07-06 14:38:37.280  26105-26114/com.example.kash.postgresql E/System﹕ Uncaught exception thrown by finalizer
07-06 14:38:37.280  26105-26114/com.example.kash.postgresql E/System﹕ java.lang.NullPointerException: Attempt to invoke interface method 'void org.postgresql.core.ProtocolConnection.close()' on a null object reference
            at org.postgresql.jdbc2.AbstractJdbc2Connection.close(AbstractJdbc2Connection.java:666)
            at org.postgresql.jdbc2.AbstractJdbc2Connection.finalize(AbstractJdbc2Connection.java:1025)
            at java.lang.Daemons$FinalizerDaemon.doFinalize(Daemons.java:191)
            at java.lang.Daemons$FinalizerDaemon.run(Daemons.java:174)
            at java.lang.Thread.run(Thread.java:818)