[xmlunit/xmlunit] 9869c6: Fix NullPointerException in CompareMatcher and Val...

[GitHub <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/xmlunit/xmlunit
  Commit: 9869c6d8b58a6858f852f574cd791da544bb211f
      https://github.com/xmlunit/xmlunit/commit/9869c6d8b58a6858f852f574cd791da544bb211f
  Author: Stefan Bodewig <ste...@fr...>
  Date:   2016-04-08 (Fri, 08 Apr 2016)

  Changed paths:
    M RELEASE_NOTES.md
    M xmlunit-matchers/src/main/java/org/xmlunit/matchers/CompareMatcher.java
    M xmlunit-matchers/src/main/java/org/xmlunit/matchers/ValidationMatcher.java
    M xmlunit-matchers/src/test/java/org/xmlunit/matchers/CompareMatcherTest.java
    M xmlunit-matchers/src/test/java/org/xmlunit/matchers/EvaluateXPathMatcherTest.java
    M xmlunit-matchers/src/test/java/org/xmlunit/matchers/HasXPathMatcherTest.java
    M xmlunit-matchers/src/test/java/org/xmlunit/matchers/ValidationMatcherTest.java

  Log Message:
  -----------
  Fix NullPointerException in CompareMatcher and ValidationMatcher

`describeTo` assumed the matcher's `matches` method has been invoked
which is not true if combined in a `both` as second argument and the
first matcher failed.

fixes #81