private static String getStaticStringFieldValue(Class<?> clazz, String fieldName) {
		try {
			Field field = clazz.getField(fieldName);
			return (String) field.get(null);
		}
		catch (NoSuchFieldException ex) {
			// ignore
		}
		catch (IllegalAccessException ex) {
			throw new AssertException(
				"default provider class for " + clazz.getName() + " is not declared to be public!");
		}
		return null;
	}
Returns the Class for a Plugin, by class name.

@param pluginClassName String class name
@return Class that is a Plugin, never null.
@throws PluginException if specified class does not exist or is not a Plugin.
Ghidra/Framework/Project/src/main/java/ghidra/framework/plugintool/util/PluginUtils.java