@Override
	protected boolean propertyChanged(String propertyName, Object oldValue, Object newValue) {
		if (propertyName.equals(PREFERRED_ROOT_NAMESPACE_CATEGORY_PROPERTY_PATHNAME)) {
			String path = (String) newValue;
			if (!updatePreferredRootNamespaceCategory(path)) {
				return false;
			}
		}
		super.propertyChanged(propertyName, oldValue, newValue);
		return true;
	}
Initialize program compiler specification.
During a language upgrade this will provide a temporary spec until setLanguage is complete.
@throws CompilerSpecNotFoundException if the compiler spec cannot be found
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/ProgramDB.java