zentol commented on a change in pull request #11073: [FLINK-15672][build] 
Migrate to log4j2 
URL: https://github.com/apache/flink/pull/11073#discussion_r381911340
 
 

 ##########
 File path: 
flink-yarn-tests/src/test/java/org/apache/flink/yarn/YarnTestBase.java
 ##########
 @@ -817,7 +817,12 @@ protected void runWithArgs(String[] args, String 
terminateAfterString, String[]
                                }
                        }
                        // check output for the expected terminateAfterString.
-                       testPassedFromLog4j = 
logMessageSupplier.get().stream().anyMatch(s -> 
s.contains(terminateAfterString));
+                       testPassedFromLog4j = logMessageSupplier.get().stream()
+                               .filter(s -> s.contains(terminateAfterString))
+                               .limit(1)
 
 Review comment:
   I see no such behavior documented in the javadocs, it just limits the max 
size. Minimum size should be irrelevant.

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