Just wanted to confirm that unzipping your jar files (jexplorer-1.9.jar, comfyj-2.4.jar, jniwrap-3.6.1.jar) using a OSX then repacking so we can sign them was okay? Unpacking on windows comes up with warnings about replacing file.
Please note that we do not recommend you to re-jar'ing JExplorer library because we obfuscate it. JExplorer JAR file may contain files with case sensitive names. In other words it may contain files such as a.class and A.class in a same package due to obfuscation. But when you extract the contents of this JAR to a case insensitive file system such files just got overwritten by each other and a required file simply disappears. It’s possible, for example, when you extract a contents of a JAR file to some directory on a Windows system.