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Unused code easy to remove on StrutsRequestWrapper
--------------------------------------------------

                 Key: WW-1959
                 URL: https://issues.apache.org/struts/browse/WW-1959
             Project: Struts 2
          Issue Type: Improvement
          Components: Dispatch
    Affects Versions: 2.0.7, 2.0.6, 2.0.5, 2.0.4, 2.0.3, 2.0.2, 2.0.1, 2.0.0, 2.0.8, 2.0.9,
2.1.0, 2.1.x, Future
            Reporter: Mike Baroukh
            Priority: Trivial


in StrutsRequestWrapper, we can see :

ActionContext ctx = ActionContext.getContext();
        Object attribute = super.getAttribute(s);

        boolean alreadyIn = false;
        Boolean b = (Boolean) ctx.get("__requestWrapper.getAttribute");
        if (b != null) {
            alreadyIn = b.booleanValue();
        }

        // note: we don't let # come through or else a request for
        // #attr.foo or #request.foo could cause an endless loop
        if (!alreadyIn && attribute == null && s.indexOf("#") == -1) {
            try {
                // If not found, then try the ValueStack
                ctx.put("__requestWrapper.getAttribute", Boolean.TRUE);
                ValueStack stack = ctx.getValueStack();
                if (stack != null) {
                    attribute = stack.findValue(s);
                }
            } finally {
                ctx.put("__requestWrapper.getAttribute", Boolean.FALSE);
            }
        }
        return attribute;
}


so the bloc
boolean alreadyIn = false;
Boolean b = (Boolean) ctx.get("__requestWrapper.getAttribute");
if (b != null) {
      alreadyIn = b.booleanValue();
}


is not used if attribute isn't null.
So I propose to replace with


Object attribute = super.getAttribute(s);
if (attribute==null) {
        Boolean b = (Boolean) ctx.get("__requestWrapper.getAttribute");

        // note: we don't let # come through or else a request for
        // #attr.foo or #request.foo could cause an endless loop
        if ( (!Boolean.TRUE.equals(b) && attribute == null && s.indexOf("#")
== -1) {
            try {
                // If not found, then try the ValueStack



I know it's a small enhancement, but getAttribute() is called a lot and all calls cumulated
can improve significantly ...

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