Bind value [null] was not of specified type [class org.hibernate.type.StringType
java.lang.IllegalArgumentException: Bind value [null] was not of specified type [class org.hibernate.type.StringType
	at org.hibernate.procedure.internal.ParameterBindImpl.internalSetValue(ParameterBindImpl.java:83)
	at org.hibernate.procedure.internal.ParameterBindImpl.setBindValue(ParameterBindImpl.java:64)
	at org.hibernate.procedure.internal.ProcedureCallImpl.setParameter(ProcedureCallImpl.java:824)
	at org.hibernate.procedure.internal.ProcedureCallImpl.setParameter(ProcedureCallImpl.java:70)
	at org.hibernate.test.procedure.StoredProcedureParameterTypeTest.lambda$testStringTypeInParameterIsNull$31(StoredProcedureParameterTypeTest.java:370)
	at org.hibernate.testing.transaction.TransactionUtil2.inTransaction(TransactionUtil2.java:57)
	at org.hibernate.testing.transaction.TransactionUtil2.lambda$inTransaction$0(TransactionUtil2.java:44)
	at org.hibernate.testing.transaction.TransactionUtil2.inSession(TransactionUtil2.java:29)
	at org.hibernate.testing.transaction.TransactionUtil2.inTransaction(TransactionUtil2.java:41)
	at org.hibernate.testing.junit4.BaseNonConfigCoreFunctionalTestCase.inTransaction(BaseNonConfigCoreFunctionalTestCase.java:560)
	at org.hibernate.test.procedure.StoredProcedureParameterTypeTest.testStringTypeInParameterIsNull(StoredProcedureParameterTypeTest.java:366)
	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$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.hibernate.testing.junit4.ExtendedFrameworkMethod.invokeExplosively(ExtendedFrameworkMethod.java:45)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.lang.Thread.run(Thread.java:745)