implementing java class causes exception

Please do try to come up with a simple case. Sounds like some crazy API to have a method like void foo(int, long, double, double, double, double, long, double int). My very rough guess would be that the interface impl we're generating is not mapping the types correctly. Sort out which function that is and see if you can imitate it with non-proprietary code we can use to reproduce the error.

It is indeed a crazy finance API that we are using. I have been able to replicate the error with a three-parameter function in the interface. The error disappears if the function has only the first two parameters. Let me know if I can provide any other help.

Thanks for all of your hard work Charles!!!

JavaInterface.java
------------------------
public interface JavaInterface
{
void someFunction( int param1, long param2, double param3 );
}

test.rb
------------------------
require 'java'

include_class 'JavaInterface'

class RubyClass
include JavaInterface

def initialize
end

def someFunction( param1, param2, param3 )
end
end

RubyClass.new( )

I know it's been about a month, Jonathan, but can you give it a try with current code? I want to fix it but I have not had a chance to try to put together my own reproduction.

Reminder to self: try creating an interface with lots of ints and doubles and implementing it....

Charles,

I'm having problems downloading the latest snapshot to test against. The wiki gives provides the following link, which hasn't been working for a few days: http://jruby.thresher.com/download/JRUBY-TRSNAPINST/artifacts/latest/jruby-bin-snapshot-tar

What am I doing wrong?

Thanks,
Jon

Jonathan: Where did you see that link? We don't use thresher anymore; try the jruby-dist build on http://jruby.headius.com:8080/hudson.

Charles,

That link was here: http://wiki.jruby.org/wiki/Main_Page

Text of link is "Latest Snapshots".

I will try the latest build and let you know.

Cheers,
Jon

The current code is still broken for the test case that I included in the bug report on Sept 11. I receive the following error:

java.lang.Class:-2:in `getDeclaredMethods0': java.lang.VerifyError: (class: InterfaceImpl772013509, method: someFunction signature: (IJD)V) Register pair 3/4 contains wrong type
from java.lang.Class:2427:in `privateGetDeclaredMethods'
from java.lang.Class:2670:in `getMethod0'
from java.lang.Class:1603:in `getMethod'
from org.jruby.java.MiniJava:684:in `populateOldStyleImplClass'
from org.jruby.java.MiniJava:194:in `createOldStyleImplClass'
from org.jruby.javasupport.Java:1547:in `new_proxy_instance2'
from org.jruby.java.proxies.JavaInterfaceTemplate:251:in `jcreateProxy'
from org.jruby.java.proxies.JavaInterfaceTemplate:23:in `access$000'
from org.jruby.java.proxies.JavaInterfaceTemplate$3:158:in `call'
from org.jruby.internal.runtime.methods.JavaMethod$JavaMethodNoBlock:62:in `call'
from org.jruby.RubyClass:353:in `finvoke'
from org.jruby.javasupport.util.RuntimeHelpers:297:in `invoke'
from org.jruby.java.proxies.JavaInterfaceTemplate$2:142:in `call'
from org.jruby.internal.runtime.methods.DynamicMethod:226:in `call'
from org.jruby.internal.runtime.methods.DynamicMethod:203:in `call'
from org.jruby.runtime.callsite.CachingCallSite:258:in `cacheAndCall'
from org.jruby.runtime.callsite.CachingCallSite:76:in `call'
from test:15:in `_file_'
from test:-1:in `_file_'
from test:-1:in `load'
from org.jruby.Ruby:556:in `runScript'
from org.jruby.Ruby:469:in `runNormally'
from org.jruby.Ruby:342:in `runFromMain'
from org.jruby.Main:214:in `run'
from org.jruby.Main:100:in `run'
from org.jruby.Main:84:in `main'

Ok, I think I know what's wrong. The logic that implements an interface is probably not using the proper operations for two-dword primitives (long and double), and is not juggling the stack correctly. I can fix that pretty easily. Looking at it now.

Reproduced with the following snippit:

➔ jruby -rjava -e "class Foo; include Java::Test; def foo(a, b); puts a; puts b; 'foo'; end; end; Foo.new.foo(1, 1)"
java.lang.Class:-2:in `getDeclaredMethods0': java.lang.VerifyError: (class: InterfaceImpl940412576, method: foo signature: (JD)V) Register pair 2/3 contains wrong type
	from java.lang.Class:2427:in `privateGetDeclaredMethods'
	from java.lang.Class:2670:in `getMethod0'
	from java.lang.Class:1603:in `getMethod'
	from org.jruby.java.MiniJava:684:in `populateOldStyleImplClass'

Seems to be related to having two 64-bit primitives, since we have other tests for single 64-bit primitive interfaces.

Fixed with a spec in r7883. Sorry for the delay on this one; turned out to be 5 minutes of work.