Eclipse subversion Problem: Javahl interface is not available. Check your environment.
so you need to install libsvn-dev and libsvn-java if you have problems in subclipse Window->Preferences->Team-> SVN and choose JavaHL(JNI)
$sudo apt-get install libsvn-dev
$sudo apt-get install libsvn-java
also an good ideea is to tweak the vmargs to include /usr/lib/jni
/opt/eclipse/eclipse -vmargs -Djava.library.path=/usr/lib/jni
or put in in eclipse.ini
here is another article with the same solution