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
private Composite createComplianceTabContent(Composite folder) {
		GridLayout layout= new GridLayout();
		layout.numColumns= 1;
		String[] values34, values34Labels;
		if (JavaModelUtil.isJDTCore_1_5()) {
			values34= new String[] { VERSION_1_3, VERSION_1_4, VERSION_1_5 };
			values34Labels= new String[] {
				PreferencesMessages.getString("CompilerConfigurationBlock.version13"),  
				PreferencesMessages.getString("CompilerConfigurationBlock.version14"), 
				PreferencesMessages.getString("CompilerConfigurationBlock.version15") 
			};
		} else {
			values34= new String[] { VERSION_1_3, VERSION_1_4 };
			values34Labels= new String[] {
				PreferencesMessages.getString("CompilerConfigurationBlock.version13"),  
				PreferencesMessages.getString("CompilerConfigurationBlock.version14") 
			};
		}
		Composite compComposite= new Composite(folder, SWT.NULL);
		compComposite.setLayout(layout);
		int nColumns= 3;
		layout= new GridLayout();
		layout.numColumns= nColumns;
		Group group= new Group(compComposite, SWT.NONE);
		group.setText(PreferencesMessages.getString("CompilerConfigurationBlock.compliance.group.label")); 
		group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		group.setLayout(layout);
	
		String label= PreferencesMessages.getString("CompilerConfigurationBlock.compiler_compliance.label");