[jbossts-issues] [JBoss JIRA] (JBTM-2798) Connection.isClosed throws NullPointerException or returns false after close

[Mirko Streckenbach (JIRA)]

Mirko Streckenbach created JBTM-2798:
----------------------------------------

             Summary: Connection.isClosed throws NullPointerException or returns false after close
                 Key: JBTM-2798
                 URL: https://issues.jboss.org/browse/JBTM-2798
             Project: JBoss Transaction Manager
          Issue Type: Bug
    Affects Versions: 5.4.0.Final
            Reporter: Mirko Streckenbach


The following snippet fails with a NullPointerException:

{code}
Connection c = ConnectionManager.create(dbUrl, properties);
System.err.println("closed1=" + c.isClosed());
c.close();
System.err.println("closed2=" + c.isClosed());
{code}

output:

{code}
closed1=false
java.lang.NullPointerException
	at com.arjuna.ats.internal.jdbc.ConnectionImple.closeImpl(ConnectionImple.java:389)
	at com.arjuna.ats.internal.jdbc.ConnectionImple.close(ConnectionImple.java:381)
	at org.jboss.narayana.quickstarts.jta.Main.main(Main.java:140)
{code}

If it is modified to "use" the init the physical connect before closing, it will not throw an
exception, but returns false for isClosed after the close:

{code}
Connection c = ConnectionManager.create(dbUrl, properties);
System.err.println("closed1=" + c.isClosed());
c.createStatement().close();
System.err.println("closed2=" + c.isClosed());
c.close();
System.err.println("closed3=" + c.isClosed());
{code}

output:

{code}
closed1=false
closed2=false
closed3=false
{code}




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