HHH-10772 - RuntimeException during releaseStatements causes JDBC connection not to be closed

hibernate-core/src/main/java/org/hibernate/engine/jdbc/internal/JdbcCoordinatorImpl.java

@@ -171,12 +171,18 @@ public class JdbcCoordinatorImpl implements JdbcCoordinator {
 	@Override
 	public Connection close() {
 		LOG.tracev( "Closing JDBC container [{0}]", this );
-		if ( currentBatch != null ) {
-			LOG.closingUnreleasedBatch();
-			currentBatch.release();
+		Connection connection;
+		try {
+			if ( currentBatch != null ) {
+				LOG.closingUnreleasedBatch();
+				currentBatch.release();
+			}
+			cleanup();
 		}
-		cleanup();
-		return logicalConnection.close();
+		finally {
+			connection = logicalConnection.close();
+		}
+		return connection;
 	}
 
 	@Override

hibernate-core/src/test/java/org/hibernate/engine/jdbc/internal/JdbcCoordinatorTest.java

@@ -0,0 +1,92 @@
+package org.hibernate.engine.jdbc.internal;
+
+import java.lang.reflect.Field;
+import java.sql.Connection;
+import java.sql.SQLException;
+
+import org.hibernate.engine.jdbc.batch.spi.Batch;
+import org.hibernate.engine.jdbc.connections.spi.JdbcConnectionAccess;
+import org.hibernate.engine.jdbc.spi.JdbcServices;
+import org.hibernate.engine.jdbc.spi.SqlExceptionHelper;
+import org.hibernate.resource.jdbc.spi.JdbcObserver;
+import org.hibernate.resource.jdbc.spi.JdbcSessionContext;
+import org.hibernate.resource.jdbc.spi.JdbcSessionOwner;
+import org.hibernate.resource.jdbc.spi.PhysicalConnectionHandlingMode;
+import org.hibernate.service.ServiceRegistry;
+
+import org.junit.Test;
+
+import org.mockito.Mockito;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Matchers.same;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+/**
+ * @author Vlad Mihalcea
+ */
+public class JdbcCoordinatorTest {
+
+	@Test
+	public void testConnectionClose()
+			throws NoSuchFieldException, IllegalAccessException, SQLException {
+		Connection connection = Mockito.mock( Connection.class );
+
+		JdbcSessionOwner sessionOwner = Mockito.mock( JdbcSessionOwner.class );
+
+		JdbcConnectionAccess jdbcConnectionAccess = Mockito.mock(
+				JdbcConnectionAccess.class );
+		when( jdbcConnectionAccess.obtainConnection() ).thenReturn( connection );
+		when( jdbcConnectionAccess.supportsAggressiveRelease() ).thenReturn(
+				false );
+
+		JdbcSessionContext sessionContext = Mockito.mock( JdbcSessionContext.class );
+		when( sessionOwner.getJdbcSessionContext() ).thenReturn( sessionContext );
+		when( sessionOwner.getJdbcConnectionAccess() ).thenReturn(
+				jdbcConnectionAccess );
+
+		ServiceRegistry serviceRegistry = Mockito.mock( ServiceRegistry.class );
+		when( sessionContext.getServiceRegistry() ).thenReturn( serviceRegistry );
+		when( sessionContext.getPhysicalConnectionHandlingMode() ).thenReturn(
+				PhysicalConnectionHandlingMode.IMMEDIATE_ACQUISITION_AND_HOLD );
+
+		JdbcObserver jdbcObserver = Mockito.mock( JdbcObserver.class );
+		when( sessionContext.getObserver() ).thenReturn( jdbcObserver );
+
+		JdbcServices jdbcServices = Mockito.mock( JdbcServices.class );
+		when( serviceRegistry.getService( eq( JdbcServices.class ) ) ).thenReturn(
+				jdbcServices );
+
+		SqlExceptionHelper sqlExceptionHelper = Mockito.mock( SqlExceptionHelper.class );
+		when( jdbcServices.getSqlExceptionHelper() ).thenReturn(
+				sqlExceptionHelper );
+
+		JdbcCoordinatorImpl jdbcCoordinator = new JdbcCoordinatorImpl(
+				null,
+				sessionOwner
+		);
+
+		Batch currentBatch = Mockito.mock( Batch.class );
+		Field currentBatchField = JdbcCoordinatorImpl.class.getDeclaredField(
+				"currentBatch" );
+		currentBatchField.setAccessible( true );
+		currentBatchField.set( jdbcCoordinator, currentBatch );
+
+		doThrow( IllegalStateException.class ).when( currentBatch ).release();
+
+		try {
+			jdbcCoordinator.close();
+			fail( "Should throw IllegalStateException" );
+		}
+		catch (Exception expected) {
+			assertEquals( IllegalStateException.class, expected.getClass() );
+		}
+		verify( jdbcConnectionAccess, times( 1 ) ).releaseConnection( same(
+				connection ) );
+	}
+}