HADOOP-15291. TestMiniKdc fails on Java 9
Signed-off-by: Akira Ajisaka <aajisaka@apache.org>
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@ -165,7 +165,8 @@ public void testKerberosLogin() throws Exception {
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loginContext.logout();
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} finally {
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if (loginContext != null) {
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if (loginContext != null && loginContext.getSubject() != null
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&& !loginContext.getSubject().getPrincipals().isEmpty()) {
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loginContext.logout();
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}
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}
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