QPID-8454:[Broker-J] Update documentation
diff --git a/doc/java-broker/src/docbkx/management/channels/Java-Broker-Management-Metrics.xml b/doc/java-broker/src/docbkx/management/channels/Java-Broker-Management-Metrics.xml
index c8aeb9d..a75ec05 100644
--- a/doc/java-broker/src/docbkx/management/channels/Java-Broker-Management-Metrics.xml
+++ b/doc/java-broker/src/docbkx/management/channels/Java-Broker-Management-Metrics.xml
@@ -37,7 +37,8 @@
<para>The Broker JVM statistics are disabled by default. The metrics endpoints can be called with parameter
<literal>includeDisabled</literal> set to <literal>true</literal> to include JVM broker metrics into endpoint
- output.
+ output. If required, the JVM metrics could be enabled by setting context variable
+ <literal>qpid.metrics.includeDisabled</literal> to <literal>true</literal>.
</para>
<note>
<para>For more information about Prometheus, check out the
