Consider moving away from JAXB, to be Android friendly

I’m writing an Android app that uses openkeepass. When I read/write a DB, I see:

java.lang.ClassNotFoundException: Didn't find class "javax.xml.bind.JAXB" on path: DexPathList[[zip file "/data/app/tf.tom.myapplication-1/base.apk"],nativeLibraryDirectories=[/data/app/tf.tom.myapplication-1/lib/x86, /vendor/lib, /system/lib]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
    at de.slackspace.openkeepass.xml.KeePassDatabaseXmlParser.toXml(KeePassDatabaseXmlParser.java:18) 
    at de.slackspace.openkeepass.KeePassDatabase.write(KeePassDatabase.java:426) 

The reason is that Android’s javax.xml does provide the entirety of JAXB, nor does Android allow apps to include JARs that are in javax.*

This was news to me, and pretty disappointing.

Consequently, if libraries wish to be Android friendly, they should choose XML libraries other than JAXB, such as Jackson.

Would you be willing to do this? I can provide a PR, when I’m not busy.

[cternes]

@vhschlenker I’ve managed to switch to SimpleXML on the new branch ‘feature-simplexml’. Could you help me and try if this works better on Android?

[cternes]

I’ve fixed the issues with the equals tests and merged to master. I think the exclusions should be made in the android project itself as they are purely android related.