Issue #216: update to Checkstyle 8.30

Author: Calixte

net.sf.eclipsecs.checkstyle/.classpath

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry exported="true" kind="lib" path="checkstyle-8.29-all.jar" sourcepath="checkstyle-checkstyle-8.29.zip"/>
+	<classpathentry exported="true" kind="lib" path="checkstyle-8.30-all.jar" sourcepath="checkstyle-checkstyle-8.30.zip"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>

net.sf.eclipsecs.checkstyle/META-INF/MANIFEST.MF

@@ -46,5 +46,5 @@ Export-Package: .,
  com.puppycrawl.tools.checkstyle.utils,
  org.apache.commons.beanutils;version="8.29.0"
 Bundle-ClassPath: .,
- checkstyle-8.29-all.jar
+ checkstyle-8.30-all.jar
 Automatic-Module-Name: net.sf.eclipsecs.checkstyle

net.sf.eclipsecs.checkstyle/build.properties

@@ -1,6 +1,6 @@
 bin.includes = META-INF/,\
                .,\
                license/,\
-               checkstyle-8.29-all.jar
+               checkstyle-8.30-all.jar
 jars.compile.order = .
 source.. = metadata/

net.sf.eclipsecs.checkstyle/checkstyle-8.29-all.jar renamed to net.sf.eclipsecs.checkstyle/checkstyle-8.30-all.jar

@@ -86,6 +86,7 @@
             </property-metadata>
             <message-key key="noNewlineAtEOF"/>
             <message-key key="unable.open"/>
+            <message-key key="wrong.line.end"/>
         </rule-metadata>
 
         <rule-metadata name="%OrderedProperties.name" internal-name="OrderedProperties" parent="Checker">

net.sf.eclipsecs.checkstyle/checkstyle-checkstyle-8.29.zip renamed to net.sf.eclipsecs.checkstyle/checkstyle-checkstyle-8.30.zip

@@ -1,7 +1,9 @@
-
 ArrayTrailingComma.desc = Checks that array initialization contains a trailing comma.\r\n<pre>\r\nint[] a = new int[]\r\n{\r\n    1,\r\n    2,\r\n    3,\r\n};\r\n</pre>\r\nThe check allows to not add a comma if both left and right curlys are on the same line.\r\n<pre>\r\nreturn new int[] { 0 };\r\n</pre>\r\nRationale: Putting this comma in makes it easier to change the order of the elements or add new elements on the end.
 ArrayTrailingComma.name = Trailing Array Comma
 
+AvoidDoubleBraceInitialization.desc = Detects double brace initialization.
+AvoidDoubleBraceInitialization.name = Avoid Double Brace Initialization
+
 AvoidInlineConditionals.desc = Detects inline conditionals. An example inline conditional is this:\r\n<pre>\r\nString a = getParameter("a");\r\nString b = (a==null || a.length<1) ? null : a.substring(1);\r\n</pre>\r\nRationale: Some developers find inline conditionals hard to read, so their company's coding standards forbids them.
 AvoidInlineConditionals.name = Avoid Inline Conditionals
 

net.sf.eclipsecs.checkstyle/metadata/com/puppycrawl/tools/checkstyle/checks/checkstyle-metadata.xml

@@ -5,6 +5,13 @@
 <checkstyle-metadata>
     <rule-group-metadata name="%Coding.group" priority="900">
 
+        <rule-metadata name="%AvoidDoubleBraceInitialization.name" internal-name="AvoidDoubleBraceInitialization"
+            parent="TreeWalker">
+            <alternative-name internal-name="com.puppycrawl.tools.checkstyle.checks.coding.AvoidDoubleBraceInitializationCheck" />
+            <description>%AvoidDoubleBraceInitialization.desc</description>
+            <message-key key="avoid.double.brace.init" />
+        </rule-metadata>
+
         <rule-metadata name="%AvoidInlineConditionals.name" internal-name="AvoidInlineConditionals"
             parent="TreeWalker">
             <alternative-name internal-name="com.puppycrawl.tools.checkstyle.checks.coding.AvoidInlineConditionalsCheck" />