config.yaml Rules are not fetching all attributes metrics when using selective Object for Mbean

[KMTahir]

Hi,
I am trying to get the tomcat JVM metrics using Java Agent jmx_prometheus_javaagent ( have tried 0.20.0 and 1.0.1 both version )

My issue is that if I use * in Rule file like below

rules:
- pattern: ".*"

It work properly and fetch all attribute etc. But I want to get specfic Mbeans only ( Memory , Threading,Garbagecollection and ClassLoading ). I am using the below configuration for it

rules:
- pattern: "java.lang:type=Memory"
- pattern: "java.lang:type=Threading"
- pattern: "java.lang:type=GarbageCollector,name=(.*)"
- pattern: "java.lang:type=ClassLoading"

while using above config. it is not fetching many attribute which are part of these Mbeans. Like java_lang_ClassLoading_LoadedClassCount is atttribute of ojbect ClassLoading but it is not receiving.

Similarly their are some other attributes which are missing if I don't use ".*" in config.yaml file

am I missing something or its a bug of jmx_prometheus_javaagent ?

Just for info, I am verifying the list of metrics like below

curl localhost:9093/metrics

[dhoard]

@KMTahir try these rules...

rules:
  - pattern: "java.lang<type=Memory(.*)><(.*)>"
  - pattern: "java.lang<type=Threading(.*)><(.*)>"
  - pattern: "java.lang<type=GarbageCollector(.*)><(.*)>"
  - pattern: "java.lang<type=ClassLoading(.*)><(.*)>"

[KMTahir]

Dear @dhoard
Thank you for your prompt and accurate reply. I am now receiving all attributes using your suggested configuration. I really appreciate your support.
Best regards,