DefaultTableModel m1 = new DefaultTableModel(new Object[] {"C1", "C2",
"C3"}, 1);
harness.check(m1.findColumn("C1"), 0);
harness.check(m1.findColumn("C2"), 1);
harness.check(m1.findColumn("C3"), 2);
harness.check(m1.findColumn("C4"), -1);
boolean pass = false;
try
{
/* int index = */ m1.findColumn(null);