The PGPHelper class has compilation error in the latest version of BouncyCastle jar.
I've updated the code:
Added at line 142:
BcKeyFingerprintCalculator bcKeyFingerprintCalculator = new BcKeyFingerprintCalculator();
Line 143:
PGPObjectFactory pgpF = new PGPObjectFactory(in, bcKeyFingerprintCalculator);
I've done similar changes in other methods as well.
Does this work?