morningman commented on code in PR #42507:
URL: https://github.com/apache/doris/pull/42507#discussion_r1817974809


##########
be/src/util/jvm_metrics.cpp:
##########
@@ -90,9 +92,12 @@ JvmMetrics::JvmMetrics(MetricRegistry* registry, JNIEnv* 
env) {
             break;
         }
         try {
-            _jvm_stats.init(env);
+            Status st = _jvm_stats.init();
+            if (!st) {
+                LOG(WARNING) << "jvm Stats Init Fail. " << st.to_string();

Review Comment:
   Should we call `break` if `!st`?



##########
be/src/util/jvm_metrics.cpp:
##########
@@ -182,193 +188,260 @@ void JvmMetrics::update() {
     }
 }
 
-void JvmStats::init(JNIEnv* ENV) {
-    env = ENV;
-    _managementFactoryClass = 
env->FindClass("java/lang/management/ManagementFactory");
-    if (_managementFactoryClass == nullptr) {
-        LOG(WARNING)
-                << "Class java/lang/management/ManagementFactory Not Find.JVM 
monitoring fails.";
-        return;
-    }
+Status JvmStats::init() {
+    JNIEnv* env = nullptr;
+    RETURN_IF_ERROR(JniUtil::GetJNIEnv(&env));

Review Comment:
   Why do we need to get `env` again here?



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