error

[ww102111]

[ERROR] /root/soft/streamingpro/csdn/mongomongo/src/main/java/net/csdn/mongo/Document.java:48: error: self-closing element not allowed
[ERROR] *

[ERROR] ^
[ERROR] /root/soft/streamingpro/csdn/mongomongo/src/main/java/net/csdn/mongo/Document.java:50: error: self-closing element not allowed
[ERROR] *

[ERROR] ^
[ERROR] /root/soft/streamingpro/csdn/mongomongo/src/main/java/net/csdn/mongo/MongoMongo.java:26: error: self-closing element not allowed
[ERROR] *

[ERROR] ^
[ERROR] /root/soft/streamingpro/csdn/mongomongo/src/main/java/net/csdn/mongo/MongoMongo.java:26: warning: empty

tag
[ERROR] *

[ERROR] ^
[ERROR] /root/soft/streamingpro/csdn/mongomongo/src/main/java/net/csdn/mongo/MongoMongo.java:27: error: self-closing element not allowed
[ERROR] *

[ERROR] ^
[ERROR]
[ERROR] Command line was: /root/soft/jdk/jre/../bin/javadoc @options @packages
[ERROR]
[ERROR] Refer to the generated Javadoc files in '/root/soft/streamingpro/csdn/mongomongo/target/apidocs' dir.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
root@ubuntu:~/soft/streamingpro/csdn/mongomongo# [ERROR] Exit code: 1 - /root/soft/streamingpro/csdn/mongomongo/src/main/java/net/csdn/mongo/Criteria.java:20: error: self-closing element not allowed
[ERROR]: command not found

[allwefantasy]

jdk版本的问题么？ 用1.7编译