Final fields, params and variables

src/main/java/appeng/services/VersionChecker.java

@@ -98,7 +98,7 @@ public final class VersionChecker implements Runnable
 
 			this.processInterval( nowInMs, lastAfterInterval );
 		}
-		catch( Exception exception )
+		catch( final Exception exception )
 		{
 			// Log any unhandled exception to prevent the JVM from reporting them as unhandled.
 			AELog.error( exception );

src/main/java/appeng/services/version/exceptions/VersionCheckerException.java

@@ -29,7 +29,7 @@ public class VersionCheckerException extends Exception
 {
 	private static final long serialVersionUID = 4582501864800542884L;
 
-	public VersionCheckerException( @Nonnull String string )
+	public VersionCheckerException( @Nonnull final String string )
 	{
 		super( string );
 	}

src/main/java/appeng/services/version/github/ReleaseFetcher.java

@@ -77,11 +77,11 @@ public final class ReleaseFetcher
 		{
 			AELog.error( e );
 		}
-		catch( MalformedURLException e )
+		catch( final MalformedURLException e )
 		{
 			AELog.error( e );
 		}
-		catch( IOException e )
+		catch( final IOException e )
 		{
 			AELog.error( e );
 		}