diff --git a/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureEvent.java b/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureEvent.java index 614aeb0ca2..e9bc91986b 100644 --- a/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureEvent.java +++ b/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureEvent.java @@ -130,8 +130,8 @@ public class ProcedureEvent { } @Override - public String toString() { - return getClass().getSimpleName() + " for " + object + ", ready=" + isReady() + - ", " + suspendedProcedures; + public synchronized String toString() { + return getClass().getSimpleName() + " for " + object + ", ready=" + isReady() + ", " + + suspendedProcedures; } }