[xmlunit/xmlunit] 3dcee8: Improve code quality

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

  Branch: refs/heads/master
  Home:   https://github.com/xmlunit/xmlunit
  Commit: 3dcee83175657606a6edd9fb333041d8ec7ca859
      https://github.com/xmlunit/xmlunit/commit/3dcee83175657606a6edd9fb333041d8ec7ca859
  Author: Krystian Kałużny <k.k...@gm...>
  Date:   2018-10-03 (Wed, 03 Oct 2018)

  Changed paths:
    M xmlunit-assertj/src/main/java/org/xmlunit/assertj/AssertionsAdapter.java
    M xmlunit-assertj/src/main/java/org/xmlunit/assertj/SingleNodeAssert.java
    M xmlunit-assertj/src/main/java/org/xmlunit/assertj/error/ComparisonFailureErrorFactory.java
    M xmlunit-core/src/main/java/org/xmlunit/diff/ElementSelectors.java
    M xmlunit-matchers/src/main/java/org/xmlunit/matchers/CompareMatcher.java

  Log Message:
  -----------
  Improve code quality

* squid:S1125, squid:S1659, squid:S1118, squid:S2696, squid:S3457



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