Bug 111139 Add FORMATTER_INSERT_SPACE_BEFORE_PARENTHESIZED_EXPRESSION_IN_RETURN to the code formatter preference page
This new option should be added in the whitespace section (control statements) of the code formatter preference page. It makes the insertion of a space after the return keyword optional when the following expression is a cast expression, a parenthesized expression, a string literal or prefix expression. For all other types of expressions, the insertion of a space is mandatory.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/formatter/WhiteSpaceOptions.java
}
    
    private static InnerNode createMethodDeclTree(Map workingValues, InnerNode parent) {
        final InnerNode root= new InnerNode(parent, workingValues, FormatterMessages.WhiteSpaceTabPage_methods); 
        
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_before_opening_paren, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_OPENING_PAREN_IN_METHOD_DECLARATION, METHOD_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_after_opening_paren, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_AFTER_OPENING_PAREN_IN_METHOD_DECLARATION, METHOD_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_before_closing_paren, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_CLOSING_PAREN_IN_METHOD_DECLARATION, METHOD_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_between_empty_parens, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BETWEEN_EMPTY_PARENS_IN_METHOD_DECLARATION, METHOD_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_before_opening_brace, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_OPENING_BRACE_IN_METHOD_DECLARATION, METHOD_DECL_PREVIEW); 
        
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_before_comma_in_params, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_COMMA_IN_METHOD_DECLARATION_PARAMETERS, METHOD_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_after_comma_in_params, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_AFTER_COMMA_IN_METHOD_DECLARATION_PARAMETERS, METHOD_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_before_ellipsis, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_ELLIPSIS, VARARG_PARAMETER_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_after_ellipsis, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_AFTER_ELLIPSIS, VARARG_PARAMETER_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_before_comma_in_throws, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_COMMA_IN_METHOD_DECLARATION_THROWS, METHOD_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_after_comma_in_throws, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_AFTER_COMMA_IN_METHOD_DECLARATION_THROWS, METHOD_DECL_PREVIEW); 
        
        return root;
    }
    
    private static InnerNode createConstructorTree(Map workingValues, InnerNode parent) {
        final InnerNode root= new InnerNode(parent, workingValues, FormatterMessages.WhiteSpaceTabPage_constructors); 
        
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_before_opening_paren, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_OPENING_PAREN_IN_CONSTRUCTOR_DECLARATION, CONSTRUCTOR_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_after_opening_paren, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_AFTER_OPENING_PAREN_IN_CONSTRUCTOR_DECLARATION, CONSTRUCTOR_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_before_closing_paren, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_CLOSING_PAREN_IN_CONSTRUCTOR_DECLARATION, CONSTRUCTOR_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_between_empty_parens, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BETWEEN_EMPTY_PARENS_IN_CONSTRUCTOR_DECLARATION, CONSTRUCTOR_DECL_PREVIEW); 
        createOption(root, workingValues, FormatterMessages.WhiteSpaceTabPage_before_opening_brace, DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_OPENING_BRACE_IN_CONSTRUCTOR_DECLARATION, CONSTRUCTOR_DECL_PREVIEW);