remove HttpException NPE possibility

java.lang.NullPointerException: null
  at org.apache.http.HttpException.clean(HttpException.java:48) ~[httpcore-4.4.10.jar:4.4.10]
  at org.apache.http.HttpException.<init>(HttpException.java:105) ~[httpcore-4.4.10.jar:4.4.10]
  at org.apache.hive.jdbc.HttpKerberosRequestInterceptor.addHttpAuthHeader(HttpKerberosRequestInterceptor.java:67) ~[hive-jdbc-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.jdbc.HttpRequestInterceptorBase.process(HttpRequestInterceptorBase.java:74) ~[hive-jdbc-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:133) ~[httpcore-4.4.10.jar:4.4.10]
  at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:183) ~[httpclient-4.5.6.jar:4.5.6]
  at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.6.jar:4.5.6]
  at org.apache.http.impl.execchain.ServiceUnavailableRetryExec.execute(ServiceUnavailableRetryExec.java:85) ~[httpclient-4.5.6.jar:4.5.6]
  at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.6.jar:4.5.6]
  at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.6.jar:4.5.6]
  at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.6.jar:4.5.6]
  at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.6.jar:4.5.6]
  at org.apache.thrift.transport.THttpClient.flushUsingHttpClient(THttpClient.java:251) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.thrift.transport.THttpClient.flush(THttpClient.java:313) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.thrift.TServiceClient.sendBase(TServiceClient.java:73) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.thrift.TServiceClient.sendBase(TServiceClient.java:62) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.service.rpc.thrift.TCLIService$Client.send_OpenSession(TCLIService.java:170) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.service.rpc.thrift.TCLIService$Client.OpenSession(TCLIService.java:162) ~[hive-exec-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.jdbc.HiveConnection.openSession(HiveConnection.java:862) ~[hive-jdbc-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.jdbc.HiveConnection.<init>(HiveConnection.java:320) [hive-jdbc-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:94) [hive-jdbc-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at java.sql.DriverManager.getConnection(DriverManager.java:664) [?:1.8.0_191]
  at java.sql.DriverManager.getConnection(DriverManager.java:208) [?:1.8.0_191]
  at org.apache.hive.beeline.DatabaseConnection.connect(DatabaseConnection.java:145) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.DatabaseConnection.getConnection(DatabaseConnection.java:209) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.Commands.connect(Commands.java:1679) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.Commands.connect(Commands.java:1574) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_191]
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_191]
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191]
  at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191]
  at org.apache.hive.beeline.ReflectiveCommandHandler.execute(ReflectiveCommandHandler.java:57) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.BeeLine.execCommandWithPrefix(BeeLine.java:1494) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.BeeLine.dispatch(BeeLine.java:1533) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.BeeLine.execute(BeeLine.java:1393) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.BeeLine.begin(BeeLine.java:1163) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.BeeLine.begin(BeeLine.java:1111) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.BeeLine.mainWithInputRedirection(BeeLine.java:555) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at org.apache.hive.beeline.BeeLine.main(BeeLine.java:537) [hive-beeline-4.0.0-SNAPSHOT.jar:4.0.0-SNAPSHOT]
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_191]
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_191]
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191]
  at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191]
  at org.apache.hadoop.util.RunJar.run(RunJar.java:318) [hadoop-common-3.1.2.jar:?]
  at org.apache.hadoop.util.RunJar.main(RunJar.java:232) [hadoop-common-3.1.2.jar:?]