Hi Lev,
Yes, you can pass NULL to CP patches argument [1].
AnonymousClassLoader is not supported and doesn't have to be correct [2].
Best regards,
Kirill
[1]
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/file/c82d1a19ffb5/src/share/vm/prims/unsafe.cpp#l1090
[2]
https://bugs.openjdk.java.net/
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On 04/06/2011 07:17 PM, Charles Oliver Nutter wrote:
> 1. You can pass -d to JRuby to get the debug output from the failure,
> or -Xjit.logging.verbose=true. I can take a look at this as soon as I
> can update to java.lang.invoke.
The compilation error is most probably caused by package rename:
w
Hi Charlie,
1. There is a problem with JRuby: starting from b136 of JDK7, ruby refuses to
compile benchmark when -Xcompile.invokedynamic=true:
$ bin/jruby -X+C -Xcompile.invokedynamic=true
bench/bench_fib_recursive.rb
RuntimeError: could not compile and compile mode is 'force':
Hi,
1. Can the combiner method in MethodHandles.foldArguments() have the void
return type, so the combiner result is not passed to target?
This would allow to easily add a debugging hook (or aspect) to a MethodHandle
call.
2. Can I apply MethodHandles.filterReturnValue() to a void target meth
Hi All,
Oracle will make an one-day conference called "Java Tech Day" in St.
Petersburg, Russia. There will be a section called "ask the experts" for a
number of JDK7 features including JSR 292. I'm asked to be a live emulator of
JSR292 expert there.
I expect that people will ask about "real"
The invokedynamic instruction requires a MethodHandle constant pool
entry for a bootstrap method.
This MH CP entry can be one of 9 REF_xxx types.
Questions:
Q1. Which types are valid in the case of bootstrap method?
Q2. What happens if I try to use invalid types?
I could not find answers in t
By the way, why exactInvoker() is needed? Isn't the following true?
exactInvoker(target.type()).bindTo(target) == target
Kirill
On 01/27/2011 12:01 AM, Jim Laskey wrote:
> I think it's a simple issue. Drop should use 1 instead of 0.
>
>
> public static
> MethodHandle filterReturnValue
>
> My question had to do with run time overhead. Do you think that
> invokeGeneric
> is slower than invokeEaxct at run time? If not then that removes one of the
> reasons for not using java classes.
Hi Mark,
The current invokeGeneric argument conversion implementation has poor
performance profi
> While patching ASM in order to generate the new class file format,
> I generate a class file that crash the VM
> (see attachment).
Hi Remi,
Yes, VM definitely should not crash with invalid class files.
I filed a bug and depending on Oracle bug visibility policy, it may
appear at bugs.sun.com:
Hi Remi,
Thank you for reporting the crash. It can be tracked at:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7009600
Kirill
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Hi Remi,
Thank you for reporting the crash. It can be tracked at:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7009600
Kirill
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John,
I don't know if it is a known issue, but I noticed that InvokeDynamic
throws NoClassDefFoundError in the following test:
package test;
import java.dyn.InvokeDynamic;
import java.dyn.InvokeDynamicBootstrapError;
public class Self {
public static void main(String[] arg
The following patch includes java.dyn.* classes into rt.jar:
===
diff -r fce4266e4a96 make/docs/CORE_PKGS.gmk
--- a/make/docs/CORE_PKGS.gmk Mon Dec 22 19:49:22 2008 +0300
+++ b/make/docs/CORE_PKGS.gmk Thu Dec 25 22:02:47 2008 +0300
@@ -96,6 +96,9 @@
java.awt.print
Hi Ben,
It seems that the following is a correct patch for these 2 files
(Parser.java and Name.java):
diff -r 871c1708de94
src/share/classes/com/sun/tools/javac/parser/JavacParser.java
--- a/src/share/classes/com/sun/tools/javac/parser/JavacParser.java
Tue Dec 23 05:50:59 2008 +0300
+++
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