@Test
	public void testToggleBreakpoint() throws Exception {
		try (JshellAndConnection conn = startAndConnectJshell()) {
			start(conn, "HelloWorld.class");

			RemoteMethod refreshBreakpoints = conn.getMethod("refresh_breakpoints");
			RemoteMethod toggleBreakpoint = conn.getMethod("toggle_breakpoint");
			RemoteMethod stepInto = conn.getMethod("step_into");
			try (ManagedDomainObject mdo = openDomainObject("/New Traces/HelloWorld.class")) {
				tb = new ToyDBTraceBuilder((Trace) mdo.get());
				txPut(conn, "Threads");

				TraceObject thread = waitForObject("VMs[].Threads[main]");
				stepInto.invoke(Map.of("thread", thread));
				waitTxDone();

				conn.execute("VirtualMachine vm = manager.getCurrentVM();");
				conn.execute("Location loc = manager.getCurrentLocation();");
				conn.execute(
					"BreakpointRequest brkReq = vm.eventRequestManager().createBreakpointRequest(loc);");

				TraceObject brkPts = waitForObject("VMs[].Breakpoints");
				List<TraceObjectValue> descs = waitForPass(() -> {
					refreshBreakpoints.invoke(Map.of("container", brkPts));
					List<TraceObjectValue> d = waitForValues("VMs[].Breakpoints[]._display");
					assertEquals(1, d.size());
					return d;
				});

				assertTrue(descs.get(0).getValue().toString().contains("breakpoint request"));
				assertTrue(descs.get(0).getValue().toString().contains("disabled"));

				TraceObject brk = waitForObject("VMs[].Breakpoints[]");
				toggleBreakpoint.invoke(Map.of("breakpoint", brk));

				refreshBreakpoints.invoke(Map.of("container", brkPts));
				descs = waitForValues("VMs[].Breakpoints[]._display");
				assertTrue(descs.get(0).getValue().toString().contains("enabled"));
			}
		}
	}
NOTE: If using break_load_container, you'd need to follow with set_source_filter
using "HelloWorld*". I still haven't looked far enough to figure out what the exact
match should be. (It's not "HelloWorld", but maybe it's "HelloWorld.class". I've just
switched over to break_enter_container, instead.
Ghidra/Test/DebuggerIntegrationTest/src/test.slow/java/agent/java/rmi/JavaMethodsTest.java