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https://issues.apache.org/jira/browse/HADOOP-19544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18010485#comment-18010485
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ASF GitHub Bot commented on HADOOP-19544:
-----------------------------------------
steveloughran commented on code in PR #7623:
URL: https://github.com/apache/hadoop/pull/7623#discussion_r2237556153
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/YarnJacksonJaxbJsonProvider.java:
##########
@@ -51,6 +53,9 @@ public YarnJacksonJaxbJsonProvider() {
public ObjectMapper locateMapper(Class<?> type, MediaType mediaType) {
ObjectMapper mapper = super.locateMapper(type, mediaType);
configObjectMapper(mapper);
+ if (type == TimelineAbout.class) {
Review Comment:
ok. not safe for 3.4.2 then
> upgrade to jackson 2.18
> -----------------------
>
> Key: HADOOP-19544
> URL: https://issues.apache.org/jira/browse/HADOOP-19544
> Project: Hadoop Common
> Issue Type: Task
> Reporter: PJ Fanning
> Priority: Major
> Labels: pull-request-available
>
> follow up to HADOOP-19259
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