Issue checkstyle#273: Launch/Diff Groovy should remove use of maven-checkstyle-plugin

Author: nrmancuso

checkstyle-tester/pom.xml

@@ -16,8 +16,9 @@
 		<sevntu-checkstyle.version>1.38.0</sevntu-checkstyle.version>
 		<jxr-plugin.version>2.5</jxr-plugin.version>
 		<checkstyle.config.location>https://raw.githubusercontent.com/checkstyle/checkstyle/master/src/main/resources/google_checks.xml</checkstyle.config.location>
-		<checkstyle.failsOnError>true</checkstyle.failsOnError>
-	</properties>
+		<checkstyle.failsOnError>false</checkstyle.failsOnError>
+        <jxr-plugin.exclude>DOESNTEXISTEXCLUDE</jxr-plugin.exclude>
+    </properties>
 
 	<build>
 		<plugins>