HADOOP-14659. UGI getShortUserName does not need to search the Subject. Contributed by Daryn Sharp.
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@ -1678,10 +1678,7 @@ public class UserGroupInformation {
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* @return the user's name up to the first '/' or '@'.
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*/
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public String getShortUserName() {
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for (User p: subject.getPrincipals(User.class)) {
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return p.getShortName();
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}
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return null;
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return user.getShortName();
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}
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public String getPrimaryGroupName() throws IOException {
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