mbien commented on code in PR #5998:
URL: https://github.com/apache/netbeans/pull/5998#discussion_r1227304507


##########
java/maven/src/org/netbeans/modules/maven/problems/MavenModelProblemsProvider.java:
##########
@@ -90,10 +91,19 @@ public class MavenModelProblemsProvider implements 
ProjectProblemsProvider, Inte
     
     private final PropertyChangeSupport support = new 
PropertyChangeSupport(this);
     private final Project project;
-    private final AtomicBoolean projectListenerSet = new AtomicBoolean(false);
-    private final AtomicReference<Collection<ProjectProblem>> problemsCache = 
new AtomicReference<Collection<ProjectProblem>>();
     private final PrimingActionProvider primingProvider = new 
PrimingActionProvider();
+
     private ProblemReporterImpl problemReporter;
+
+    // @GuardedBy(this)
+    private Pair<Collection<ProjectProblem>, Boolean> problemsCache = null;
+    // @GuardedBy(this)
+    private boolean projectListenerSet;
+
+    /**
+     * The Maven project that has been processed already.
+     */
+    private volatile Reference<MavenProject> analysedProject = new 
WeakReference<>(null);

Review Comment:
   volatile can be removed, since guarded by this.



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