Allatori Java Obfuscator belongs to the second generation obfuscators' family and has all spectrum of opportunities on protection of your intellectual property. In the Allatori arsenal there are the following protection methods: name obfuscation, flow obfuscation, debug info obfuscation, string encryption, watermarking. The obfuscator is free for educational and non-commercial projects. The new version has additional configuration property 'random-seed', fixed method template matching, fixed classpath handling, optimized log file writing and optimized resource management. Allatori Java Obfuscator web site and demo version download

what are the advantages of this one?

In the Java world community which is dominated by Open Source products: who really needs obfuscators? Who has "intellectual properties" to defend (and himself uses the communities open source)???

Well if you want add some security to your custom classes packed in jar, obfuscator is needed. For example, some banking stuff.

If you are doing "some banking stuff", I would hope that you trust your client and that your client trusts you. Basically, your point has no value. That is a completely different problem domain.