fixed issues reported by Checkstyle
diff --git a/maven-scm-api/src/main/java/org/apache/maven/scm/command/checkout/AbstractCheckOutCommand.java b/maven-scm-api/src/main/java/org/apache/maven/scm/command/checkout/AbstractCheckOutCommand.java
index 56fb77c..56d35c8 100644
--- a/maven-scm-api/src/main/java/org/apache/maven/scm/command/checkout/AbstractCheckOutCommand.java
+++ b/maven-scm-api/src/main/java/org/apache/maven/scm/command/checkout/AbstractCheckOutCommand.java
@@ -79,6 +79,6 @@
         ScmVersion scmVersion = parameters.getScmVersion( CommandParameter.SCM_VERSION, null );
         boolean recursive = parameters.getBoolean( CommandParameter.RECURSIVE, true );
         boolean shallow = parameters.getBoolean( CommandParameter.SHALLOW, false );
-        return executeCheckOutCommand( repository, fileSet, scmVersion, recursive, shallow);
+        return executeCheckOutCommand( repository, fileSet, scmVersion, recursive, shallow );
     }
 }
diff --git a/maven-scm-api/src/main/java/org/apache/maven/scm/provider/ScmProvider.java b/maven-scm-api/src/main/java/org/apache/maven/scm/provider/ScmProvider.java
index a698f5a..a2d005f 100644
--- a/maven-scm-api/src/main/java/org/apache/maven/scm/provider/ScmProvider.java
+++ b/maven-scm-api/src/main/java/org/apache/maven/scm/provider/ScmProvider.java
@@ -496,7 +496,8 @@
      * Create a copy of the repository on your local machine.
      *
      * @param scmRepository     the source control system
-     * @param scmFileSet        the files are copied to the {@link org.apache.maven.scm.ScmFileSet#getBasedir()} location
+     * @param scmFileSet        the files are copied to the {@link org.apache.maven.scm.ScmFileSet#getBasedir()}
+     *                          location
      * @param version           get the version defined by the revision, branch or tag
      * @param commandParameters parameters
      * @return
diff --git a/maven-scm-api/src/main/java/org/apache/maven/scm/util/AbstractConsumer.java b/maven-scm-api/src/main/java/org/apache/maven/scm/util/AbstractConsumer.java
index b22a29b..389d7a4 100644
--- a/maven-scm-api/src/main/java/org/apache/maven/scm/util/AbstractConsumer.java
+++ b/maven-scm-api/src/main/java/org/apache/maven/scm/util/AbstractConsumer.java
@@ -82,7 +82,7 @@
 
         if ( StringUtils.isNotEmpty( userPattern ) )
         {
-            if (locale != null )
+            if ( locale != null )
             {
                 format = new SimpleDateFormat( userPattern, locale );
                 localeUsed = locale;
diff --git a/maven-scm-plugin/src/main/java/org/apache/maven/scm/plugin/BootstrapMojo.java b/maven-scm-plugin/src/main/java/org/apache/maven/scm/plugin/BootstrapMojo.java
index 4f5a4d6..eed57e9 100644
--- a/maven-scm-plugin/src/main/java/org/apache/maven/scm/plugin/BootstrapMojo.java
+++ b/maven-scm-plugin/src/main/java/org/apache/maven/scm/plugin/BootstrapMojo.java
@@ -1,5 +1,24 @@
 package org.apache.maven.scm.plugin;
 
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 import java.io.File;
 
 /*
@@ -69,7 +88,7 @@
     /**
      * The path where your maven is installed
      */
-    @Parameter( property = "mavenHome", defaultValue="${maven.home}")
+    @Parameter( property = "mavenHome", defaultValue = "${maven.home}" )
     private File mavenHome;
 
     /** {@inheritDoc} */
@@ -117,7 +136,7 @@
 
         if ( this.mavenHome == null )
         {
-            cl.setExecutable( "mvn" );//none windows only
+            cl.setExecutable( "mvn" ); // none windows only
         }
         else
         {
diff --git a/maven-scm-providers/maven-scm-provider-hg/src/main/java/org/apache/maven/scm/provider/hg/HgUtils.java b/maven-scm-providers/maven-scm-provider-hg/src/main/java/org/apache/maven/scm/provider/hg/HgUtils.java
index 68f21a4..3648e5c 100644
--- a/maven-scm-providers/maven-scm-provider-hg/src/main/java/org/apache/maven/scm/provider/hg/HgUtils.java
+++ b/maven-scm-providers/maven-scm-provider-hg/src/main/java/org/apache/maven/scm/provider/hg/HgUtils.java
@@ -315,7 +315,7 @@
      * @return true if a different outgoing branch was found
      * @throws ScmException on outgoing command error
      */
-    public static boolean differentOutgoingBranchFound( ScmLogger logger, File workingDir,String workingbranchName )
+    public static boolean differentOutgoingBranchFound( ScmLogger logger, File workingDir, String workingbranchName )
         throws ScmException
     {
         String[] outCmd = new String[]{ HgCommandConstants.OUTGOING_CMD };
@@ -326,10 +326,11 @@
         {
             for ( HgChangeSet set : changes )
             {
-                if (!getBranchName(workingbranchName).equals(getBranchName(set.getBranch()))) {
-                    logger.warn( "A different branch than " + getBranchName(workingbranchName)
-                        + " was found in outgoing changes, branch name was " + getBranchName(set.getBranch())
-                        + ". Only local branch named " + getBranchName(workingbranchName) + " will be pushed." );
+                if ( !getBranchName( workingbranchName ).equals( getBranchName( set.getBranch() ) ) )
+                {
+                    logger.warn( "A different branch than " + getBranchName( workingbranchName )
+                        + " was found in outgoing changes, branch name was " + getBranchName( set.getBranch() )
+                        + ". Only local branch named " + getBranchName( workingbranchName ) + " will be pushed." );
                     return true;
                 }
             }
@@ -337,7 +338,8 @@
         return false;
     }
 
