ConcurrentHashMap does not work with null values

Jaroslav Bachorik · Jaroslav Bachorik · commit 81acbaae86ee · 2014-09-08T19:29:20.000+02:00
diff --git a/src/share/classes/com/sun/btrace/BTraceRuntime.java b/src/share/classes/com/sun/btrace/BTraceRuntime.java
@@ -385,7 +385,7 @@ public void run() {
                 } catch (InterruptedException ignored) {
                 } catch (IOException ignored) {
                 } finally {
-                    runtimes.put(className, null);
+                    runtimes.remove(className);
                     queue.clear();
                     specQueueManager.clear();
                     BTraceRuntime.leave();
