Method checkThread

src/main/java/field/graphics/Windows.java:383–388

()

	}

	private void checkClassLoader() {
		ClassLoader c = Thread.currentThread()
			.getContextClassLoader();
		if (c != mainClassLoader) {
			Log.log("startup.debug", () -> "had to change classloader from <" + c + "- >" + mainClassLoader);
			Thread.currentThread()
				.setContextClassLoader(mainClassLoader);
		}