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java.lang.NullPointerException: 	at com.sun.jersey.core.provider.jaxb.AbstractJAXBProvider.setConfiguration(AbstractJAXBProvider.java:113)	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.(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.(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.(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.(ApplicationHandler.java:319)	at org.glassfish.jersey.server.ApplicationHandler.(ApplicationHandler.java:284)	at org.glassfish.jersey.servlet.WebComponent.(WebComponent.java:311)	at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:168)	at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:358)	at javax.servlet.GenericServlet.init(GenericServlet.java:158)