java.sql.SQLException: Already closed.

gistfile1.txt

org.hibernate.exception.GenericJDBCException: Could not close connection
        at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.releaseConnection(LogicalConnectionImpl.java:327) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.close(LogicalConnectionImpl.java:199) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.close(JdbcCoordinatorImpl.java:141) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl.close(TransactionCoordinatorImpl.java:276) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.internal.SessionImpl.close(SessionImpl.java:352) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at com.yammer.dropwizard.hibernate.UnitOfWorkRequestDispatcher.dispatch(UnitOfWorkRequestDispatcher.java:50) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.io.nio.SslConnection.handle(SslConnection.java:196) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) [commerce-service-0.1.0-SNAPSHOT.jar:na]
        at java.lang.Thread.run(Thread.java:662) [na:1.6.0_29]
Caused by: java.sql.SQLException: Already closed.
        at org.apache.tomcat.dbcp.dbcp.PoolableConnection.close(PoolableConnection.java:114) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.apache.tomcat.dbcp.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.close(PoolingDataSource.java:191) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl.closeConnection(DatasourceConnectionProviderImpl.java:148) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.releaseConnection(AbstractSessionImpl.java:297) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.releaseConnection(LogicalConnectionImpl.java:323) ~[commerce-service-0.1.0-SNAPSHOT.jar:na]
        ... 48 common frames omitted