Java JAR deobfuscation

I have a JAR file with 20-30 class files that need to be deobfuscated so that they are in .java form (and capable of being JAR again). The majority of the classes are small in size except for the mudclient. Job would no take longer than 1 day for an experienced. Java programmer. this game is just a private server so the source has been released and updated by them from [login to view URL] attached is the jar i need deobfuscated so that it can be recompiled with no errors and work like the normal client. 2nd need an auto-deobfuscator of the game so i can deob the jar after each update