On 11/4/10 12:14, Thiébault Benoît wrote:
I tried to add an apple.* in the Import-Package tag, but it does not work.
To do this, you'd need to configure the system bundle to export the
packages you need, e.g.:
org.osgi.framework.system.packages.extra=apple.awt
Then your bundle could import it.
Anyway, that would have make my bundle OSX-dependent which is not the idea in
the end (I want a multi-platform bundle, using fragments... next step of my
work)
You could make the import optional, I suppose, but that really wouldn't
help in this situation. If you create a fragment, then the fragment
could import apple.awt.
-> richard
Benoît
Le 4 nov. 2010 à 17:06, Richard S. Hall a écrit :
On 11/4/10 11:58, Richard S. Hall wrote:
On 11/4/10 11:45, Richard S. Hall wrote:
On 11/4/10 11:21, Thiébault Benoît wrote:
Thanks Richard !
Can I say I love you?
(blush) Thank you. ;-)
"org.osgi.framework.bootdelegation=*" did the work and my VTK bundle works
perfectly now.
Just to understand what I just did, what is this variable doing?
Bundle class loaders only make java.* packages from the boot class path
available to bundles by default. The normal Java class loader makes everything
available by default. Setting this property to * makes a bundle class loader
behave like a normal Java class loader (which isn't very modular).
Regarding the processor, I indeed have a Core2Duo proc, which is 64bits. The
VTK version I compiled is 64bits as well.
Using boot delegation is generally bad practice. If you can help me get a
version of this bundle that works on my machine, then I can try to see if I can
get this to work properly without boot delegation.
Strange thing, though, my processor is a Intel Core 2 Duo too, it says, so I'm
not sure why it doesn't work.
Ok, I got it to work by starting Java like this:
java -d64 -jar bin/felix.jar
It looks like the bundle is being asked for apple.awt.ComponentModel, so it is
sufficient to do:
org.osgi.framework.bootdelegation=apple.*
Which is better than boot delegating everything. However, I will try to look
into it a little further to see if I can get it to work without boot delegation
at all.
-> richard
-> richard
Kind regards, and again thank you very much
Benoît
Le 4 nov. 2010 à 16:06, Richard S. Hall a écrit :
On 11/4/10 10:43, Thiébault Benoît wrote:
Thank you Richard,
I added "processor=x86_64" and it "worked". I now have the same error message
than with Equinox :-)
When I add like you "processor=x86", it crashes, but my error message is not as
explicit as yours:
org.osgi.framework.BundleException: Unresolved constraint in bundle
test-osgi-vtk [5]: No matching native libraries found.
It appears that you have a different processor than me, which is why x86
doesn't work for you.
I have two questions regarding this "processor" issue:
- Could it be possible in future versions of felix to have a more detailed
error message for this issue?
It is difficult to get a detailed error message, because the selecting of
matching libraries happens earlier than the resolve, so by then we don't know
why they didn't match.
- Is it a bug or a feature? I mean, what does the OSGi standard say about the
"processor": is it mandatory (in this case, Felix is right to crash) or
optional (and its a felix bug)?
It didn't crash, it just didn't resolve the bundle.
I'm not sure about whether requiring processor is correct or not, so I will
look into it, but it would definitely be a best practice.
Now, regarding my VTK-specific error, does anyone have any clue what OSGi does
that makes the pure Java application work and not the OSGi bundle?
I have looked for an answer to this problem for days and can't find what causes
it (and how to solve it)
Any hint is thus very welcome :-)
Hard to say. For the fun of it, try editing conf/config.properties to include:
org.osgi.framework.bootdelegation=*
And see if that has any impact.
