RE: [Classpathx-xml] gnujaxp with JDK1.1.8

[Ma, Steve]

I tried to recompile the source with JDK 1.1.8.  I get a few compilation
errors.  Couple of them are because some code use methods that are only
defined in JDK 1.2.2 or above.  

(i.e. 

.\source\gnu\xml\pipeline\XIncludeFilter.java:209: Method clear() not found
in class java.util.Vector.
        inclusions.clear ();

)

The rest of the errors are when the 1.1.8 compiler trying to read some
private variables in the parent class with a same name instead of looking in
the current class for the variable. I think this is a bug in the windows
compiler because after renaming the private variable in the parent class,
the error goes away.

After changing the 1.2.2 calls into JDK 1.1.8 equivalent methods, I was able
to compile my classes against the new 1.1.8 GNU JAXP without getting the
"import error for gnu.xml.aelfred2.JAXPFactory" error.

I think all of these problems (not using same variable names and using 1.1.8
compliant method calls) are all relatively easy to fix and can make GNU JAXP
much more portable. I'm planning on using the Aelfred2 parser on WinCE
handheld devices running Personal Java, so having a GNU library that is
Windows JDK 1.1.8 compatible is going to be very helpful.

My 2 cents.

Steve


 
-----Original Message-----
From: David Brownell [mailto:address@hidden 
Sent: Wednesday, December 05, 2001 2:42 PM
To: Ma, Steve
Cc: address@hidden
Subject: Re: [Classpathx-xml] gnujaxp with JDK1.1.8

I don't happen to have a Windows 1.1 setup,
so no I can't try that.  But back when I did, I
don't ever recall seeing an OS-specific problem
at that level that wasn't caused by something odd
in the compiler (or runtime) class loading setup.

Of course, the way the JRE and JDK installed
there was a bit strange too.  I know other folk
have reported problems wherein they've needed
to install Java classes twice, so that both the
runtime and compiler would _both_ find them.
That sounds like the kind of issue you're having.

- Dave



----- Original Message ----- 
From: "Ma, Steve" <address@hidden>
To: "'David Brownell'" <address@hidden>
Cc: <address@hidden>
Sent: Wednesday, December 05, 2001 10:37 AM
Subject: RE: [Classpathx-xml] gnujaxp with JDK1.1.8


> Yes, I have compiled on Solaris with JDK 1.1.8, and it works fine too.
> However with the same command line, it does not compile on Windows JDK
> 1.1.8.  
> Have you tried compiling on Windows platform?
> 
> Thanks,
> Steve
> 
> -----Original Message-----
> From: David Brownell [mailto:address@hidden 
> Sent: Thursday, November 29, 2001 8:46 PM
> To: Ma, Steve; address@hidden
> Subject: Re: [Classpathx-xml] gnujaxp with JDK1.1.8
> 
> Looks like something odd in your environment, or maybe
> a Win32 issue.  I just tried this on a Linux JDK 1.1.8, and
> it compiled just fine.  You're sure that "gnujaxp.jar" is in
> the current directory, yes?  Not installed in "ext" so jdk 1.2
> picks it up no matter how broken the classpath is?
> 
> By the way, it's a bad idea to pass JDK 1.1.8 "classes.zip"
> to the JDK 1.2 javac!
> 
> FYI I've also put back the source changes (to CVS) that
> prevented compiling with the JDK 1.1.8 javac.  That
> Makefile still has problems (since "javac" behaves so
> differently) but that's for another day (maybe).
> 
> - Dave
> 
> 
> ----- Original Message ----- 
> From: "Ma, Steve" <address@hidden>
> To: "'David Brownell'" <address@hidden>; <address@hidden>
> Sent: Thursday, November 29, 2001 12:14 PM
> Subject: RE: [Classpathx-xml] gnujaxp with JDK1.1.8
> 
> 
> > Just simply trying to import the library and compile the code.  Here is
a
> > simple code and command line of what I tried:
> > 
> > 
> > gnuJaxpTest.java
> > -------------
> > import gnu.xml.aelfred2.JAXPFactory;
> > 
> > public class gnuJaxpTest {
> >   public gnuJaxpTest() {
> >   }
> > 
> >   public static void main(String[] args) {
> > System.out.println("Hello World");
> >   }
> > }
> > -------------------
> > 
> > Command line output:
> > ----------------
> > Z:\test\gnujaxp>c:\jdk1.1.8\bin\javac.exe -classpath
> > .;c:\jdk1.1.8\lib\classes.z
> > ip;gnujaxp.jar gnuJaxpTest.java
> > gnuJaxpTest.java:1: Class gnu.xml.aelfred2.JAXPFactory not found in
> import.
> > import gnu.xml.aelfred2.JAXPFactory;
> >        ^
> > 1 error
> > 
> > Z:\test\gnujaxp>c:\jdk1.2.2\bin\javac.exe -classpath
> > .;c:\jdk1.1.8\lib\classes.z
> > ip;gnujaxp.jar *.java
> > 
> > Z:\test\gnujaxp>
> > 
> > ------------------------
> > 
> > Is there something that I'm missing?
> > 
> > steve
> > 
> > -----Original Message-----
> > From: David Brownell [mailto:address@hidden 
> > Sent: Thursday, November 29, 2001 3:04 PM
> > To: Ma, Steve; address@hidden
> > Subject: Re: [Classpathx-xml] gnujaxp with JDK1.1.8
> > 
> > Hmm, I'll have to see what's up.  I'd expect an issue
> > compiling the relse on JDK 1.1 (problem to be fixed),
> > but not actually running it.  I'll send a note when the
> > compile problem is gone, and at that point I'll know it
> > runs there (again :) at least for me.
> > 
> > You're sure you've set the class path up right?  What was
> > the particular "trouble" you had?
> > 
> > - Dave
> > 
> > 
> > ----- Original Message ----- 
> > From: "Ma, Steve" <address@hidden>
> > To: <address@hidden>
> > Sent: Thursday, November 29, 2001 11:53 AM
> > Subject: [Classpathx-xml] gnujaxp with JDK1.1.8
> > 
> > 
> > > Does this release work with JDK1.1.8? I have trouble compiling the
> > > statement:
> > >  
> > > import gnu.xml.aelfred2.JAXPFactory;
> > >  
> > > when using JDK1.1.8, but does not happen with JDK1.2.2 or 1.3.
> > >  
> > > Thanks,
> > > Steve
> > >