Fix connection leaks in hibernate-testing connection provider delegates

Author: beikov

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

@@ -472,7 +472,9 @@ protected void closeConnection(Connection conn, Throwable t) {
 				}
 			}
 			finally {
-				allConnections.remove( conn );
+				if ( !allConnections.remove( conn ) ) {
+					ConnectionInfoLogger.INSTANCE.debug( "Connection remove failed." );
+				}
 			}
 		}
 

hibernate-testing/src/main/java/org/hibernate/testing/jta/JtaAwareConnectionProviderImpl.java

@@ -214,7 +214,7 @@ private void delist(Connection connection) {
 			System.err.println( "!!!Error trying to reset synchronization registry!!!" );
 		}
 		try {
-			delegate.closeConnection( connection );
+			delegate.closeConnection( ((ConnectionWrapper) connection).delegate );
 		}
 		catch (SQLException e) {
 			System.err.println( "!!!Error trying to close JDBC connection from delist callbacks!!!" );