store a NSS PKCS11 PrivateKeyEntry to JKS KeyStore throws confusing NPE

if you want to store a PrivateKeyEntry previously taken out of a NSS PKCS11 keystore into a JKS keystore, the key material will be taken out and reprotected. since a NSS PrivateKey is sensitive, getEncoded() will return null. setEntry() will finally throw out a NPE instead of a KeyStoreException that explains why.

###@###.### 2005-05-13 04:03:43 GMT