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via Oracle Community by ptony, 1 year ago
Error in allocating a connection. Cause: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource Error Code: 0
via manning.com by Unknown author, 2 years ago
Error in allocating a connection. Cause: Connection could not be allocated because: java.net.Connect Exception : Error connecting to server localhost on port 1527 with message Connection refused: connect. Error Code: 0
via GitHub by glassfishrobot
, 1 year ago
Error in allocating a connection. Cause: Connection could not be alloca ted because: java.security.PrivilegedActionException : Error opening socket to server localhost on port 1527 with message : nullError Code: 0
via Oracle Community by 807581, 1 year ago
Error in allocating a connection. Cause: Connection could not be allocated because: Communications link failure Last packet sent to the server was 0 ms ago.Error Code: 0
java.sql.SQLException: Error in allocating a connection. Cause: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource Error Code: 0 at oracle.toplink.essentials.exceptions.DatabaseException.sqlException(DatabaseException.java:305) at oracle.toplink.essentials.jndi.JNDIConnector.connect(JNDIConnector.java:150) at oracle.toplink.essentials.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:184) at oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:582) at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:280) at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:229) at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:93) at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:126)