-    private static String getBranchName(String branch) {
+    private static String getBranchName( String branch )
+    {
         return branch == null ? DEFAULT : branch;
     }
 
diff --git a/maven-scm-providers/maven-scm-provider-hg/src/main/java/org/apache/maven/scm/provider/hg/command/inventory/HgOutgoingConsumer.java b/maven-scm-providers/maven-scm-provider-hg/src/main/java/org/apache/maven/scm/provider/hg/command/inventory/HgOutgoingConsumer.java
index f5eebfb..be10814 100644
--- a/maven-scm-providers/maven-scm-provider-hg/src/main/java/org/apache/maven/scm/provider/hg/command/inventory/HgOutgoingConsumer.java
+++ b/maven-scm-providers/maven-scm-provider-hg/src/main/java/org/apache/maven/scm/provider/hg/command/inventory/HgOutgoingConsumer.java
@@ -22,8 +22,6 @@
 import org.apache.maven.scm.log.ScmLogger;
 import org.apache.maven.scm.provider.hg.command.HgConsumer;
 
-import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.CopyOnWriteArrayList;
 
diff --git a/maven-scm-providers/maven-scm-provider-jazz/src/main/java/org/apache/maven/scm/provider/jazz/command/changelog/JazzListChangesetConsumer.java b/maven-scm-providers/maven-scm-provider-jazz/src/main/java/org/apache/maven/scm/provider/jazz/command/changelog/JazzListChangesetConsumer.java
index 5740388..e78caa2 100644
--- a/maven-scm-providers/maven-scm-provider-jazz/src/main/java/org/apache/maven/scm/provider/jazz/command/changelog/JazzListChangesetConsumer.java
+++ b/maven-scm-providers/maven-scm-provider-jazz/src/main/java/org/apache/maven/scm/provider/jazz/command/changelog/JazzListChangesetConsumer.java
@@ -351,7 +351,8 @@
                 // try again forcing en locale
                 if ( changesetDate == null )
                 {
-                    changesetDate = parseDate( date.toString(), userDateFormat, JAZZ_TIMESTAMP_PATTERN_TIME, Locale.ENGLISH );
+                    changesetDate =
+                        parseDate( date.toString(), userDateFormat, JAZZ_TIMESTAMP_PATTERN_TIME, Locale.ENGLISH );
                 }
                 // Get today's time/date. Used to get the date.
                 Calendar today = Calendar.getInstance();
diff --git a/maven-scm-providers/maven-scm-providers-git/maven-scm-provider-gitexe/src/main/java/org/apache/maven/scm/provider/git/gitexe/command/status/GitStatusConsumer.java b/maven-scm-providers/maven-scm-providers-git/maven-scm-provider-gitexe/src/main/java/org/apache/maven/scm/provider/git/gitexe/command/status/GitStatusConsumer.java
index 8e06a4a..00a1ef3 100644
--- a/maven-scm-providers/maven-scm-providers-git/maven-scm-provider-gitexe/src/main/java/org/apache/maven/scm/provider/git/gitexe/command/status/GitStatusConsumer.java
+++ b/maven-scm-providers/maven-scm-providers-git/maven-scm-provider-gitexe/src/main/java/org/apache/maven/scm/provider/git/gitexe/command/status/GitStatusConsumer.java
@@ -285,7 +285,9 @@
     private static String stripQuotes( String str )
     {
         int strLen = str.length();
-        return ( strLen > 0 && str.startsWith( "\"" ) && str.endsWith( "\"" ) ) ? unescape( str.substring( 1, strLen - 1 ) ) : str;
+        return ( strLen > 0 && str.startsWith( "\"" ) && str.endsWith( "\"" ) )
+                        ? unescape( str.substring( 1, strLen - 1 ) )
+                        : str;
     }
     
     /**
@@ -369,7 +371,7 @@
                     inSub--;
                     break;
             }
-            pos = fileEntry.indexOf( '\\', inSub);
+            pos = fileEntry.indexOf( '\\', inSub );
             if ( pos == -1 )        // No more backslashes; we're done
             {
                 System.arraycopy( inba, inSub, outba, outSub, inba.length - inSub );
@@ -380,7 +382,7 @@
         try
         {
             // explicit say UTF-8, otherwise it'll fail at least on Windows cmdline
-            return new String(outba, 0, outSub, "UTF-8");
+            return new String( outba, 0, outSub, "UTF-8" );
         }
         catch ( UnsupportedEncodingException e )
         {
diff --git a/maven-scm-providers/maven-scm-providers-git/maven-scm-provider-gitexe/src/main/java/org/apache/maven/scm/provider/git/gitexe/command/update/GitUpdateCommand.java b/maven-scm-providers/maven-scm-providers-git/maven-scm-provider-gitexe/src/main/java/org/apache/maven/scm/provider/git/gitexe/command/update/GitUpdateCommand.java
index f5a8ddc..68e66a4 100644
--- a/maven-scm-providers/maven-scm-providers-git/maven-scm-provider-gitexe/src/main/java/org/apache/maven/scm/provider/git/gitexe/command/update/GitUpdateCommand.java
+++ b/maven-scm-providers/maven-scm-providers-git/maven-scm-provider-gitexe/src/main/java/org/apache/maven/scm/provider/git/gitexe/command/update/GitUpdateCommand.java
@@ -159,7 +159,7 @@
             // if any branch is given, lets take em
             cl.createArg().setValue( scmVersion.getName() );
         }
-	// otherwise we work on HEAD/current branch
+        // otherwise we work on HEAD/current branch
 
         return cl;
     }