First Try With Java

[Bonbon-Chan]

Finnaly I got my pandora . So I decide to give a try to java.

I have install JamVM and I run one of my old Java4K entry... and I get an exception.

"Caused by: java.awt.AWTError: Cannot load AWT toolkit: gnu.java.awt.peer.gtk.GtkToolkit"

gtk ?!? :unsure:

Should I install some gtk library or is it not a good idea to use JamVM ?

 

[Spirit]

You need the classpath libraries too.

I don't know that the differences between jamvm, cocoa and that other vm are.

 

[Bonbon-Chan]

You need the classpath libraries too.

I don't know that the differences between jamvm, cocoa and that other vm are.

Ok. What I have done :

sudo opkg update
sudo opkg install jamvm

Installation of JamVM ok

sudo opkg install classpath

I got :

Installing classpath (0.98-r3.5) to root...
Downloading http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv7a/base/classpath_0.98-r3.5_armv7a.ipk.
Installing libgmp3 (4.2.4-r0.5.5) to root...
Downloading http://www.angstrom-distribution.org/feeds/unstable/ipk/glibc/armv7a/base/libgmp3_4.2.4-r0.5.5_armv7a.ipk.
Configuring libgmp3.
Collected errors:
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavanet.so
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavanet.so.0.0.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavalangmanagement.so.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavalangmanagement.so.0.0.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavaio.so.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavalang.so.0.0.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavalangmanagement.so
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavautil.so
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavanio.so
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavaio.so
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavalang.so.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavalangreflect.so
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavalangreflect.so.0.0.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavautil.so.0.0.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavanio.so.0.0.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavalang.so
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavanet.so.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavanio.so.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavaio.so.0.0.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavalangreflect.so.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * check_data_file_clashes: Package classpath wants to install file /usr/lib/classpath/libjavautil.so.0
	But that file is already provided by package  * check_data_file_clashes: classpath-minimal
 * opkg_install_cmd: Cannot install package classpath.

Jam have allready install some minimal library...

ps: it is fun to post from the Pandora

 

[joseluisjazz]

You can try to either uninstall classpath-minimal before installing classpath, or to install classpath with the option --force-overwrite

 

[Spirit]

You can try to either uninstall classpath-minimal before installing classpath, or to install classpath with the option --force-overwrite

I highly suggest not using --force-overwrite for a simple issue like this. Uninstall classpath-minimal (there is a flag to ignore dependencies so jamvm won't be sad), then install the normal packages.

 

[Bonbon-Chan]

You can try to either uninstall classpath-minimal before installing classpath, or to install classpath with the option --force-overwrite

I highly suggest not using --force-overwrite for a simple issue like this. Uninstall classpath-minimal (there is a flag to ignore dependencies so jamvm won't be sad), then install the normal packages.

classpath-minimal removed
classpath installed

Still the same problem :huh:

 

[Spirit]

Did you install classpath-gtk?

 

[Bonbon-Chan]

Did you install classpath-gtk?

Of course... not :blush:

Thanks it is working now... but it is really slow with JamVM. I will try other VM now I have a better idea of how it works.

In the repo, I have found :
- cacao
- openjdk-6-vm-cacao
- openjdk-6-jre

I hope they will be better optimized for ARM.

 

[Bonbon-Chan]

I have try openjdk-6-jre and it is far better I had just to install this package (i didn't have to deal with classpath) and the speed is far better. But it have crashed several times with AWT.

 

[dflemstr]

The Pandora should really have a JVM included in the NAND by default. ProGuard is useful and all, but if you have to bundle a whole VM with every PND you produce, it isn't going to help as much.