I just upgraded to Mountain Lion (from Snow Leopard) and I'm having all kinds of issues. I can connect to my databases (via same tnsnames file) but I can't run queries or view data. I can even view table listings, but not their data, or meta data (constraints etc). Anyone else having this issue? I'm running v4, but I've also downgraded and tried running 3.2 with the exact same issue. Here's some info:
Message: For input string: ""
$ java -versionjava version "1.7.0_40"
Java(TM) SE Runtime Environment (build 1.7.0_40-b43)
Java HotSpot(TM) 64-Bit Server VM (build 24.0-b56, mixed mode)
Matching Java Virtual Machines (3):
1.7.0_40, x86_64: "Java SE 7" /Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home
1.6.0_51-b11-457, x86_64: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
1.6.0_51-b11-457, i386: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home