@Test(expected = IllegalStateException.class)
	public void testCreate2ndRootErr() {
		try (Transaction tx = b.startTransaction()) {
			manager.createRootObject(ctx.getSchema(new SchemaName("Session")));
			manager.createRootObject(ctx.getSchema(new SchemaName("Session")));
		}
	}
Fails because you cannot create a second root object.
Ghidra/Debug/Framework-TraceModeling/src/test/java/ghidra/trace/database/target/DBTraceObjectManagerTest.java