I'm using Firebird 1.5.1 with Jaybird1.5.1.
On one of my customers(NT4-Server,Java1.4.2_05) i' ve seen the following errors in my log-files:

org.firebirdsql.jdbc.FBSQLException: GDS Exception. 335544327. invalid request handle
at org.firebirdsql.jdbc.AbstractPreparedStatement.internalExecute(AbstractPreparedStatement.java:483)
at org.firebirdsql.jdbc.AbstractPreparedStatement.executeQuery(AbstractPreparedStatement.java:109)
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.firebirdsql.pool.PooledPreparedStatementHandler.invoke(PooledPreparedStatementHandler.java:174)
at org.firebirdsql.pool.$Proxy1.executeQuery(Unknown Source)
at com.TTC_Informatik.PAULA.Tools.DB.DBPreisFinder.getAGPreisFuerRechnung(DBPreisFinder.java:680)
.
.
.
at org.firebirdsql.gds.GDSException: invalid request handle
at org.firebirdsql.jgds.GDS_Impl.readStatusVector(GDS_Impl.java:1761)
at org.firebirdsql.jgds.GDS_Impl.receiveResponse(GDS_Impl.java:1714)
at org.firebirdsql.jgds.GDS_Impl.isc_dsql_execute2(GDS_Impl.java:913)
at org.firebirdsql.jca.FBManagedConnection.executeStatement(FBManagedConnection.java:784)
at org.firebirdsql.jdbc.AbstractConnection.executeStatement(AbstractConnection.java:938)
at org.firebirdsql.jdbc.AbstractPreparedStatement.internalExecute(AbstractPreparedStatement.java:479)
at org.firebirdsql.jdbc.AbstractPreparedStatement.executeQuery(AbstractPreparedStatement.java:109)
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.firebirdsql.pool.PooledPreparedStatementHandler.invoke(PooledPreparedStatementHandler.java:174)
at org.firebirdsql.pool.$Proxy1.executeQuery(Unknown Source)
at com.TTC_Informatik.PAULA.Tools.DB.DBPreisFinder.getAGPreisFuerRechnung(DBPreisFinder.java:680)

org.firebirdsql.jdbc.FBSQLException: GDS Exception. 335544344. I/O error for file %.0s"write"
null
Error while trying to write to file
null
at org.firebirdsql.jdbc.AbstractPreparedStatement.internalExecute(AbstractPreparedStatement.java:483)
at org.firebirdsql.jdbc.AbstractPreparedStatement.executeQuery(AbstractPreparedStatement.java:109)
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.firebirdsql.pool.PooledPreparedStatementHandler.invoke(PooledPreparedStatementHandler.java:174)
at org.firebirdsql.pool.$Proxy1.executeQuery(Unknown Source)
at com.TTC_Informatik.PAULA.client.Liste.RechnungspositionenListe.generiereListe(RechnungspositionenListe.java:244)
.
.
.
at org.firebirdsql.gds.GDSException: I/O error for file %.0s"write"
null
Error while trying to write to file
null
at org.firebirdsql.jgds.GDS_Impl.readStatusVector(GDS_Impl.java:1761)
at org.firebirdsql.jgds.GDS_Impl.receiveResponse(GDS_Impl.java:1714)
at org.firebirdsql.jgds.GDS_Impl.isc_dsql_execute2(GDS_Impl.java:913)
at org.firebirdsql.jca.FBManagedConnection.executeStatement(FBManagedConnection.java:784)
at org.firebirdsql.jdbc.AbstractConnection.executeStatement(AbstractConnection.java:938)
at org.firebirdsql.jdbc.AbstractPreparedStatement.internalExecute(AbstractPreparedStatement.java:479)
at org.firebirdsql.jdbc.AbstractPreparedStatement.executeQuery(AbstractPreparedStatement.java:109)
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.firebirdsql.pool.PooledPreparedStatementHandler.invoke(PooledPreparedStatementHandler.java:174)
at org.firebirdsql.pool.$Proxy1.executeQuery(Unknown Source)
at com.TTC_Informatik.PAULA.client.Liste.RechnungspositionenListe.generiereListe(RechnungspositionenListe.java:244)

java.lang.NullPointerException
at org.firebirdsql.jgds.GDS_Impl.isc_start_transaction(GDS_Impl.java:542)
at org.firebirdsql.jca.FBManagedConnectionFactory.getCurrentIscTrHandle(FBManagedConnectionFactory.java:485)
at org.firebirdsql.jca.FBManagedConnection.findIscTrHandle(FBManagedConnection.java:1116)
at org.firebirdsql.jca.FBManagedConnection.internalStart(FBManagedConnection.java:673)
at org.firebirdsql.jca.FBLocalTransaction.internalBegin(FBLocalTransaction.java:111)
at org.firebirdsql.jca.FBLocalTransaction.begin(FBLocalTransaction.java:94)
at org.firebirdsql.jdbc.AbstractConnection.ensureInTransaction(AbstractConnection.java:830)
at org.firebirdsql.jdbc.AbstractStatement.executeQuery(AbstractStatement.java:155)
at org.firebirdsql.pool.PingablePooledConnection.ping(PingablePooledConnection.java:134)
at org.firebirdsql.pool.AbstractConnectionPool.getPooledConnection(AbstractConnectionPool.java:225)
at org.firebirdsql.pool.FBConnectionPoolDataSource.getPooledConnection(FBConnectionPoolDataSource.java:348)
at org.firebirdsql.pool.FBConnectionPoolDataSource.getPooledConnection(FBConnectionPoolDataSource.java:367)
at org.firebirdsql.pool.FBWrappingDataSource.getConnection(FBWrappingDataSource.java:203)
at com.TTC_Informatik.PAULA.server.App_Server.getConnection(App_Server.java:10175)

The lines im my code are normally working,
so what does these errors mean ?

mfg
Carsten









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