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javax.net.ssl.SSLException: java.lang.NullPointerException at sun.security.ssl.Alerts.getSSLException(Alerts.java:208) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1836) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1794) at sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1777) at sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1703) at sun.security.ssl.AppInputStream.read(AppInputStream.java:113) at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283) at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325) at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177) at java.io.InputStreamReader.read(InputStreamReader.java:184) at java.io.BufferedReader.fill(BufferedReader.java:154) at java.io.BufferedReader.readLine(BufferedReader.java:317) at java.io.BufferedReader.readLine(BufferedReader.java:382) at com.mudynamics.security.ssl.SslServer.main(SslServer.java:60)Caused by: java.lang.NullPointerException at sun.security.ssl.HandshakeMessage$CertificateRequest.<init>(HandshakeMessage.java:1269) at sun.security.ssl.ServerHandshaker.clientHello(ServerHandshaker.java:839) at sun.security.ssl.ServerHandshaker.processMessage(ServerHandshaker.java:167) at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868) at sun.security.ssl.Handshaker.process_record(Handshaker.java:804) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:966) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1262) at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:816) at sun.security.ssl.AppInputStream.read(AppInputStream.java:102) ... 8 more