java.lang.UnsupportedOperationException: The application must supply JDBC connections
?? ?at org.hibernate.service.jdbc.connections.internal.UserSuppliedConnectionProviderImpl.getConnection(UserSuppliedConnectionProviderImpl.java:62)
?? ?at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:292)
?? ?at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:214)
?? ?at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:157)
?? ?at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doBegin(JdbcTransaction.java:67)
?? ?at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.begin(AbstractTransactionImpl.java:160)
?? ?at org.hibernate.internal.SessionImpl.beginTransaction(SessionImpl.java:1426)
?? ?at StudentsTest.init(StudentsTest.java:35)
?? ?at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
?? ?at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
?? ?at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
?? ?at java.lang.reflect.Method.invoke(Method.java:498)
?? ?at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
?? ?at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
?? ?at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
?? ?at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
?? ?at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
?? ?at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
?? ?at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
?? ?at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
?? ?at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
?? ?at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
?? ?at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
?? ?at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
?? ?at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
?? ?at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
?? ?at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
?? ?at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
?? ?at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
?? ?at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
?? ?at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
?? ?at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

java.lang.NullPointerException
?? ?at StudentsTest.destroy(StudentsTest.java:39)
?? ?at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
?? ?at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
?? ?at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
?? ?at java.lang.reflect.Method.invoke(Method.java:498)
?? ?at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
?? ?at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
?? ?at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
?? ?at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:36)
?? ?at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
?? ?at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
?? ?at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
?? ?at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
?? ?at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
?? ?at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
?? ?at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
?? ?at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
?? ?at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
?? ?at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
?? ?at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
?? ?at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
?? ?at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
?? ?at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
?? ?at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)