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    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

Solutions on the web

via openas2 by akwitt
, 1 year ago
org.openas2.WrappedException: java.lang.NullPointerException at at at at at at by: java.lang.NullPointerException at java.util.Hashtable.put( at org.bouncycastle.jce.provider.JDKPKCS12KeyStore.engineSetKeyEntry( at at org.openas2.cert.PKCS12CertificateFactory.addPrivateKey( at at ... 5 more