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
addComboBox(composite, label, PREF_PB_POSSIBLE_ACCIDENTAL_BOOLEAN_ASSIGNMENT, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= PreferencesMessages.getString("CompilerConfigurationBlock.pb_unqualified_field_access.label"); 
		addComboBox(composite, label, PREF_PB_UNQUALIFIED_FIELD_ACCESS, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		
		label= PreferencesMessages.getString("CompilerConfigurationBlock.pb_finally_block_not_completing.label"); 
		addComboBox(composite, label, PREF_PB_FINALLY_BLOCK_NOT_COMPLETING, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= PreferencesMessages.getString("CompilerConfigurationBlock.pb_empty_statement.label"); 
		addComboBox(composite, label, PREF_PB_EMPTY_STATEMENT, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		label= PreferencesMessages.getString("CompilerConfigurationBlock.pb_undocumented_empty_block.label"); 
		addComboBox(composite, label, PREF_PB_UNDOCUMENTED_EMPTY_BLOCK, errorWarningIgnore, errorWarningIgnoreLabels, 0);
		
		return composite;
	}
	private Composite createAdvancedTabContent(TabFolder folder) {
		String[] errorWarningIgnore= new String[] { ERROR, WARNING, IGNORE };
		
		String[] errorWarningIgnoreLabels= new String[] {
			PreferencesMessages.getString("CompilerConfigurationBlock.error"),  
			PreferencesMessages.getString("CompilerConfigurationBlock.warning"), 
			PreferencesMessages.getString("CompilerConfigurationBlock.ignore") 
		};
		
		String[] enabledDisabled= new String[] { ENABLED, DISABLED };
		
		int nColumns= 3;
		
		GridLayout layout= new GridLayout();
		layout.numColumns= nColumns;
					
		Composite composite= new Composite(folder, SWT.NULL);