-> richard
Kind regards,
Benoît
Le 4 nov. 2010 à 15:26, Richard S. Hall a écrit :
It appears that Felix treats processor as a required attribute on the native library, so you have
to specify "processor=FOO" on the end of your Bundle-NativeLibrary header. I added
"processor=x86" and got it to resolve on my Mac, but ended up getting errors when I
started it:
Caused by: java.lang.UnsatisfiedLinkError:
/Users/rickhall/Projects/felix-trunk/main/felix-cache/bundle5/version1.1/bundle.jar-lib/0/vtk/osx64b/libvtkproj4.jnilib:
no suitable image found. Did find:
/Users/rickhall/Projects/felix-trunk/main/felix-cache/bundle5/version1.1/bundle.jar-lib/0/vtk/osx64b/libvtkproj4.jnilib:
mach-o, but wrong architecture
Not sure if processor should be required, but it seems like a good idea.
-> richard
On 11/4/10 10:00, Thiébault Benoît wrote:
Hi everyone,
I am currently working on creating an OSGi bundle embedding VTK, the
Visualization ToolKit (http://www.vtk.org), written in C++, on Mac OS X.
I have written an article about my adventures and the related issues I have
encountered so far: http://dev.artenum.com/blog/ben/posts/osgi_vtk_and_macosx
The short story is that by default, the compilation configuration of VTK does
not create and link properly the dynamic libraries on Mac OS X. I thus had to
modify 3 things:
• change the .dylib extensions to .jnilib
• prepend the @loader_path prefix to the library transitive dependencies
• remove the version numbers from the library file names and dependencies.
This way, I managed to execute the bundle without an UnsatisfiedLinkError with
Equinox. I however have a new problem, that seems much more complex to me.
When the bundle starts, it creates a "vtkPanel", which extends the AWT Canvas.
The rendering on the panel is then performed by a native method call that crashes.
WARNING in native
method: JNI call made with exception pending
at vtk.vtkPanel.RenderCreate(Native Method)
at vtk.vtkPanel.Render(vtkPanel.java:166)
- locked<1060ffa88> (a vtk.vtkPanel)
at vtk.vtkPanel.paint(vtkPanel.java:189)
at sun.awt.RepaintArea.paintComponent(RepaintArea.java:276)
at sun.awt.RepaintArea.paint(RepaintArea.java:241)
at apple.awt.ComponentModel.handleEvent(ComponentModel.java:263)
at java.awt.Component.dispatchEventImpl(Component.java:4790)
at java.awt.Component.dispatchEvent(Component.java:4544)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:635)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
FATAL ERROR in
native
method: Bad global or local ref passed to JNI
at vtk.vtkPanel.RenderCreate(Native Method)
at vtk.vtkPanel.Render(vtkPanel.java:166)
- locked<1060ffa88> (a vtk.vtkPanel)
at vtk.vtkPanel.paint(vtkPanel.java:189)
at sun.awt.RepaintArea.paintComponent(RepaintArea.java:276)
at sun.awt.RepaintArea.paint(RepaintArea.java:241)
at apple.awt.ComponentModel.handleEvent(ComponentModel.java:263)
at java.awt.Component.dispatchEventImpl(Component.java:4790)
at java.awt.Component.dispatchEvent(Component.java:4544)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:635)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Invalid memory access of location 0x0 rip=0x1010af1f4
./ben.sh: line 11: 23453 Abort trap java -Xcheck:jni -jar
org.eclipse.osgi_3.6.0.v20100517.jar -console
This native method crashes when calling the jawt.h method
GetDrawingSurfaceInfo(ds), and I have no idea where it may come from.
The pure Java (no OSGi) application works fine, so I thought it could be
Equinox-related. This is why I tried to load the same bundle in Felix.
But here I have a new error message:
org.osgi.framework.BundleException: Unresolved constraint in bundle
test-osgi-vtk [5]: No matching native libraries found.
... and nothing more (even with log level at 4).
How can I know what does not work?
What did I do that is Equinox-compatible and Felix-incompatible? I don't recall
using specific Manifest entries...
Project source code can be downloaded here:
http://dev.artenum.com/blog/ben/download/test-osgi-vtk_zip?action=download&nodecorator
Kind regards,
Benoît
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