Hi Peter,
Moving the annotations fields into a helper object would tie in with the
Class-instance size reduction effort that was investigated as part of
"JEP 149: Reduce Core-Library Memory Usage":
http://openjdk.java.net/jeps/149
The investigations there to date only looked at relocating th
Hi,
I propose the following patch to java.lang.Class in order to overcome
the synchronization bottleneck when accessing annotations from multiple
threads. The patch packs the 'annotations' and 'declaredAnnotations'
Maps together with an int redefinedCount into a structure:
static class A
On 11/02/2012 12:04 PM, Peter Levart wrote:
On 11/02/2012 11:03 AM, Alexander Knöller wrote:
Hello there.
(Reposting this request for improvement as suggested in mailing list
jdk6-dev)
java.lang.Class.getAnnotations() always enters a synchronized-block
(initAnnotationsIfNecessary() ), slowi
On 04/11/2012 12:50, Staffan Larsen wrote:
:
I realize the focus is blocking I/O for now but one thing to know is that timed
read operations on socket adapters (the socket obtained by calling
SocketChannel's socket method) configures the socket channel to be non-blocking
so this means that th
Changeset: bc09a1591629
Author:alanb
Date: 2012-11-04 14:07 +
URL: http://hg.openjdk.java.net/jdk8/tl/jdk/rev/bc09a1591629
8000330: (fc) FileChannel.truncate issues when given size > file size
8002180: (fc) FileChannel.map does not throw NPE if MapMode specified as null
Reviewed
On 04/11/2012 13:19, fuyou wrote:
hi
all
When I use @SuppressWarnings in program.
I only know some ,ex
@SuppressWarnings("unchecked"),@SuppressWarnings("unused").
what others?
The JLS specifies two warning names [2], beyond that it is compiler
specific. In the case of javac then
Hi,
If you're using javac to compile your Java source code, than you can try
running
javac -X
to see the list of -Xlint options. That'll give you a hint of what warnings
can be suppressed.
As from the JavaDoc [1], the warning names are vendor specific. So if
you're not using javac then youll need
Thanks Alan. Some comments inline.
On 2 nov 2012, at 23:21, Alan Bateman wrote:
> On 02/11/2012 18:36, Staffan Larsen wrote:
>> This is a preliminary review request for adding an API for tracing I/O
>> calls. For now, this is an empty infrastructure intended to enable
>> diagnosing/tracing of
Aleksey,
Thanks for looking at the code. I have been running volano on this, but could
not detect any regressions. If that is because there are no regressions,
because volano is not the right workload or because the run-to-run variance is
so high, I cannot say.
I'm going to try to develop micr
On 11/03/2012 01:15 AM, Mandy Chung wrote:
> On 11/2/2012 1:47 PM, Staffan Larsen wrote:
>> On 2 nov 2012, at 21:12, Mandy Chung wrote:
>>
>>> The *Begin() methods return a "handle" that will be passed to the
>>> *End() methods. Have you considered to define a type for it rather
>>> than Object?
Changeset: d7d932236fee
Author:mcimadamore
Date: 2012-11-04 10:59 +
URL: http://hg.openjdk.java.net/jdk8/tl/langtools/rev/d7d932236fee
7192246: Add type-checking support for default methods
Summary: Add type-checking support for default methods as per
Featherweight-Defender doc
On 3/11/2012 3:27 AM, Kelly O'Hair wrote:
All changes to JDK sources require a CR, an OpenJDK author name, and a review
by a second OpenJDK author.
So although you can automate the preparation of the commit, you cannot fully
automate this process.
There have been many discussions over the year
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