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Subject [Bug 53896] New: Optimized Jasper ELResolver
Date Wed, 19 Sep 2012 06:17:47 GMT

          Priority: P2
            Bug ID: 53896
           Summary: Optimized Jasper ELResolver
          Severity: normal
    Classification: Unclassified
                OS: Linux
          Hardware: PC
            Status: NEW
           Version: unspecified
         Component: Jasper
           Product: Tomcat 7

JspApplicationContextImpl sets up a CompositeELResolver with the standard and
application-specific EL resolvers. The CompositeELResolver implementation
basically just invokes every ELResolver in the list until a value is
successfully resolved. The issue is that in certain situations some ELResolvers
are called needlessly. For example, if base != null, calling getValue() on
ImplicitObjectELResolver is unnecessary. So there are cases in which certain
ELResolvers can be skipped over. In EL heavy applications skipping over certain
ELResolvers can quickly add up.

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