HDFS-13261. Fix incorrect null value check. Contributed by Jianfei Jiang.

2018-03-15 11:12:25 +08:00 · 2018-03-15 11:12:25 +08:00 · 3fad968624
commit 3fad968624
parent 299b40ff8b
1 changed files with 1 additions and 1 deletions
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/AdminHelper.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/AdminHelper.java
@ -145,7 +145,7 @@ static class HelpCommand implements Command {
    private final Command[] commands;

    public HelpCommand(Command[] commands) {
-      Preconditions.checkNotNull(commands != null);
+      Preconditions.checkNotNull(commands, "commands cannot be null.");
      this.commands = commands;
    }