On 15/02/2018 9:42 PM, Alan Bateman wrote:
On 19/12/2017 11:06, Alan Bateman wrote:
I've been going through the fields in java.lang.Thread and I'm
wondering if this field can be removed:
/* Whether or not to single_step this thread. */
private boolean single_step;
This field was used in the original Classic VM (pre-OpenJDK history).
It doesn't appear to be used in the HotSpot VM.
Does anyone know of any reason to keep it? Are there other VMs using
it by any chance?
No one screamed so I'd like to go ahead and remove this field. I've
created JDK-8193818 to track it, the change (below) is trivial.
Looks good to me :)
Thanks,
David
-Alan
--- a/src/java.base/share/classes/java/lang/Thread.java
+++ b/src/java.base/share/classes/java/lang/Thread.java
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1994, 2017, Oracle and/or its affiliates. All rights
reserved.
+ * Copyright (c) 1994, 2018, 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
@@ -150,9 +150,6 @@
private Thread threadQ;
private long eetop;
- /* Whether or not to single_step this thread. */
- private boolean single_step;
-
/* Whether or not the thread is a daemon thread. */
private boolean daemon = false;
