Fix a potential NPE in DataStreamAlias#toString() (#78399) (#78461)

martijnvg · elasticmachine · web-flow · commit ac760635f600 · 2021-10-07T10:28:11.000-04:00
Co-authored-by: Elastic Machine &lt;elasticmachine@users.noreply.github.com&gt;
diff --git a/server/src/main/java/org/elasticsearch/cluster/metadata/DataStreamAlias.java b/server/src/main/java/org/elasticsearch/cluster/metadata/DataStreamAlias.java
@@ -332,7 +332,7 @@ public String toString() {
             "name='" + name + '\'' +
             ", dataStreams=" + dataStreams +
             ", writeDataStream='" + writeDataStream + '\'' +
-            ", filter=" + filter.string() +
+            ", filter=" + (filter != null ? filter.string() : "null") +
             '}';
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -332,7 +332,7 @@ public String toString() {`
`332`	`332`	`"name='" + name + '\'' +`
`333`	`333`	`", dataStreams=" + dataStreams +`
`334`	`334`	`", writeDataStream='" + writeDataStream + '\'' +`
`335`		`- ", filter=" + filter.string() +`
	`335`	`+ ", filter=" + (filter != null ? filter.string() : "null") +`
`336`	`336`	`'}';`
`337`	`337`	`}`
`338`	`338`	`}`