Jdbc call to oracle 11.1.0.7.0 db blocked

Question

The Jdbc call blocks and does not return back .. below is the stack trace

Oracle server = 11.1.0.7 Oracle thin driver used @ client

Would appreciate your help ....

at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.read(SocketInputStream.java:140)
        at oracle.net.ns.Packet.receive(Packet.java:240)
        at oracle.net.ns.DataPacket.receive(DataPacket.java:92)
        at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:172)
        at oracle.net.ns.NetInputStream.read(NetInputStream.java:117)
        at oracle.net.ns.NetInputStream.read(NetInputStream.java:92)
        at oracle.net.ns.NetInputStream.read(NetInputStream.java:77)
        at oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1034)
        at oracle.jdbc.driver.T4CMAREngine.unmarshalSB1(T4CMAREngine.java:1010)
        at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:588)
        at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:183)
        at oracle.jdbc.driver.T4CStatement.executeForDescribe(T4CStatement.java:780)
        at oracle.jdbc.driver.T4CStatement.executeMaybeDescribe(T4CStatement.java:855)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1186)
        at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1377)
 at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1186)
        at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1377)
        at oracle.jdbc.driver.OracleStatementWrapper.executeQuery(OracleStatementWrapper.java:387)
        at oracle.jdbc.driver.OracleDatabaseMetaData.getTypeInfo(OracleDatabaseMetaData.java:670)