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com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)	at com.mysql.jdbc.Util.handleNewInstance(Util.java:408)	at com.mysql.jdbc.Util.getInstance(Util.java:383)	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1023)	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:997)	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:983)	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:928)	at com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException(ConnectionImpl.java:1323)	at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.java:1315)	at com.mysql.jdbc.ConnectionImpl.prepareStatement(ConnectionImpl.java:4533)	at com.mysql.jdbc.ConnectionImpl.prepareStatement(ConnectionImpl.java:4498)	at sun.reflect.GeneratedMethodAccessor199.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at com.mchange.v2.c3p0.stmt.GooGooStatementCache$1StmtAcquireTask.run(GooGooStatementCache.java:546)	at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)