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java.lang.IllegalStateException: 	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1743)	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1701)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:264)	at com.mysql.jdbc.Util.getInstance(Util.java:381)	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1095)	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2031)	at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:718)	at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:46)	at sun.reflect.GeneratedConstructorAccessor125.newInstance(Unknown Source)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)	at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282)	at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:135)	at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)	at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)	at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)	at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)	at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)	at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)	at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)