github-advanced-security[bot] commented on code in PR #17472:
URL: https://github.com/apache/druid/pull/17472#discussion_r1841215946
##########
processing/src/test/java/org/apache/druid/java/util/metrics/JvmMonitorTest.java:
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@@ -56,6 +57,30 @@
}
}
+ @Test(timeout = 60_000L)
+ public void testGcEventDurationMetrics() throws InterruptedException
+ {
+ GcEventDurationTrackingEmitter emitter = new
GcEventDurationTrackingEmitter();
+
+ final ServiceEmitter serviceEmitter = new ServiceEmitter("test",
"localhost", emitter);
+ serviceEmitter.start();
+ final JvmMonitor jvmMonitor = new JvmMonitor();
+ // skip tests if gc counters fail to initialize with this JDK
+ Assume.assumeNotNull(jvmMonitor.gcEventCollector);
+
+ while (true) {
+ // generate some garbage to see gc events occur
+ @SuppressWarnings("unused")
+ byte[] b = new byte[1024 * 1024 * 50];
Review Comment:
## Unread local variable
Variable 'byte\[\] b' is never read.
[Show more
details](https://github.com/apache/druid/security/code-scanning/8462)
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