updated parent pom
diff --git a/pom.xml b/pom.xml
index 40f18c5..1510146 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,7 +17,7 @@
   <parent>
     <groupId>org.apache.maven</groupId>
     <artifactId>maven-parent</artifactId>
-    <version>30</version>
+    <version>31</version>
     <relativePath>../../../pom/maven/pom.xml</relativePath>
   </parent>
 
diff --git a/src/main/java/org/apache/maven/dist/tools/index/DistCheckIndexPageMojo.java b/src/main/java/org/apache/maven/dist/tools/index/DistCheckIndexPageMojo.java
index 6addfd2..b83aebd 100644
--- a/src/main/java/org/apache/maven/dist/tools/index/DistCheckIndexPageMojo.java
+++ b/src/main/java/org/apache/maven/dist/tools/index/DistCheckIndexPageMojo.java
@@ -113,7 +113,7 @@
         private String indexVersion;
         private String indexDate;
         
-        public CheckIndexPageResult( ConfigurationLineInfo r, String version )
+        private CheckIndexPageResult( ConfigurationLineInfo r, String version )
         {
             super( r, version );
         }
diff --git a/src/main/java/org/apache/maven/dist/tools/site/CheckSiteResult.java b/src/main/java/org/apache/maven/dist/tools/site/CheckSiteResult.java
index 543316e..f94f124 100644
--- a/src/main/java/org/apache/maven/dist/tools/site/CheckSiteResult.java
+++ b/src/main/java/org/apache/maven/dist/tools/site/CheckSiteResult.java
@@ -45,7 +45,7 @@
     private Document document;
     private String screenshotName;
 
-    public CheckSiteResult( DistCheckSiteMojo distCheckSiteMojo, ConfigurationLineInfo r, String version )
+    CheckSiteResult( DistCheckSiteMojo distCheckSiteMojo, ConfigurationLineInfo r, String version )
     {
         super( r, version );
         this.distCheckSiteMojo = distCheckSiteMojo;
diff --git a/src/main/java/org/apache/maven/dist/tools/source/CheckSourceReleaseResult.java b/src/main/java/org/apache/maven/dist/tools/source/CheckSourceReleaseResult.java
index a09dcdb..5d6d221 100644
--- a/src/main/java/org/apache/maven/dist/tools/source/CheckSourceReleaseResult.java
+++ b/src/main/java/org/apache/maven/dist/tools/source/CheckSourceReleaseResult.java
@@ -32,7 +32,7 @@
     List<String> dist;
     List<String> distOlder;
 
-    public CheckSourceReleaseResult( ConfigurationLineInfo r, String version )
+    CheckSourceReleaseResult( ConfigurationLineInfo r, String version )
     {
         super( r, version );
     }
diff --git a/src/main/java/org/apache/maven/dist/tools/source/DistCheckSourceReleaseMojo.java b/src/main/java/org/apache/maven/dist/tools/source/DistCheckSourceReleaseMojo.java
index bc056bd..1e7a67a 100644
--- a/src/main/java/org/apache/maven/dist/tools/source/DistCheckSourceReleaseMojo.java
+++ b/src/main/java/org/apache/maven/dist/tools/source/DistCheckSourceReleaseMojo.java
@@ -100,7 +100,7 @@
 
         int distOlder = 0;
 
-        public DirectoryStatistics( String directory, String groupId )
+        private DirectoryStatistics( String directory, String groupId )
         {
             this.directory = directory;
             this.groupId = groupId;