// simulate a split of the partition
log.info("DRMTestCase.testIsMasterReplica() - stopping GossipRouter");
router.clear(); // temporary workaround for JGRP-1232
router.stop();
sleepThread(15000);
log.info("router stopped, routing table = " + router.dumpRoutingTable() + ", partition1 view=" + partition1.getCurrentView().toString());
assertTrue("router is stopped", !router.isStarted());
assertTrue("router is NOT running", !router.isRunning());
// confirm that each partition contains one node
assertEquals("Partition1 should contain one node after split; ",