java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at org.hibernate.ogm.test.mongodb.loading.LoadSelectedColumnsCollectionTest.getService(LoadSelectedColumnsCollectionTest.java:154)
at org.hibernate.ogm.test.mongodb.loading.LoadSelectedColumnsCollectionTest.testLoadSelectedColumns(LoadSelectedColumnsCollectionTest.java:71)
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 junit.framework.TestCase.runTest(TestCase.java:168)
at org.hibernate.ogm.test.simpleentity.OgmTestCase.runTest(OgmTestCase.java:197)
at org.hibernate.ogm.test.simpleentity.OgmTestCase.runBare(OgmTestCase.java:243)

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