[JDK24] Implement JVM_IsContainerized

Fixes: #19801

Signed-off-by: Babneet Singh <[email protected]>

Author: babsingh

runtime/j9vm/javanextvmi.cpp

@@ -793,10 +793,23 @@ JVM_GetCDSConfigStatus()
 #endif /* JAVA_SPEC_VERSION >= 23 */
 
 #if JAVA_SPEC_VERSION >= 24
+/**
+ * @brief Determine if the JVM is running inside a container.
+ *
+ * @return JNI_TRUE if running inside a container; otherwise, JNI_FALSE
+ */
 JNIEXPORT jboolean JNICALL
 JVM_IsContainerized(void)
 {
-	return JNI_FALSE;
+	J9JavaVM *vm = BFUjavaVM;
+	jboolean isContainerized = JNI_FALSE;
+	if (NULL != vm) {
+		OMRPORT_ACCESS_FROM_J9PORT(vm->portLibrary);
+		if (omrsysinfo_is_running_in_container()) {
+			isContainerized = JNI_TRUE;
+		}
+	}
+	return isContainerized;
 }
 #endif /* JAVA_SPEC_VERSION >= 24 */