> Hi, > > this bug applies to the JDBC driver version 9.3-1102-jdbc41. It only happens when using a PGPoolingDataSource. The bug is in the proxy class for the Statement. Here’s some test code to provide evidence: > > <pre><code> > package cpssd.postgresql; > > import org.junit.Test; > import org.postgresql.ds.PGPoolingDataSource; > > import java.sql.Connection; > import java.sql.SQLException; > import java.sql.Statement; > > public class IsClosedIT { > > @Test(expected = SQLException.class) > public void testIsClosed() throws SQLException { > final PGPoolingDataSource ds = new PGPoolingDataSource(); > ds.setDatabaseName("postgres"); > try (Connection c = ds.getConnection()) { > Statement s = c.createStatement(); > s.close(); > // Throws SQLException: Statement has been closed. > assert s.isClosed(); > } > } > } > </code></pre> > > Regards, > Christian Schlichtherle