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alan akers · Guest

Hi. I am a newbie w/JBuilder. In JDeveloper it's easy to create a new library, and to locate one and include it in projects. In JBuilder, I can't figure it out.

I downloaded the JAI JRE and JDK, and added them to the default JDK library that comes with JBuilder. However, whenever I try to make a .java file that includes these classes I get nothing but errors. I'd really appreciate any help offered here. How do I even check to see what classes it sees? I've looked in the class browser, but I don't see the jai jars there. I see them in JDeveloper tho...

Alan Akers · Guest

Hi Bill:

Thanks for the reply. That's what's strange. I've worked w/java for a long time, so I know the jars have been included inside the /jbuilder9/lib/ext/ folder. I can see the jars there, and it's the jdk that is selected for the project. In fact, it's the DEFAULT jdk...

I had tried what you suggested, but that didn't work. I resolved this by finding the create project from current sources icon, and pointing it in the right direction.

But it truly bothers me that there is not any way of seeing how it's finding packages. I checked the project settings after I ran the wizard, and there was NOTHING different from the project I created that genned all the package not found errors. So I have it working now (well sort of), but I'm not any wiser. I still don't see how JBuilder is selecting/finding packages and classes..

"Bill Joy" <wcjoy (AT) pacbell (DOT) net> wrote:

Lori M Olson (TeamB) · Guest

Alan Akers wrote:

Alan Akers · Guest

Hi Bill:

Heck. _I_ didn't put it there, the Sun INSTALLER put it there. So it this isn't a tested configuration, I'd have to wonder how well tested this product is. I've already found a number of bugs, and I'd consider this one, since this is part of a normal install by a SUN JDK/JRE. What's the point of having a library that is the DEFAULT LIBRARY used to compile all apps, if it can't act like a normal SUN lib? If this is a problem, then you should be talking w/Sun. Not handling the normal install of a JDK is sorta bizarre.

Other bugs:

1. There is no way to delete a file from a project. I right click on a .Java file, and there is no option to Remove. Now mayber it's someplace else, but I can't believe that useability testing would have this 'feature' make testers happy.

2. You cannot rename a project. You can _try_, but since it doesn't rename the output library, it's worthless. And when you try to change the output library, by selecting right click on project, Settings..., Paths..Libraries, click Edit, and change the library name, you get errors, since it doesn't cascade the changed library name.

Both of these errors worry me. The reason why we are evaluating JBuilder is because JDeveloper had too many bugs for us to feel comfortable building commercial apps with it. There's also a bug when I try to change the default formatting settings...it doesn't tab correctly.

These are things I've found in just ONE day of using JBuilder. If there are workarounds for these I'd like to hear them, but for a VERSION 9 you'd think these simple bugs would have been fixed by now... Worrisome...I do appreciate the timely responses here tho...

"Bill Joy" <wcjoy (AT) pacbell (DOT) net> wrote:

Bill Joy · Guest

I think it should be perfectly understandable that JBuilder is only
certified on the JDK it ships with and that you modify that relationship
at your own risk.

If you want to use a JDK other than the one that JBuilder ships with,
then fine -- install it, modify to your heart's content, and point your
project at.

"Alan Akers" <aaava (AT) yahoo (DOT) com> wrote

Alan Akers · Guest

Hi Bill:

Well, I'd agree w/you, except for the fact that I wasn't having this problem only with the JAI. When I attempted to created a new project, create a file with the same name as the file I wanted to add, and then copied and pasted the contents of a java file of the same name located somewhere else that I wanted to include in the project, I kept receiving compile errors, stating that it couldn't not find any of the javax imports...though the imports were exactly the same as those in the genned java file created by JBuilder, and the location of the file was obviously in the same place since I had pasted into it.

Now I realize that this isn't the best way to do this, but I would like to understand WHY doing this was a problem. I've never had this problem before, so it's hard for me to evaluate something when I don't understand why things don't work. The other posts I've made reflect this.

"Bill Joy" <wcjoy (AT) pacbell (DOT) net> wrote:

Bill Joy · Guest

Projects don't inherit the classpath that JBuilder runs with. It would
certainly be limiting if that was true.

Each project controls its own classpath using a combination of a JDK
selection, selected libraries pointing at JARs or directories of class
files, and one or more source paths where their compiled classes go to a
single output path.

"Alan Akers" <aaava (AT) yahoo (DOT) com> wrote

Alan Akers · Guest

Hi Bill:

I do appreciated your responses. Just wanted you to know this. That's all well and good, but the other IDE's we've worked w/in the past, at least allow us to _see_ what the classpaths are. Where can I see how JBuilder is making these decision? I can't even see the JAI that it now somehow 'see's, where before I imported the war, and tried _multiple_ ways of getting it to see it, (including adding the JAI jars to the PC default version of the Java JDK....it still did not work as you suggested I do before). The only way I got JBuilder to 'see' the JAI jars, was by 'importing' the war file as a project.

And I've SCOURED EVERYWHERE, and cannot see where it displays that it is actually using these jars. In JDeveloper it's obvious where all the libs are. This is something I've spent hours on w/JBuilder that I've never had this even arise as an issue before...

Could somewhere please tell me specifically where to find how JBuilder resolves it's classpath and libraries.

Thanks

"Bill Joy" <wcjoy (AT) pacbell (DOT) net> wrote:

Bill Joy · Guest

Use Search | Find Classes to see what is on your classpath. Obviously
Project | Project Properties | Paths defines it.

"Alan Akers" <aaava (AT) yahoo (DOT) com> wrote

Alan Akers · Guest

Hi Bill:

Thanks. That specific replay answered my question. But is there no option to just see the actual classpath in text form? You know, like 'CLASSPATH=yada;yada'? Is it stored in a file somewhere that we can check for? That would help...

Thanks.

"Bill Joy" <wcjoy (AT) pacbell (DOT) net> wrote:

Ken Warner · Guest

I don't know if this will be an answer to your question but
if Help -> About JBuilder you will get a two tab dialog
box. If you choose the Info tab you will see a bunch of
system variables with class paths.

Maybe what you want is in there...

Alan Akers wrote:

Bill Joy · Guest

A command line is only seen when doing a Run or Debug.

"Alan Akers" <aaava (AT) yahoo (DOT) com> wrote

Alan Akers · Guest

Hi Ken:

Thanks, that's definitely helpful of a sort, though it doesn't let me see the classpath for a particular project, it lets me see where it's looking for stuff generally. thanks!

I'd still like to know if there's a file somewhere that contains this info, just so I can respond at the evaluation meeting...

Ken Warner <kwarner (AT) cts (DOT) com> wrote: