I am getting this exception, please help me.
SO: Windows 98 version 4.10.2222
FB: 1.5.1
(I tried to get the connection without the pool and the exception still
comes)

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org.firebirdsql.jdbc.FBSQLException: Resource Exception. No message for
code 335544352 found.
null
null
null
Reason: No message for code 335544352 found.
null
null
null
at
org.firebirdsql.pool.FBConnectionPoolDataSource.allocateConnection(FBConnectionPoolDataSource.java:185)
at
org.firebirdsql.pool.PooledConnectionQueue.addConnection(PooledConnectionQueue.java:403)
at
org.firebirdsql.pool.PooledConnectionQueue.start(PooledConnectionQueue.java:156)
at
org.firebirdsql.pool.AbstractConnectionPool.getQueue(AbstractConnectionPool.java:182)
at
org.firebirdsql.pool.FBConnectionPoolDataSource.getPooledConnection(FBConnectionPoolDataSource.java:251)
at
org.firebirdsql.pool.FBWrappingDataSource.getConnection(FBWrappingDataSource.java:127)
at br.com.lib.TDB.getCon(TDB.java:128)
at br.com.modulos.conhecimentos.<init>(conhecimentos.java:70)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown
Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at br.com.main.SigetFrame.setExecutarJanelas(SigetFrame.java:733)
at br.com.main.SigetFrame.<init>(SigetFrame.java:165)
at br.com.main.Main.main(Main.java:29)
at org.firebirdsql.gds.GDSException: No message for code 335544352 found.
null
null
null
at org.firebirdsql.jgds.GDS_Impl.readStatusVector(GDS_Impl.java:1759)
at org.firebirdsql.jgds.GDS_Impl.receiveResponse(GDS_Impl.java:1712)
at org.firebirdsql.jgds.GDS_Impl.isc_attach_database(GDS_Impl.java:297)
at org.firebirdsql.jgds.GDS_Impl.isc_attach_database(GDS_Impl.java:259)
at
org.firebirdsql.jca.FBManagedConnectionFactory.createDbHandle(FBManagedConnectionFactory.java:540)
at
org.firebirdsql.jca.FBManagedConnection.<init>(FBManagedConnection.java:88)
at
org.firebirdsql.jca.FBManagedConnectionFactory.createManagedConnection(FBManagedConnectionFactory.java:366)
at
org.firebirdsql.pool.FBConnectionPoolDataSource.allocateConnection(FBConnectionPoolDataSource.java:158)
at
org.firebirdsql.pool.PooledConnectionQueue.addConnection(PooledConnectionQueue.java:403)
at
org.firebirdsql.pool.PooledConnectionQueue.start(PooledConnectionQueue.java:156)
at
org.firebirdsql.pool.AbstractConnectionPool.getQueue(AbstractConnectionPool.java:182)
at
org.firebirdsql.pool.FBConnectionPoolDataSource.getPooledConnection(FBConnectionPoolDataSource.java:251)
at
org.firebirdsql.pool.FBWrappingDataSource.getConnection(FBWrappingDataSource.java:127)
at br.com.lib.TDB.getCon(TDB.java:128)
at br.com.modulos.conhecimentos.<init>(conhecimentos.java:70)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown
Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at br.com.main.SigetFrame.setExecutarJanelas(SigetFrame.java:733)
at br.com.main.SigetFrame.<init>(SigetFrame.java:165)
at br.com.main.Main.main(Main.java:29)
java.lang.NullPointerException
at br.com.modulos.conhecimentos.getConhecimentos(conhecimentos.java:556)
at br.com.modulos.conhecimentos.setAmbiente(conhecimentos.java:687)
at br.com.modulos.conhecimentos.<init>(conhecimentos.java:137)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown
Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at br.com.main.SigetFrame.setExecutarJanelas(SigetFrame.java:733)
at br.com.main.SigetFrame.<init>(SigetFrame.java:165)
at br.com.main.Main.main(Main.java:29)