fix mercurial version informations

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgRepositoryHandler.java

@@ -127,7 +127,8 @@ public class HgRepositoryHandler
     try
     {
       this.jaxbContext = JAXBContext.newInstance(BrowserResult.class,
-              BlameResult.class, Changeset.class, ChangesetPagingResult.class);
+              BlameResult.class, Changeset.class, ChangesetPagingResult.class,
+              HgVersion.class);
     }
     catch (JAXBException ex)
     {
@@ -362,15 +363,23 @@ public class HgRepositoryHandler
 
     try
     {
-      JAXBContext context = JAXBContext.newInstance(HgVersion.class);
       HgVersion hgVersion = new HgVersionHandler(this, hgContextProvider.get(),
                               baseDirectory).getVersion();
 
       if (hgVersion != null)
       {
+        if (logger.isDebugEnabled())
+        {
+          logger.debug("mercurial/python informations: {}", hgVersion);
+        }
+
         version = MessageFormat.format(version, hgVersion.getPython(),
                                        hgVersion.getMercurial());
       }
+      else if (logger.isWarnEnabled())
+      {
+        logger.warn("could not retrieve version informations");
+      }
     }
     catch (Exception ex)
     {

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgVersion.java

@@ -31,6 +31,10 @@
 
 package sonia.scm.repository;
 
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.common.base.Objects;
+
 //~--- JDK imports ------------------------------------------------------------
 
 import javax.xml.bind.annotation.XmlAccessType;
@@ -46,6 +50,64 @@ import javax.xml.bind.annotation.XmlRootElement;
 public class HgVersion
 {
 
+  /**
+   * Method description
+   *
+   *
+   * @param obj
+   *
+   * @return
+   */
+  @Override
+  public boolean equals(Object obj)
+  {
+    if (obj == null)
+    {
+      return false;
+    }
+
+    if (getClass() != obj.getClass())
+    {
+      return false;
+    }
+
+    final HgVersion other = (HgVersion) obj;
+
+    return Objects.equal(mercurial, other.mercurial)
+           && Objects.equal(python, other.python);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public int hashCode()
+  {
+    return Objects.hashCode(mercurial, python);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public String toString()
+  {
+    //J-
+    return Objects.toStringHelper(this)
+                  .add("mercurial", mercurial)
+                  .add("python", python)
+                  .toString();
+    //J+
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
   /**
    * Method description
    *

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgVersionHandler.java

@@ -36,8 +36,6 @@ package sonia.scm.repository;
 import java.io.File;
 import java.io.IOException;
 
-import javax.xml.bind.JAXBContext;
-
 /**
  *
  * @author Sebastian Sdorra
@@ -54,8 +52,8 @@ public class HgVersionHandler extends AbstractHgHandler
    * @param context
    * @param directory
    */
-  public HgVersionHandler(HgRepositoryHandler handler,
-                          HgContext context, File directory)
+  public HgVersionHandler(HgRepositoryHandler handler, HgContext context,
+                          File directory)
   {
     super(handler, context, null, directory);
   }