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Analyze HTML (also within PHP/Ruby/etc. templates) and JSP/JSF code.

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JSP expressions (using <%= ... %> have been deprecated because they:

  Are not unit testable.
  Are not reusable.
  Cannot make use of object oriented concepts such as inheritence.
  Have poor error handling capabilities: if an exception is thrown, an empty page is rended.
  Mix the business and presentation logic.



JSP Standard Tag Library (JSTL) and Expression Language should be used instead,
enabiling the adoption of the model-view-controller (MVC) design pattern
which reduces the coupling between the presentation tier and the business logic.


Noncompliant Code Example
<input type="text" name="foo" value="<%= request.getParameter("foo") %>" />


Compliant Solution
<input type="text" name="foo" value="${fn:escapeXml(param.foo)}" />