Bug 23968 Abusive check on task tags
2.1M1 Java UI ensures that task tags are valid Java identifiers. Why is it so ? JDT/Core supports any type of tags. In particular, "TODO:" should work fine, and was one of the mentionned tags on the original feature request.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CompilerPreferencePage.java
}
	/**
	 * @see PreferencePage#createControl(Composite)
	 */
	public void createControl(Composite parent) {
		
		super.createControl(parent);
		WorkbenchHelp.setHelp(getControl(), IJavaHelpContextIds.COMPILER_PREFERENCE_PAGE);
	}	
	/**
	 * @see PreferencePage#createContents(Composite)
	 */
	protected Control createContents(Composite parent) {
		initializeDialogUnits(parent);
		
		TabFolder folder= new TabFolder(parent, SWT.NONE);
		folder.setLayout(new TabFolderLayout());	
		folder.setLayoutData(new GridData(GridData.FILL_BOTH));
		
		Composite warningsComposite= createWarningsTabContent(folder);
		Composite markersComposite= createMarkersTabContent(folder);
		Composite codeGenComposite= createCodeGenTabContent(folder);
		Composite complianceComposite= createComplianceTabContent(folder);
		Composite othersComposite= createOthersTabContent(folder);
		TabItem item= new TabItem(folder, SWT.NONE);
		item.setText(JavaUIMessages.getString("CompilerPreferencePage.warnings.tabtitle")); 
		item.setControl(warningsComposite);
		item= new TabItem(folder, SWT.NONE);
		item.setText(JavaUIMessages.getString("CompilerPreferencePage.markers.tabtitle")); 
		item.setControl(markersComposite);