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Cairo on HPUX. "Unable to load graphics library" Exception when running SWT application on [message #753106]

Wed, 26 October 2011 12:31

Eclipse User

Hi,
I'm using SWT 3.6.2 (swt-3.6.2-motif-hpux-ia64_32) on HPUX 11i v2.
When I run simple SWT application using Cairo (SWT Snippet281 - draw a multi-gradient) I get following exception:

Exception in thread "main" org.eclipse.swt.SWTException: Unable to load graphics library [Cairo required] (java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
no swt-cairo-motif-3659 in java.library.path
no swt-cairo-motif in java.library.path
Can't load library: /var/tmp/swtlib-32/libswt-cairo-motif-3659.so
Can't load library: /var/tmp/swtlib-32/libswt-cairo-motif.so
)
at org.eclipse.swt.SWT.error(Unknown Source)
at org.eclipse.swt.graphics.Device.checkCairo(Unknown Source)
at org.eclipse.swt.graphics.Pattern.<init>(Unknown Source)
at org.eclipse.swt.graphics.Pattern.<init>(Unknown Source)
at org.eclipse.swt.snippets.Snippet281$1.handleEvent(Snippet281.java:38)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Composite.XExposure(Unknown Source)
at org.eclipse.swt.widgets.Canvas.XExposure(Unknown Source)
at org.eclipse.swt.widgets.Shell.XExposure(Unknown Source)
at org.eclipse.swt.widgets.Widget.windowProc(Unknown Source)
at org.eclipse.swt.widgets.Display.windowProc(Unknown Source)
at org.eclipse.swt.internal.motif.OS._XtDispatchEvent(Native Method)
at org.eclipse.swt.internal.motif.OS.XtDispatchEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.update(Unknown Source)
at org.eclipse.swt.widgets.Shell.setVisible(Unknown Source)
at org.eclipse.swt.widgets.Shell.open(Unknown Source)
at org.eclipse.swt.snippets.Snippet281.main(Snippet281.java:53)
Caused by: java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
no swt-cairo-motif-3659 in java.library.path
no swt-cairo-motif in java.library.path
Can't load library: /var/tmp/swtlib-32/libswt-cairo-motif-3659.so
Can't load library: /var/tmp/swtlib-32/libswt-cairo-motif.so

at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
at org.eclipse.swt.internal.cairo.Cairo.<clinit>(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:173)
... 19 more

I have Cairo library installed.
The problem seems to be caused by libswt-cairo-motif-3659.so missing in SWT.
swt.jar on Linux and AIX contains libswt-cairo-motif-3659.so file but in HPUX swt.jar it's missing.
Is this the problem and SWT on HPUX does not support Cairo functionality or is problem somewhere else?

Thanks,
Milan

Re: Cairo on HPUX. "Unable to load graphics library" Exception when running SWT ap [message #754290 is a reply to message #753106]

Tue, 01 November 2011 16:36

Eclipse User

Hi,

Yes, this is the problem, swt's hpux port does not provide the required
library. This should definitely change in the eclipse/swt 3.8 release,
because one of its major work items is to change all graphics work on
gtk to use cairo (the hpux port only comes in a gtk flavour as of
eclipse 3.7). Sorry that this does not help with your current 3.6.2
install.

Grant

On 10/26/2011 12:31 PM, Milan Vahala wrote:
> Hi,
> I'm using SWT 3.6.2 (swt-3.6.2-motif-hpux-ia64_32) on HPUX 11i v2.
> When I run simple SWT application using Cairo (SWT Snippet281 - draw a
> multi-gradient) I get following exception:
>
> Exception in thread "main" org.eclipse.swt.SWTException: Unable to load
> graphics library [Cairo required] (java.lang.UnsatisfiedLinkError: Could
> not load SWT library. Reasons: no swt-cairo-motif-3659 in java.library.path
> no swt-cairo-motif in java.library.path
> Can't load library: /var/tmp/swtlib-32/libswt-cairo-motif-3659.so
> Can't load library: /var/tmp/swtlib-32/libswt-cairo-motif.so
> )
> at org.eclipse.swt.SWT.error(Unknown Source)
> at org.eclipse.swt.graphics.Device.checkCairo(Unknown Source)
> at org.eclipse.swt.graphics.Pattern.<init>(Unknown Source)
> at org.eclipse.swt.graphics.Pattern.<init>(Unknown Source)
> at org.eclipse.swt.snippets.Snippet281$1.handleEvent(Snippet281.java:38)
> at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
> at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
> at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
> at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
> at org.eclipse.swt.widgets.Composite.XExposure(Unknown Source)
> at org.eclipse.swt.widgets.Canvas.XExposure(Unknown Source)
> at org.eclipse.swt.widgets.Shell.XExposure(Unknown Source)
> at org.eclipse.swt.widgets.Widget.windowProc(Unknown Source)
> at org.eclipse.swt.widgets.Display.windowProc(Unknown Source)
> at org.eclipse.swt.internal.motif.OS._XtDispatchEvent(Native Method)
> at org.eclipse.swt.internal.motif.OS.XtDispatchEvent(Unknown Source)
> at org.eclipse.swt.widgets.Display.update(Unknown Source)
> at org.eclipse.swt.widgets.Shell.setVisible(Unknown Source)
> at org.eclipse.swt.widgets.Shell.open(Unknown Source)
> at org.eclipse.swt.snippets.Snippet281.main(Snippet281.java:53)
> Caused by: java.lang.UnsatisfiedLinkError: Could not load SWT library.
> Reasons: no swt-cairo-motif-3659 in java.library.path
> no swt-cairo-motif in java.library.path
> Can't load library: /var/tmp/swtlib-32/libswt-cairo-motif-3659.so
> Can't load library: /var/tmp/swtlib-32/libswt-cairo-motif.so
>
> at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
> at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
> at org.eclipse.swt.internal.cairo.Cairo.<clinit>(Unknown Source)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:173)
> ... 19 more
>
> I have Cairo library installed. The problem seems to be caused by
> libswt-cairo-motif-3659.so missing in SWT. swt.jar on Linux and AIX
> contains libswt-cairo-motif-3659.so file but in HPUX swt.jar it's missing.
> Is this the problem and SWT on HPUX does not support Cairo functionality
> or is problem somewhere else?
>
> Thanks,
> Milan

Re: Cairo on HPUX. "Unable to load graphics library" Exception when running SWT applicatio [message #754318 is a reply to message #753106]

Wed, 02 November 2011 01:32

Eclipse User

Finally, I was able to find solution to this problem.
I compiled swt-cairo library on HP-UX from sources and added it to swt.jar.

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