question: public Expression inlineValue ( Environment env , Context ctx ) { if ( type == Type . tString && isConstant ( ) ) { StringBuffer buffer = inlineValueSB ( env , ctx , new StringBuffer ( ) ) ; if ( buffer != null ) { return new StringExpression ( where , buffer . toString ( ) ) ; } } return super . inlineValue ( env , ctx ) ; }
target:  Inline the value of an AddExpression.  If this AddExpression represents a concatenation of compile-time constant strings, dispatch to the special method inlineValueSB, which handles the inlining more efficiently.