On Tue, 21 Dec 2021 23:01:20 GMT, Chris Plummer <cjplum...@openjdk.org> wrote:

>> src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/CommandProcessor.java 
>> line 560:
>> 
>>> 558:                     } else {
>>> 559:                         out.println();
>>> 560:                     }
>> 
>> I wonder if it is possible to simplify the above fragment at 549-560 with 
>> something like:
>>                     if (verbose) {
>>                         // If we know what this is a pointer to, then print 
>> additional information.
>>                         PointerLocation loc = PointerFinder.find(val);
>>                         if (!loc.isUnknown()) {
>>                             out.print(" ");
>>                             loc.printOn(out, false, false);     // make it 
>> print without line end or ignore there is an extra end?
>>                         }
>>                     }
>>                     out.println();
>
> `printOn()` always prints a newline. It's hard to make it not do that since 
> it relies on other `print` APIs, some of which print newlines and some of 
> which don't (in which case `printOn()` will print a newline). So I can't 
> easily just create a `printOn()` variant that doesn't print newlines, and 
> printing two newlines would introduce a bunch of blank lines in the output, 
> which wouldn't look good.

Okay, thanks.

-------------

PR: https://git.openjdk.java.net/jdk/pull/6902

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