Re: Problems with JOB 4.3.0 and J2SDK 1.5.0

Hello Manuel,

On Wed, Dec 14, 2005 at 02:25:12PM +0100, Manuel Fünfrocken wrote:
> Hello!
> 
> I've some trouble using my code with JOB 4.3.0 and Java 1.5. We have switch
> to this Java version from Java 1.4.2._04. 
> 
> As I've seen on the Orbacus home page,  ORBacus 4.3.0 should work with Java
> 1.5. So I have just recompiled it after installing jsdk 1.5.0. 
> 
> I get some warnings while installing:
> 
> build:
> 
>  [ob.javac] Compiling 103 source files to C:\Temp\JOB-4.3.0\property\lib
>  [ob.javac] Note: Some input files use unchecked or unsafe operations.
>  [ob.javac] Note: Recompile with -Xlint:unchecked for details.
> 
> jar:
>       [jar] Building jar: C:\Temp\JOB-4.3.0\property\lib\OBProperty.jar
> 
> There are more warnings, but they have the same type: Some input files use
> unchecked or unsafe operations.
> 
> I've you think that could be usefull, I will post them here.
> 
> (The option Xlint:unchecked is unknown I've tried: ant Xlint:unchecked
> -Dinstall.dir=C:\JOB)

I believe this is a case of the Java 1.5 compiler being stricter
when it comes to the "Xlint" warnings. Nothing has changed in Orbacus,
so this should not be an issue. We didn't worry about this before since
the previous compilers didn't complain, but will will work to eliminate
these warnings in future versions.

> I also get this exception when running my program: 
> 
> Exception in thread "main" java.lang.NoSuchMethodError:
> org.omg.PortableInterceptor.IORInterceptor_3_0.adapter_manager_state_changed
> (Ljava/lang/String;S)V
> 
>       at com.ooc.OB.PIManager.adapterManagerStateChange(PIManager.java:688)
>       at com.ooc.OBPortableServer.POAManager_impl.activate(POAManager_impl.java:220)
>       at client.ClientServant.getPOAManager(ClientServant.java:135)
>       at client.ClientServant.<init>(ClientServant.java:71)
>       at client.ClientServant.<init>(ClientServant.java:57)
> 
> Note: Orbacus works fine as long as my program only works as pure client. If
> I try to start function that run as server (neede for callbacks) I get the
> exception above.
> 
> Has anybody some advice? I am right, that JOB 4.3.0 can be used with Java
> 1.5? And is it just recompiling or does I have to change some code?

Orbacus for Java 4.3.0 is compatible with Java 1.5. This particular
problem has to do with a change between Java 1.4.2 and 1.5 where Sun
introduced an updated API for Portable Interceptors that still is not 
up to the same level of the OMG spec that Orbacus is. This change now
causes the "PortableInterceptor" exception that you are seeing above if
the JVM is not told to use the Orbacus classes rather than the Sun
classes. This can be done using the "java.endorsed.dirs" property.

Here's the supporting documentation around using the Java Endorsed
Standards Override Mechanism:

http://java.sun.com/j2se/1.5.0/docs/guide/standards/

Basically, this is a way to tell the JVM that user supplied class
definitions (in this case, Orbacus) should be used instead of those 
provided by the JVM. 

> Kind Regards
> Manuel Fünfrocken

Cheers,
Dave

-- 
David Weir                          
Team Orbacus - Your CORBA Source
E-Mail: [email protected]
WWW: http://www.orbacus.com
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