r = tt.get(t2, g);
assertEquals("Unexpected size for read.", 1, r.size());
assertTrue("Unexpected value for read: " + Bytes.toString(r.getValue(fam, col)),
Bytes.equals(data2, r.getValue(fam, col)));
tm.tryCommit(t1);
boolean aborted = false;
try {
tm.tryCommit(t2);
assertTrue("Transaction commited successfully", false);