8213617: JFR should record the PID of the recorded process

Reviewed-by: mgronlun

test/jdk/jfr/event/runtime/TestVMInfoEvent.java

@@ -37,6 +37,7 @@ import jdk.jfr.consumer.RecordedEvent;
 import jdk.test.lib.Asserts;
 import jdk.test.lib.jfr.EventNames;
 import jdk.test.lib.jfr.Events;
+import jdk.test.lib.process.ProcessTools;
 
 /**
  * The test will verify that JVM Information event values are delivered
@@ -64,6 +65,8 @@ public class TestVMInfoEvent {
 
             String jvmArgs = Events.assertField(event, "jvmArguments").notNull().getValue();
             String jvmFlags = Events.assertField(event, "jvmFlags").notNull().getValue();
+            Long pid = Events.assertField(event, "pid").atLeast(0L).getValue();
+            Asserts.assertEquals(pid, ProcessTools.getProcessId());
             String eventArgs = (jvmFlags.trim() + " " + jvmArgs).trim();
             String beanArgs = mbean.getInputArguments().stream().collect(Collectors.joining(" "));
             Asserts.assertEquals(eventArgs, beanArgs, "Wrong inputArgs");