I wrote a test program (in C++) to detect the codepages that would be returned
by the GetACP(), GetOEMCP(), and GetConsoleCP() functions when the
UTF-8 setting is added to the
manifest.
The manifest element (supported on Windows 10 Version
1903 or later) is in the
On Fri, 1 Oct 2021 21:10:27 GMT, Phil Race wrote:
>> macOS launcher code sets JAVA_MAIN_CLASS_ which is read by AWT to set
>> the name of the application in the system menu bar.
>>
>> Because this set shortly after the VM is running, it causes a thread safety
>> issue described in
> macOS launcher code sets JAVA_MAIN_CLASS_ which is read by AWT to set
> the name of the application in the system menu bar.
>
> Because this set shortly after the VM is running, it causes a thread safety
> issue described in https://bugs.openjdk.java.net/browse/JDK-8270549
>
> Since the AWT
On Fri, 1 Oct 2021 00:28:55 GMT, David Holmes wrote:
> A regression introduced in Java 17 will give the default FJ pool a
> parallelism of zero in a uniprocessor environment. The fix restores this to a
> value of 1. See bug report for details.
>
> Testing:
> - new regression test
> - tiers
On Fri, 1 Oct 2021 06:21:51 GMT, Aleksey Shipilev wrote:
>> David Holmes has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Updated TCK test component from @martin
>
> Oh wow. Looks good!
Thanks for the reviews @shipilev and
> A regression introduced in Java 17 will give the default FJ pool a
> parallelism of zero in a uniprocessor environment. The fix restores this to a
> value of 1. See bug report for details.
>
> Testing:
> - new regression test
> - tiers 1-3
>
> Thanks,
> David
David Holmes has updated the
On Thu, 30 Sep 2021 18:51:49 GMT, Andy Herrick wrote:
> 8274346: Support for additional content in an app-image.
Changes requested by asemenyuk (Reviewer).
test/jdk/tools/jpackage/share/AppContentTest.java line 97:
> 95: for (String p : paths) {
> 96:
On Mon, 4 Oct 2021 22:24:39 GMT, Peter Levart wrote:
>> This patch improves reflective access speed as shown by the included
>> benchmarks:
>>
>> https://jmh.morethan.io/?gists=902f4b43519c4f96c7abcd14cdc2d27d,ac490481e3001c710d75d6071c10b23a
>>
>> ... and is also a prerequisite to make JEP
On Mon, 4 Oct 2021 15:49:43 GMT, Peter Levart wrote:
>> This patch improves reflective access speed as shown by the included
>> benchmarks:
>>
>> https://jmh.morethan.io/?gists=902f4b43519c4f96c7abcd14cdc2d27d,ac490481e3001c710d75d6071c10b23a
>>
>> ... and is also a prerequisite to make JEP
> This patch improves reflective access speed as shown by the included
> benchmarks:
>
> https://jmh.morethan.io/?gists=902f4b43519c4f96c7abcd14cdc2d27d,ac490481e3001c710d75d6071c10b23a
>
> ... and is also a prerequisite to make JEP 416 (Reimplement Core Reflection
> with Method Handle)
On Fri, 1 Oct 2021 21:10:27 GMT, Phil Race wrote:
>> macOS launcher code sets JAVA_MAIN_CLASS_ which is read by AWT to set
>> the name of the application in the system menu bar.
>>
>> Because this set shortly after the VM is running, it causes a thread safety
>> issue described in
This is trivial fix of
[JDK-8274686](https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8274686)
which replaces manually-computed `int`-based `long` hash-code.
Because `Long#hashCode(long)` uses other hashing function than the one
currently used here:
John do you know if this also switches a console window into utf8 for such a
launcher? (And if so, also for a already open console?)
The problem will be similar to initial jep400 that some still might need to
know the legacy ansi codepage for the OS, and I guess the new method won’t give
us
On Mon, 4 Oct 2021 15:49:43 GMT, Peter Levart wrote:
>> This patch improves reflective access speed as shown by the included
>> benchmarks:
>>
>> https://jmh.morethan.io/?gists=902f4b43519c4f96c7abcd14cdc2d27d,ac490481e3001c710d75d6071c10b23a
>>
>> ... and is also a prerequisite to make JEP
On Mon, 4 Oct 2021 15:49:43 GMT, Peter Levart wrote:
>> This patch improves reflective access speed as shown by the included
>> benchmarks:
>>
>> https://jmh.morethan.io/?gists=902f4b43519c4f96c7abcd14cdc2d27d,ac490481e3001c710d75d6071c10b23a
>>
>> ... and is also a prerequisite to make JEP
On Mon, 4 Oct 2021 15:49:43 GMT, Peter Levart wrote:
>> This patch improves reflective access speed as shown by the included
>> benchmarks:
>>
>> https://jmh.morethan.io/?gists=902f4b43519c4f96c7abcd14cdc2d27d,ac490481e3001c710d75d6071c10b23a
>>
>> ... and is also a prerequisite to make JEP
Hi John,
Please see the JEP 400, which changes the default charset to UTF-8
across platforms:
https://openjdk.java.net/jeps/400
HTH,
Naoto
On 10/4/21 8:47 AM, John Platts wrote:
Windows 10 (since Windows 10 version 1903) and Windows 11 support UTF-8 as the
default codepage by setting an
On Mon, 4 Oct 2021 15:51:18 GMT, Peter Levart wrote:
> One way this could be improved is to "stamp" the modifiers field with an
> additional bit (say 0x8000_) to always hold a non-zero value.
> Method::getModifiers() would then clear that bit in a returned value to stay
> compatible.
On Thu, 30 Sep 2021 18:51:49 GMT, Andy Herrick wrote:
> 8274346: Support for additional content in an app-image.
