This was an intermittent error; all worked 10 sec before and 10 sec after.
What could have caused it?
in thread AWT-EventQueue-0 on Wed Sep 15 16:09:56 PDT 2010
org.hibernate.exception.GenericJDBCException: Cannot open connection
org.hibernate.exception.GenericJDBCException: Cannot open connection
at
org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126)
at
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114)
at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)
at
org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)
at
org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
at
org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
at
org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1577)
at org.hibernate.loader.Loader.doQuery(Loader.java:696)
at
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
at org.hibernate.loader.Loader.doList(Loader.java:2232)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2129)
at org.hibernate.loader.Loader.list(Loader.java:2124)
at
org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:312)
at
org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1723)
at
org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165)
at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:175)
......................
Caused by: org.h2.jdbc.JdbcSQLException: Connection is broken: "session
closed" [90067-131]
at
org.h2.message.DbException.getJdbcSQLException(DbException.java:316)
at org.h2.message.DbException.get(DbException.java:167)
at org.h2.message.DbException.get(DbException.java:144)
at org.h2.engine.SessionRemote.checkClosed(SessionRemote.java:447)
at org.h2.engine.SessionRemote.removeServer(SessionRemote.java:394)
at org.h2.command.CommandRemote.executeQuery(CommandRemote.java:169)
at
org.h2.jdbc.JdbcConnection.getInternalAutoCommit(JdbcConnection.java:395)
at org.h2.jdbc.JdbcConnection.getAutoCommit(JdbcConnection.java:387)
at
org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:127)
at
org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
... 48 more
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