@Test
	public void testGetRoot() {
		assertNull(manager.getRootObject());
		assertNull(manager.getRootSchema());
		TraceObjectValue value;
		try (Transaction tx = b.startTransaction()) {
			value = manager.createRootObject(ctx.getSchema(new SchemaName("Session")));
		}
		assertEquals(value.getValue(), manager.getRootObject());
		assertNotNull(manager.getRootSchema());
	}
Fails because you cannot create a second root object.
Ghidra/Debug/Framework-TraceModeling/src/test/java/ghidra/trace/database/target/DBTraceObjectManagerTest.java