator.java:97)
          at org.glassfish.jersey.server.ApplicationHandler.initialize(ApplicationHandler.java:457)
          at org.glassfish.jersey.server.ApplicationHandler.access$500(ApplicationHandler.java:162)
          at org.glassfish.jersey.server.ApplicationHandler$3.run(ApplicationHandler.java:322)
          at org.glassfish.jersey.internal.Errors$2.call(Errors.java:289)
          at org.glassfish.jersey.internal.Errors$2.call(Errors.java:286)
          at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
          at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
          at org.glassfish.jersey.internal.Errors.processWithException(Errors.java:286)
          at org.glassfish.jersey.server.ApplicationHandler.&lt;init&gt;(ApplicationHandler.java:319)
          at org.glassfish.jersey.server.ApplicationHandler.&lt;init&gt;(ApplicationHandler.java:284)
          at org.glassfish.jersey.servlet.WebComponent.&lt;init&gt;(WebComponent.java:311)
          at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:168)
          at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:388)
          at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
          at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
          at org.apache.catalina.core.ApplicationFilterConfig.&lt;init&gt;(ApplicationFilterConfig.java:115)
          at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4001)
          at org.apache.catalina.core.StandardContext.start(StandardContext.java:4651)
          at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
          at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
          at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
          at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:905)
          at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:740)
          at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:500)
          at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1345)
          at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:303)
          at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
          at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
          at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
          at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
          at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
          at java.lang.Thread.run(Thread.java:722)
  </code></pre>