src/java.base/share/classes/java/lang/ProcessBuilder.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -32,10 +32,12 @@
 import java.io.OutputStream;
 import java.util.Arrays;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
+import java.util.StringJoiner;
+import jdk.internal.event.ProcessStartEvent;
 import sun.security.action.GetPropertyAction;
 
 /**
  * This class is used to create operating system processes.
  *

@@ -1102,15 +1104,27 @@
                 throw new IOException("invalid null character in command");
             }
         }
 
         try {
-            return ProcessImpl.start(cmdarray,
+            Process process = ProcessImpl.start(cmdarray,
                                      environment,
                                      dir,
                                      redirects,
                                      redirectErrorStream);
+            ProcessStartEvent event = new ProcessStartEvent();
+            if (event.isEnabled()) {
+                StringJoiner command = new StringJoiner(" ");
+                for (String s: cmdarray) {
+                    command.add(s);
+                }
+                event.directory = dir;
+                event.command = command.toString();
+                event.pid = process.pid();
+                event.commit();
+            }
+            return process;
         } catch (IOException | IllegalArgumentException e) {
             String exceptionInfo = ": " + e.getMessage();
             Throwable cause = e;
             if ((e instanceof IOException) && security != null) {
                 // Can not disclose the fail reason for read-protected files.