Hi,
Maximilian Eberl schrieb:
The problem:
I have resources OUTSIDE the jar like config files
that have to be edited by the user and resources IN
the jar, so that the user cannot accidently delete
or willingly replace them. Images, for example.
Using those in a (SWT-)class would look like:
Image img01 = new Image(display, "/img/nice.png");
This will look up for a file nice.png in a subfolder
"img" packed in the jar along with the classes:
JAR
--com/mycompany/swtapp/MyClass.class
|-img/nice.png
I'm no SWT expert, but looking at the Image Javadoc [1] it seems this is
a misunderstanding on your side. The constructor you are using is
intended to load images out of files on the filesystem and not to load
an image from a classpath resource. The correct way to load images from
resources would be to get a stream of the resource from a classloader
and then pass this to the image constructor.
Or I'm just reading the javadoc completely wrong or just misunderstood
you ;-)
But ONLY if the manifest File contains an extra
entry
I don't understand why this helps in your situation in the first place
but the need to add the 'img' directory to the classpath should go away
if you load the images properly as classpath resources.
ClassPath: img
If this is not explicitely written in the
MANIFEST.MF, the app throws a NullPointer.
I tried the tag:
<addClasspath>true</addClasspath>
but this only adds the dependency classpath
Do I have to define the img-folder as a
dependency?
I tried to use
<manifest><classPath>img</classPath></manifest>
but mvn didn't recognize the tag (of course).
I had to specify a custom manifest file
with
<manifestFile>src/main/META-INF/MANIFEST.MF</manifestFile>
looking like this:
Main-Class: com/mycompany/swtapp/App
Class-Path: img
just for the simple Task of adding a
ClassPath entry to the manifest file.
OK, it did what I expected, but isn't there a
more elegant way to do it? For example a simple
<classPathEntry>-Tag in the archiver plugin
could do the work.
-Tim
[1]
http://help.eclipse.org/stable/nftopic/org.eclipse.platform.doc.isv/reference/api/org/eclipse/swt/graphics/Image.html
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