[
https://issues.apache.org/jira/browse/HBASE-26171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Zixuan Liu updated HBASE-26171:
-------------------------------
Description:
MetricsRegionServer may throws NullPointerException When optional.get() is
called.
{code:java}
metricRegistry =
MetricRegistries.global().get(serverSource.getMetricRegistryInfo()).get();
{code}
was:
XmlMessageRenderer.getXstream() method:
```
public XStream getXstream() {
if (xstream == null) {
xstream = new XStream();
}
return xstream;
}
```
There is a risk of XStream deserialization.
Summary: MetricsRegionServer may throws NullPointerException (was:
XmlMessageRenderer has the risk of XStream deserialization)
> MetricsRegionServer may throws NullPointerException
> ---------------------------------------------------
>
> Key: HBASE-26171
> URL: https://issues.apache.org/jira/browse/HBASE-26171
> Project: HBase
> Issue Type: Improvement
> Reporter: Zixuan Liu
> Priority: Major
>
> MetricsRegionServer may throws NullPointerException When optional.get() is
> called.
>
>
> {code:java}
> metricRegistry =
> MetricRegistries.global().get(serverSource.getMetricRegistryInfo()).get();
>
> {code}
>
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