Bug 63883 Cannot configure option for enabling/disabling exclusion filters or custom output folders on a per project basis
Build M9 JDT/Core supports setting enablement for exclusion patterns and custom output folders on a per project basis. This isn't surfaced in the UI. There is only a global flag in workspace preferences.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CompilerConfigurationBlock.java
item= new TabItem(folder, SWT.NONE);
		item.setText(PreferencesMessages.getString("CompilerConfigurationBlock.javadoc.tabtitle")); 
		item.setControl(javadocComposite);
	
		item= new TabItem(folder, SWT.NONE);
		item.setText(PreferencesMessages.getString("CompilerConfigurationBlock.compliance.tabtitle")); 
		item.setControl(complianceComposite);
		
		item= new TabItem(folder, SWT.NONE);
		item.setText(PreferencesMessages.getString("CompilerConfigurationBlock.others.tabtitle")); 
		item.setControl(othersComposite);		
		
		if (JavaModelUtil.isJDTCore_1_5()) {
			Composite extraComposite= create15TabContent(folder);
			
			item= new TabItem(folder, SWT.NONE);
			item.setText(PreferencesMessages.getString("CompilerConfigurationBlock.15.tabtitle")); 
			item.setControl(extraComposite);		
		}
		
		validateSettings(null, null);
	
		return folder;
	}
	private Composite createStyleTabContent(Composite folder) {
		String[] errorWarningIgnore= new String[] { ERROR, WARNING, IGNORE };
		
		String[] errorWarningIgnoreLabels= new String[] {
			PreferencesMessages.getString("CompilerConfigurationBlock.error"),