Oracle错误957,oracle 使用netca报错

[oracle@nexus ~]$ netca

Oracle Net Services Configuration:

Error: null

Check the trace file for details: /opt/oracle/cfgtoollogs/netca/trace_OraDb11g_home1-1609063PM3137.log

Oracle Net Services configuration failed.  The exit code is 1

[oracle@nexus ~]$ tail /opt/oracle/cfgtoollogs/netca/trace_OraDb11g_home1-1609063PM3137.log

[main] [ 2016-09-06 15:31:38.782 CST ] [OracleHome.getVersion:936]  OracleHome.server.getVersion Version: 11.2.0.3.0

[main] [ 2016-09-06 15:31:38.783 CST ] [OracleHome.getVersion:957]  Current Version From Inventory: 11.2.0.3.0

[main] [ 2016-09-06 15:31:38.783 CST ] [OPSUtil.getHomeVersion:452]  returning oracleHome Version = 11.2.0.3.0

[main] [ 2016-09-06 15:31:38.788 CST ] [OracleHome.getVersion:889]  OracleHome.getVersion called.  Current Version: 11.2.0.3.0

[main] [ 2016-09-06 15:31:38.789 CST ] [OracleHome.getVersion:957]  Current Version From Inventory: 11.2.0.3.0

[main] [ 2016-09-06 15:31:38.789 CST ] [InitialSetup.:4071]  Admin location is: /opt/oracle/11g/network/admin

[main] [ 2016-09-06 15:31:38.877 CST ] [ConfigureProfile.setProfileParam:136]  Setting ADR_BASE: /opt/oracle

java.lang.NullPointerException

at oracle.ewt.lwAWT.BufferedApplet.(Unknown Source)

at oracle.net.ca.NetCA.(NetCA.java:443)

at oracle.net.ca.NetCA.main(NetCA.java:429)