Re: [jnc-users] JNC hangs

[Harpal G. <har...@ho...>]

>From: Marco Trudel <mt...@gm...>
>To: "A mailing list for general questions and discussions." 
><jav...@li...>,  har...@ho...
>Subject: Re: [jnc-users] JNC hangs
>Date: Thu, 15 Feb 2007 08:01:50 +0100
>
>Harpal Grover wrote:
>>I downloaded the latest JNC, 1.1, and attempted to compile my java app to 
>>a native app. The compilation started, but after awhile stopped working 
>>and JNC just hung, with the following log output:
>
>Did you mix .java and .class source files?
>Does it work with JNC 1.0?

Yes the files were mixed. Eclipse defaults to this :( I am not going to try 
compiling with JNC 1.0, since I do not believe it supports Java 1.5 features

>
>A "java_parse_file, at java/jcf-parse.c:1947" error was recently fixed in 
>GCJ. It might be the one you run into (unless you're compiling .java and 
>.class files at the same time).

Yes this seems to have been the issue indeed. Thanks for the tip. I cleaned 
my source of any class files before I ran JNC and this time it worked!

>
>
>BTW: Adding the custom "-w" flag would suppress all Java warnings you're 
>seeing.

Thanks again for the tip.

Now I have another question for everyone. Has anyone attempted to compile a 
java database with JNC 1.1? I have successfully compiled both HSQLDB 1.8.7 
and H2 1.0. But when my native app loads with HSQLDB, I get this error:

Exception in thread "main" java.lang.NoClassDefFoundError: org.hsqldb.Trace
   at org.hsqldb.Trace.error(App.exe)
   at gnu.java.lang.MainThread.call_main(App.exe)
   at org.hsqldb.DatabaseManager.getDatabase(App.exe)
   at org.hsqldb.DatabaseManager.newSession(App.exe)
   at org.hsqldb.jdbc.jdbcConnection.<init>(App.exe)
   at java.sql.DriverManager.getConnection(App.exe)
   at com.sportscash.database.H2.DAO.createConnection(App.exe)
   at foo.foo.foo.<init>(App.exe)
   at App.<init>(App.exe)

When I try with H2, I get a file locking error. I did not run into these 
issues when using gcj 4.02.

Thanks for any possible help!

Harpal

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