Null pointer while creating a coucbase connection

static {
config = ConfigFactory.parseFile(new File(“conf/application.conf”));
env = DefaultCouchbaseEnvironment.builder().build();
cluster = CouchbaseCluster.create(env, System.getenv(Constants.COUCHBASE_URL));
bucket = cluster.openBucket(System.getenv(Constants.COUCHBASE_BUCKET_NAME),
System.getenv(Constants.COUCHBASE_BUCKET_PASSWORD));
}

Nullpointer expection

Exception in thread “main” java.lang.ExceptionInInitializerError
at com.google.inject.internal.DefaultConstructionProxyFactory$FastClassProxy.newInstance(DefaultConstructionProxyFactory.java:89)
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:111)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:90)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:268)
at com.google.inject.internal.SingleFieldInjector.inject(SingleFieldInjector.java:54)
at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:132)
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:120)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:90)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:268)
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38)
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62)
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:110)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:90)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:268)
at com.google.inject.internal.InjectorImpl$2$1.call(InjectorImpl.java:1019)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
at com.google.inject.internal.InjectorImpl$2.get(InjectorImpl.java:1015)
at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1054)
at play.api.inject.guice.GuiceInjector.instanceOf(GuiceInjectorBuilder.scala:409)
at play.api.inject.ContextClassLoaderInjector.$anonfun$instanceOf$3(Injector.scala:118)
at play.api.inject.ContextClassLoaderInjector.withContext(Injector.scala:126)
at play.api.inject.ContextClassLoaderInjector.instanceOf(Injector.scala:118)
at play.api.inject.RoutesProvider.$anonfun$get$2(BuiltinModule.scala:104)
at scala.Option.fold(Option.scala:158)
at play.api.inject.RoutesProvider.get$lzycompute(BuiltinModule.scala:104)
at play.api.inject.RoutesProvider.get(BuiltinModule.scala:100)
at play.api.inject.RoutesProvider.get(BuiltinModule.scala:99)
at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
at com.google.inject.internal.BoundProviderFactory.provision(BoundProviderFactory.java:72)
at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:61)
at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:62)
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38)
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62)
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:110)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:90)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:268)
at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:56)
at com.google.inject.internal.SingleParameterInjector.inject(SingleParameterInjector.java:38)
at com.google.inject.internal.SingleParameterInjector.getAll(SingleParameterInjector.java:62)
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:110)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:90)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:268)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:194)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:56)
at com.google.inject.internal.InternalInjectorCreator$1.call(InternalInjectorCreator.java:205)
at com.google.inject.internal.InternalInjectorCreator$1.call(InternalInjectorCreator.java:199)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1085)
at com.google.inject.internal.InternalInjectorCreator.loadEagerSingletons(InternalInjectorCreator.java:199)
at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:180)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:110)
at com.google.inject.Guice.createInjector(Guice.java:99)
at com.google.inject.Guice.createInjector(Guice.java:84)
at play.api.inject.guice.GuiceBuilder.injector(GuiceInjectorBuilder.scala:185)
at play.api.inject.guice.GuiceApplicationBuilder.build(GuiceApplicationBuilder.scala:137)
at play.api.inject.guice.GuiceApplicationLoader.load(GuiceApplicationLoader.scala:21)
at play.core.server.ProdServerStart$.start(ProdServerStart.scala:51)
at play.core.server.ProdServerStart$.main(ProdServerStart.scala:25)
at play.core.server.ProdServerStart.main(ProdServerStart.scala)
Caused by: java.lang.NullPointerException
at com.couchbase.client.java.CouchbaseAsyncCluster.assembleSeedNodes(CouchbaseAsyncCluster.java:303)
at com.couchbase.client.java.CouchbaseAsyncCluster.(CouchbaseAsyncCluster.java:276)
at com.couchbase.client.java.CouchbaseCluster.(CouchbaseCluster.java:240)
at com.couchbase.client.java.CouchbaseCluster.create(CouchbaseCluster.java:197)
at com.couchbase.client.java.CouchbaseCluster.create(CouchbaseCluster.java:185)

... 63 more

Hi Durga,

Thanks for posting. Two questions:

  1. What is the value of the environment variable identified by Constants.COUCHBASE_URL? (Can you print it out to be certain?)
  2. What version of the Couchbase Java SDK are you using?

Thanks,
David