CSR is at: https://bugs.openjdk.java.net/browse/JDK-8274717
-
PR: https://git.openjdk.java.net/jdk/pull/5780
8274346: Support for additional content in an app-image.
-
Commit messages:
- JDK-8274346: Support for additional content in an app-image.
- JDK-8274346: Support for additional content in an app-image.
- JDK-8274346: Support for additional content in an app-image.
Changes:
On Thu, 11 Feb 2021 13:28:49 GMT, Сергей Цыпанов
wrote:
> Originally was proposed by Zheka Kozlov here:
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2018-December/057192.html
>
> Just a tiny optimization: we can use for-i loop instead of
> `Iterable.forEach()` which is relying on
On Mon, 4 Oct 2021 07:13:37 GMT, Ichiroh Takiguchi
wrote:
>> JEP-400 (UTF-8 by Default) was eabled on JDK18-b13.
>> After JDK18-b13, javac and some other langtool command's usage were garbled
>> on Japanese Windows.
>> These commands use PrintWriter instead of standard out/err with
On Sat, 2 Oct 2021 15:31:35 GMT, Peter Levart wrote:
> > I'm fine with going back to the previous iteration. I'd add `@Stable` to
> > the same fields in `Constructor`, too, though.
>
> Good catch. I'll add @stable to select Constructor fields. They are important
> for optimizing `Const` use
> This patch improves reflective access speed as shown by the included
> benchmarks:
>
> https://jmh.morethan.io/?gists=902f4b43519c4f96c7abcd14cdc2d27d,ac490481e3001c710d75d6071c10b23a
>
> ... and is also a prerequisite to make JEP 416 (Reimplement Core Reflection
> with Method Handle)
Windows 10 (since Windows 10 version 1903) and Windows 11 support UTF-8 as the
default codepage by setting an option in the application manifest.
To enable UTF-8 as the default codepage for JDK executables on Windows 10
(starting with the May 2019 update) and Windows 11, the following
On Fri, 1 Oct 2021 18:57:28 GMT, Naoto Sato wrote:
> This is to incorporate the ISO 4217 amendment #170, which has been released
> today, effective immediately.
This pull request has now been integrated.
Changeset: f2404d60
Author:Naoto Sato
URL:
On Sun, 26 Sep 2021 15:10:52 GMT, Andrey Turbanov
wrote:
> In couple of classes, result part of arrays of Pattern.split is compared with
> `null`. Pattern.split (and hence String.split) never returns `null` in array
> elements. Such comparisons are redundant.
Marked as reviewed by weijun
The following sentence in the JDWP Specification describing the Dispose command
confuses resume with suspend [1]:
All threads suspended by the thread-level **resume** command or the VM-level
**resume** command are resumed as many times as necessary for them to run.
It should be changed to
On Thu, 11 Feb 2021 13:28:49 GMT, Сергей Цыпанов
wrote:
> Originally was proposed by Zheka Kozlov here:
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2018-December/057192.html
>
> Just a tiny optimization: we can use for-i loop instead of
> `Iterable.forEach()` which is relying on
Originally was proposed by Zheka Kozlov here:
http://mail.openjdk.java.net/pipermail/core-libs-dev/2018-December/057192.html
Just a tiny optimization: we can use for-i loop instead of `Iterable.forEach()`
which is relying on iterator.
Simple benchmark demonstrates slight improvement:
On Thu, 30 Sep 2021 18:32:17 GMT, Alex Kasko wrote:
> I was working on backporting JDK-8268457 and found minor problems with the
> test introduced there:
>
> 1. `compareWith*` helper methods are used without `Assert.assertTrue()`
> wrapping, so they are effectively ignored
>
> 2.
Hello,
in the code of HashSet(Collection) we have an optimization opportunity:
public HashSet(Collection c) {
map = new HashMap<>(Math.max((int) (c.size()/.75f) + 1, 16));
addAll(c);
}
instead of using addAll() inherited from j.u.Collection we can use
c.forEach(this::add):
public
On Mon, 4 Oct 2021 08:47:26 GMT, Ichiroh Takiguchi
wrote:
>> The encoding used in `Log.java` should first check whether it is run within
>> console or not. If `System.console()` returns the console, its `.charset()`
>> should be used instead of `native.encoding` value.
>> As to the jshell
On Fri, 1 Oct 2021 18:14:11 GMT, Naoto Sato wrote:
>> JEP-400 (UTF-8 by Default) was eabled on JDK18-b13.
>> After JDK18-b13, javac and some other langtool command's usage were garbled
>> on Japanese Windows.
>> These commands use PrintWriter instead of standard out/err with PrintStream.
>
>
> JEP-400 (UTF-8 by Default) was eabled on JDK18-b13.
> After JDK18-b13, javac and some other langtool command's usage were garbled
> on Japanese Windows.
> These commands use PrintWriter instead of standard out/err with PrintStream.
Ichiroh Takiguchi has updated the pull request incrementally
Currently, when the stream holds a resource, it's necessary to wrap it with
try-with-resources. This undermines the compact and fluent style of stream API
calls. For example, if we want to get the `List` of files inside the directory
and timely close the underlying filehandle, we should use
> This patch improves reflective access speed as shown by the included
> benchmarks:
>
> https://jmh.morethan.io/?gists=902f4b43519c4f96c7abcd14cdc2d27d,ac490481e3001c710d75d6071c10b23a
>
> ... and is also a prerequisite to make JEP 416 (Reimplement Core Reflection
> with Method Handle)
On Tue, 28 Sep 2021 22:41:23 GMT, Claes Redestad wrote:
> I'm fine with going back to the previous iteration. I'd add `@Stable` to the
> same fields in `Constructor`, too, though.
Good catch. I'll add @stable to select Constructor fields. They are important
for optimizing `Const` use cases.
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