Bug 82231 [build path] Hard to find type restriction compiler problem preferences
I20050104-1600 There compiler preference page contains a Warning/Error node with many sub-entries . I tried to find where I could change the 'warning' for the access of internal types to 'error'. No luck until I realized that the Build node also contains Warning/Error settings.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/ProblemSeveritiesPreferencePage.java
}
	/*
	 * @see org.eclipse.jface.preference.IPreferencePage#performOk()
	 */
	public boolean performOk() {
		if (fConfigurationBlock != null && !fConfigurationBlock.performOk()) {
			return false;
		}	
		return super.performOk();
	}
	
	/*
	 * @see org.eclipse.jface.preference.IPreferencePage#performApply()
	 */
	public void performApply() {
		if (fConfigurationBlock != null) {
			fConfigurationBlock.performApply();
		}
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.jdt.internal.ui.preferences.PropertyAndPreferencePage#setElement(org.eclipse.core.runtime.IAdaptable)
	 */
	public void setElement(IAdaptable element) {
		super.setElement(element);
		setDescription(null); 
	}
	
}