Adding unit test for IBM G9 GC metrics

DataDog · Aug 7, 2024 · 713eb16 · 713eb16
1 parent c51e3da
commit 713eb16
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Showing 2 changed files with 22 additions and 1 deletion.
diff --git a/src/test/java/org/datadog/jmxfetch/TestGCMetrics.java b/src/test/java/org/datadog/jmxfetch/TestGCMetrics.java
@@ -148,6 +148,26 @@ public void testDefaultNewGCMetricsUseGenerationalZGC() throws IOException {
  }
  }
 
+ @Test
+ public void testDefaultNewGCMetricsIBMJ9() throws IOException {
+ try (final MisbehavingJMXServer server = new MisbehavingJMXServer.Builder().withJDKImage(
+ JDK_11_OPENJ9).appendJavaOpts("-Xgcpolicy:balanced").build()) {
+ final List<Map<String, Object>> actualMetrics = startAndGetMetrics(server, true);
+ assertThat(actualMetrics, hasSize(13));
+ final List<String> gcCycles = Arrays.asList(
+ "ZGC Major Cycles",
+ "ZGC Major Pauses");
+ assertGCMetric(actualMetrics, "jvm.gc.major_collection_count", gcCycles);
+ assertGCMetric(actualMetrics, "jvm.gc.major_collection_time", gcCycles);
+
+ final List<String> gcPauses = Arrays.asList(
+ "ZGC Minor Cycles",
+ "ZGC Minor Pauses");
+ assertGCMetric(actualMetrics, "jvm.gc.minor_collection_count", gcPauses);
+ assertGCMetric(actualMetrics, "jvm.gc.minor_collection_time", gcPauses);
+ }
+ }
+
  private List<Map<String, Object>> startAndGetMetrics(final MisbehavingJMXServer server,
  final boolean newGCMetrics) throws IOException {
  server.start();

diff --git a/src/test/java/org/datadog/jmxfetch/util/server/JDKImage.java b/src/test/java/org/datadog/jmxfetch/util/server/JDKImage.java
@@ -4,7 +4,8 @@ public enum JDKImage {
  BASE("base"),
  JDK_11("eclipse-temurin:11"),
  JDK_17("eclipse-temurin:17"),
- JDK_21("eclipse-temurin:21");
+ JDK_21("eclipse-temurin:21"),
+ JDK_11_OPENJ9("adoptopenjdk/openjdk11-openj9:latest");
 
  private final String image;