Can't get lambda forest to work

[Maurizio Cimadamore]

I can run your example with no problems. Which version of JDK 7 are you 
using? Could it be a not too recent one? I'm using b94.

In order to get the scripts I'm talking about follows the following steps:

1) cd <ROOT>/langtools
2) ant build-all-tools

Note: step 2 might require changes to the build.properties file under 
langtools/make (e.g. you need to point to a valid JDK 6 for compiling 
the langtools repository, and then set a valid JDK 7 distro for 
launching the new javac).

Maurizio

On 14/06/10 17:12, Jonathan Gibbons wrote:
> On 06/14/2010 09:00 AM, Andrew Haley wrote:
>    
>> On 06/14/2010 04:53 PM, Maurizio Cimadamore wrote:
>>
>>      
>>> On 14/06/10 16:25, Andrew Haley wrote:
>>>
>>>        
>>>> This is rev 179:d923ba684bc4 of http://hg.openjdk.java.net/lambda/lambda
>>>>
>>>> It doesn't seem to work.  I compile
>>>>
>>>> public class Closures
>>>> {
>>>>      public static void main(String[] args)
>>>>      {
>>>>        #int() fortyTwo = #()(42);
>>>>
>>>>        System.out.println("Hello, World!" + fortyTwo.());
>>>>      }
>>>> }
>>>>
>>>> but it doesn't run:
>>>>
>>>> happy:~ $ /local/lambda/build/linux-amd64/j2sdk-image/bin/javac
>>>> -XDallowFunctionTypes -source 7 Closures.java
>>>> happy:~ $ /local/lambda/build/linux-amd64/j2sdk-image/bin/java
>>>> -XX:+UnlockExperimentalVMOptions -XX:+EnableMethodHandles  -cp . Closures
>>>> OpenJDK 64-Bit Server VM warning: JSR 292 invokedynamic is disabled in
>>>> this JVM.  Use -XX:+UnlockExperimentalVMOptions
>>>> -XX:+EnableInvokeDynamic to enable.
>>>> Exception in thread "main" java.dyn.NoAccessException: cannot access:
>>>> *.java.dyn.MethodHandle.invoke()int
>>>>            at sun.dyn.MemberName.newNoAccessException(MemberName.java:421)
>>>>            at sun.dyn.MemberName.newNoAccessException(MemberName.java:412)
>>>>            at sun.dyn.MemberName$Factory.resolveOrFail(MemberName.java:517)
>>>>            at
>>>> java.dyn.MethodHandles$Lookup.findVirtual(MethodHandles.java:268)
>>>>            at sun.dyn.Invokers.exactInvoker(Invokers.java:66)
>>>>            at sun.dyn.Invokers.genericInvoker(Invokers.java:74)
>>>>            at java.dyn.MethodHandle.invokeVarargs(MethodHandle.java:354)
>>>>            at Closures.main(Closures.java:7)
>>>> happy:~ $ /local/lambda/build/linux-amd64/j2sdk-image/bin/java -version
>>>> openjdk version "1.7.0-internal"
>>>> OpenJDK Runtime Environment (build
>>>> 1.7.0-internal-aph_2010_06_10_17_35-b00)
>>>> OpenJDK 64-Bit Server VM (build 19.0-b01, mixed mode)
>>>>
>>>> Any ideas what might be going wrong, please?
>>>>
>>>>
>>>>          
>>> You'll need the following VM options:
>>>
>>> -XX:+UnlockExperimentalVMOptions -XX:+EnableMethodHandles
>>> -XX:+EnableInvokeDynamic
>>>
>>>        
>> Thanks.  As I said in my previous reply, that doesn't help:
>>
>> happy:~ $ /local/lambda/build/linux-amd64/j2sdk-image/bin/java  -XX:+UnlockExperimentalVMOptions -XX:+EnableMethodHandles -XX:+EnableInvokeDynamic -cp . Closures
>> Invalid layout of java.dyn.CallSite at target
>> #
>> # A fatal error has been detected by the Java Runtime Environment:
>> #
>> #  Internal Error (javaClasses.cpp:48), pid=10544, tid=14015271442
>>
>>
>>      
>>> alternatively, you could use the handy scripts for invoking java/javac
>>> that should appear in the langtools/dist/bin directory. Those scripts
>>> automatically sets things up for you.
>>>
>>>        
>> Thanks, but I can't find those at all.  I can find
>>
>> /local/lambda/langtools/src/share/bin/java.sh-template
>>
>> which I guess must be what you mean, but no output file.
>>
>> Andrew.
>>
>>
>>      
> The langtools dist/bin/* files are only created in langtools "developer
> build" mode, and not in "full JDK build" mode, which you have done.  If
> you wanted to build those files, you'd have to go to langtools and drive
> "make" or Ant directly, using an Ant target like build-all-tools. But,
> nothing there will help with the fatal runtime error you have uncovered.
> Sorry.
>
> -- Jon
>
>