[ 
https://issues.apache.org/jira/browse/HADOOP-11864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14506706#comment-14506706
 ] 

Steve Loughran commented on HADOOP-11864:
-----------------------------------------

see 
[https://builds.apache.org/view/H-L/view/Hadoop/job/Hadoop-common-trunk-Java8/173/console]



{code}
                     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:99:
 warning: no description for @param
   * @param pk
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:107:
 error: self-closing element not allowed
   * <p/>
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:201:
 error: @param name not found
   * @param serializedJWT
            ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:201:
 warning: no description for @param
   * @param serializedJWT
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:202:
 warning: no description for @param
   * @param req
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:226:
 warning: no description for @param
   * @param request
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:227:
 warning: no description for @param
   * @param response
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:248:
 warning: no description for @param
   * @param jwtToken
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:250:
 error: exception not thrown: 
org.apache.hadoop.security.authentication.client.AuthenticationException
   * @throws AuthenticationException
             ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:250:
 warning: no description for @throws
   * @throws AuthenticationException
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:275:
 warning: no description for @param
   * @param jwtToken
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:276:
 error: exception not thrown: 
org.apache.hadoop.security.authentication.client.AuthenticationException
   * @throws AuthenticationException
             ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:276:
 warning: no description for @throws
   * @throws AuthenticationException
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:278:
 warning: no @return
  protected boolean validateSignature(SignedJWT jwtToken) {
                    ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:344:
 warning: no description for @param
   * @param jwtToken
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:345:
 error: exception not thrown: 
org.apache.hadoop.security.authentication.client.AuthenticationException
   * @throws AuthenticationException
             ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:345:
 warning: no description for @throws
   * @throws AuthenticationException
     ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:347:
 warning: no @return
  protected boolean validateExpiration(SignedJWT jwtToken) {
                    ^
/home/jenkins/jenkins-slave/workspace/Hadoop-common-trunk-Java8/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/JWTRedirectAuthenticationHandler.java:62:
 error: self-closing element not allowed
 * <p/>
   ^
{code}

fixing up the undocumented params is something nice; fixing the end tags 
critical

> JWTRedirectAuthenticationHandler breaks java8 javadocs
> ------------------------------------------------------
>
>                 Key: HADOOP-11864
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11864
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 3.0.0
>         Environment: Jenkins on Java8
>            Reporter: Steve Loughran
>            Assignee: Larry McCay
>
> Jenkins on Java8 is failing as {{JWTRedirectAuthenticationHandler}} has 
> {{<p/>}} tags in it, something javadoc on java8 considers illegal



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