[KAFKA-14559] Handle object name with wildcards in the Jmx tool

• Type: Task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.6.0
• Assignee: Kamal Chandraprakash
• Reporter: Kamal Chandraprakash
• Created: 30/Dec/22 10:56
• Updated: 20/May/23 08:31
• Resolved: 20/May/23 08:30

Description

❯ sh kafka-run-class.sh kafka.tools.JmxTool --jmx-url service:jmx:rmi:///jndi/rmi://127.0.0.1:9999/jmxrmi --object-name kafka.server:type=BrokerTopicMetrics,*

Trying to connect to JMX url: service:jmx:rmi:///jndi/rmi://127.0.0.1:9999/jmxrmi.
Exception in thread "main" java.lang.NullPointerException
	at kafka.tools.JmxTool$.main(JmxTool.scala:194)
	at kafka.tools.JmxTool.main(JmxTool.scala)

❯ sh kafka-run-class.sh kafka.tools.JmxTool --jmx-url service:jmx:rmi:///jndi/rmi://localhost:9999/jmxrmi --object-name kafka.server:type=BrokerTopicMetrics,* --attributes Count,FifteenMinuteRate

Trying to connect to JMX url: service:jmx:rmi:///jndi/rmi://127.0.0.1:9999/jmxrmi. 
Exception in thread "main" java.lang.NullPointerException
	at kafka.tools.JmxTool$.queryAttributes(JmxTool.scala:254)
	at kafka.tools.JmxTool$.main(JmxTool.scala:214)
	at kafka.tools.JmxTool.main(JmxTool.scala)

Issue Links

• links to: GitHub Pull Request #13060