Back to plain boolean. See https://github.com/jenkinsci/kubernetes-pl…

…ugin/pull/1479/files#r1430305858

src/main/java/org/csanchez/jenkins/plugins/kubernetes/KubernetesLauncher.java

@@ -47,7 +47,6 @@
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.stream.Collectors;
@@ -68,7 +67,7 @@ public class KubernetesLauncher extends JNLPLauncher {
 
     private static final Logger LOGGER = Logger.getLogger(KubernetesLauncher.class.getName());
 
-    private final AtomicBoolean launched = new AtomicBoolean(false);
+    private volatile boolean launched = false;
 
     /**
      * Provisioning exception if any.
@@ -87,7 +86,7 @@ public KubernetesLauncher() {
 
     @Override
     public boolean isLaunchSupported() {
-        return !launched.get();
+        return !launched;
     }
 
     @Override
@@ -104,7 +103,7 @@ public synchronized void launch(SlaveComputer computer, TaskListener listener) {
         if (node == null) {
             throw new IllegalStateException("Node has been removed, cannot launch " + computer.getName());
         }
-        if (launched.get()) {
+        if (launched) {
             LOGGER.log(INFO, "Agent has already been launched, activating: {0}", node.getNodeName());
             computer.setAcceptingTasks(true);
             return;
@@ -288,7 +287,7 @@ public synchronized void launch(SlaveComputer computer, TaskListener listener) {
             }
 
             computer.setAcceptingTasks(true);
-            launched.set(true);
+            launched = true;
             try {
                 // We need to persist the "launched" setting...
                 node.save();