Posted by twasyl on Jul 12, 2014; 8:32am
URL: https://discuss.asciidoctor.org/AsciidoctorJ-error-when-using-in-a-OSGi-bundle-tp1910.html

Hi all,

I encountered a problem when I try to use AsciidoctorJ in a OSGi bundle (I use Apache Felix for the OSGi container). Indeed, I'm developing SlideshowFX (https://bitbucket.org/twasyl/slideshowfx/) which allows to integrate OSGi bundle that provides the support for a markup language to define slide's content. And I would like to have a OSGi bundle for supporting asciidoctor. I'm using:
- slf4j-api-1.7.7.jar
- slf4j-simple-1.7.7.jar
- jruby-complete-1.7.13.jar
- asciidoctorj-1.5.0.preview.7.jar

I have the following code to convert an asciidoctor String into an HTML one:

---
final Asciidoctor asciidoctor = Asciidoctor.Factory.create(ClassLoader.getSystemClassLoader());

return asciidoctor.render(markupString,new HashMap<String, Object>());
---

The conversion is fine when doing it in a unit test. But, when I call the same code (when it is packaged in the OSGi bundle) I get an exception:

---
Caused by: java.lang.NoClassDefFoundError: sun/misc/Unsafe
        at org.jruby.RubyEncoding.<clinit>(RubyEncoding.java:204)
        at org.jruby.RubyThread$Status.<init>(RubyThread.java:144)
        at org.jruby.RubyThread$Status.<clinit>(RubyThread.java:139)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        at java.lang.Class.getEnumConstantsShared(Class.java:3209)
        at java.lang.System$2.getEnumConstantsShared(System.java:1246)
        at java.util.EnumMap.getKeyUniverse(EnumMap.java:752)
        at java.util.EnumMap.<init>(EnumMap.java:138)
        at org.jruby.Ruby.<init>(Ruby.java:4898)
        at org.jruby.Ruby.newInstance(Ruby.java:320)
        at org.jruby.embed.internal.SingletonLocalContextProvider.getRuntime(SingletonLocalContextProvider.java:95)
        at org.asciidoctor.internal.JRubyAsciidoctor.createJRubyAsciidoctorInstance(JRubyAsciidoctor.java:143)
        at org.asciidoctor.internal.JRubyAsciidoctor.create(JRubyAsciidoctor.java:84)
        at org.asciidoctor.Asciidoctor$Factory.create(Asciidoctor.java:687)
        at com.twasyl.slideshowfx.markup.asciidoctor.AsciidoctorMarkup.convertAsHtml(AsciidoctorMarkup.java:56)
        at com.twasyl.slideshowfx.controllers.SlideshowFXController.updateSlide(SlideshowFXController.java:282)
        at com.twasyl.slideshowfx.controllers.SlideshowFXController.updateSlideWithText(SlideshowFXController.java:264)
---

I tried to manually load the class this way, before creating the Asciidoctor object:
---
try {
  ClassLoader.getSystemClassLoader().loadClass("sun.misc.Unsafe");
} catch (ClassNotFoundException e) {
  LOGGER.log(Level.SEVERE, "Can not load classes required by the AsciidoctorMarkup", e);
}
---

No exception is thrown but it still doesn't work. I don't know where to look to find how to solve this problem.
I'm also using JDK 8.0_05.

Many thanks in advance