java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at org.apache.geronimo.javamail.store.imap.connection.IMAPTaggedResponse.isBAD(IMAPTaggedResponse.java:86)
at org.apache.geronimo.javamail.store.imap.connection.IMAPConnection.receiveResponse(IMAPConnection.java:410)
at org.apache.geronimo.javamail.store.imap.connection.IMAPConnection.sendCommand(IMAPConnection.java:324)
at org.apache.geronimo.javamail.store.imap.connection.IMAPConnection.processLogin(IMAPConnection.java:598)
at org.apache.geronimo.javamail.store.imap.connection.IMAPConnection.processPlainAuthentication(IMAPConnection.java:537)
at org.apache.geronimo.javamail.store.imap.connection.IMAPConnection.login(IMAPConnection.java:488)
at org.apache.geronimo.javamail.store.imap.connection.IMAPConnection.protocolConnect(IMAPConnection.java:176)
at org.apache.geronimo.javamail.store.imap.connection.IMAPConnectionPool.createPoolConnection(IMAPConnectionPool.java:211)
at org.apache.geronimo.javamail.store.imap.connection.IMAPConnectionPool.protocolConnect(IMAPConnectionPool.java:177)
at javax.mail.Service.connect(Service.java:251)

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