Implement review feedback

Signed-off-by: Lehmann_Fabian <[email protected]>

Author: Lehmann-Fabian

src/main/java/cws/k8s/scheduler/publishDir/InformPublishFinishedRunnable.java

@@ -16,6 +16,6 @@ public class InformPublishFinishedRunnable implements Runnable {
     @Override
     public void run() {
         execHolder.finishedOnNode( nodeLocation );
-        currentPublishJobsPerNode.compute( nodeLocation, ( k, v ) -> v == null ? 0 : v - 1 );
+        currentPublishJobsPerNode.compute( nodeLocation, ( k, v ) -> v == null ? 0 : Math.max(0, v - 1) );
     }
 }

src/main/java/cws/k8s/scheduler/publishDir/PublishManager.java

@@ -31,7 +31,7 @@ public class PublishManager {
     private final PublishExecHolder execHolder = new PublishExecHolder();
     private final Map<NodeLocation, Integer> currentPublishJobsPerNode = new ConcurrentHashMap<>();
     // Maximum number of parallel publish jobs per node
-    private final int MAX_COPY_PER_NODE = 1;
+    private final static int MAX_COPY_PER_NODE = 1;
 
     /**
      * Maximum number of arguments for the publish command.