RAT-243: Add .checkstyle to default exclusions


git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/trunk@1812848 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/apache-rat-plugin/src/main/java/org/apache/rat/mp/util/ExclusionHelper.java b/apache-rat-plugin/src/main/java/org/apache/rat/mp/util/ExclusionHelper.java
index a1f7b6b..98c637c 100644
--- a/apache-rat-plugin/src/main/java/org/apache/rat/mp/util/ExclusionHelper.java
+++ b/apache-rat-plugin/src/main/java/org/apache/rat/mp/util/ExclusionHelper.java
@@ -50,7 +50,8 @@
      * The Eclipse specific default excludes.
      */
     static final List<String> ECLIPSE_DEFAULT_EXCLUDES = Collections
-            .unmodifiableList(Arrays.asList(".classpath",//
+            .unmodifiableList(Arrays.asList(".checkstyle",
+                    ".classpath",//
                     ".project", //
                     ".settings/**/*"));
 
diff --git a/apache-rat-plugin/src/test/java/org/apache/rat/mp/util/ExclusionHelperTest.java b/apache-rat-plugin/src/test/java/org/apache/rat/mp/util/ExclusionHelperTest.java
index 696ea62..db801b6 100644
--- a/apache-rat-plugin/src/test/java/org/apache/rat/mp/util/ExclusionHelperTest.java
+++ b/apache-rat-plugin/src/test/java/org/apache/rat/mp/util/ExclusionHelperTest.java
@@ -45,7 +45,7 @@
 
     @Test
     public void testNumberOfExclusions() {
-        assertEquals("Did you change the number of eclipse excludes?", 3,
+        assertEquals("Did you change the number of eclipse excludes?", 4,
                 ECLIPSE_DEFAULT_EXCLUDES.size());
         assertEquals("Did you change the number of idea excludes?", 4,
                 IDEA_DEFAULT_EXCLUDES.size());
@@ -59,9 +59,9 @@
         addEclipseDefaults(log, false, exclusion);
         assertTrue(exclusion.isEmpty());
         addEclipseDefaults(log, true, exclusion);
-        assertEquals(3, exclusion.size());
+        assertEquals(4, exclusion.size());
         addEclipseDefaults(log, true, exclusion);
-        assertEquals(3, exclusion.size());
+        assertEquals(4, exclusion.size());
     }
 
     @Test
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 046fd93..a4dab73 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -55,6 +55,9 @@
 
   <body>
     <release version="0.13" date="2017-xx-xx" description="Current SNAPSHOT - to be done">
+      <action issue="RAT-243" type="add" due-to="Matthew Ouyang" dev="pottlinger">
+	Add .checkstyle to Eclipse default exclusions.
+      </action>
       <action issue="RAT-241" type="add" due-to="Andrew Gaul" dev="pottlinger">
 	Reduce default log level of used exclusions to debug, only print totals into the maven log like includes.
       </action>