HBASE-15311 Prevent NPE in BlockCacheViewTmpl.

Signed-off-by: stack <stack@apache.org>
2016-02-23 11:34:09 +01:00 · 2016-02-23 11:34:09 +01:00 · e28b01be50
parent 210ed97688
commit e28b01be50
1 changed files with 1 additions and 1 deletions
--- a/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/regionserver/BlockCacheViewTmpl.jamon
+++ b/hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/regionserver/BlockCacheViewTmpl.jamon
@ -44,7 +44,7 @@ org.apache.hadoop.util.StringUtils;
  if (bcn.equals("L1")) {
    bc = bcs == null || bcs.length == 0? bc: bcs[0];
  } else {
-    if (bcs.length < 2) {
+    if (bcs == null || bcs.length < 2) {
      System.out.println("There is no L2 block cache");
      return;
    }