SOLVED Oracle JDK 11 vs WLSDM FlightRecorder

[Takika]

We have some domains with WebLogic 14c (14.1.1.0.0) on JDK 11. We tried lots of JDK JFR options to fix this error:

####<Dec 5, 2022, 4:41:08,372 PM Central European Standard Time> <Warning> <RMI> <qassec01> <KOBAK_CORE01> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <66c2c0b1-5ae4-4af0-a91e-9397aab80d16-0000000c> <1670254868372> <[severity-value: 16] [rid: 0:8:14:2063] > <BEA-080004> <An error was generated by the RMI server: weblogic.jndi.internal.RootNamingNode.lookup(Ljava.lang.String;Ljava.util.Hashtable;)
 java.lang.NoClassDefFoundError: Lcom/oracle/jrockit/jfr/client/FlightRecorderClient;.
java.lang.NoClassDefFoundError: Lcom/oracle/jrockit/jfr/client/FlightRecorderClient;
        at weblogic.utils.StackTraceDisabled.unknownMethod()
>

Our WLSDM command line parameters:

-javaagent:/share/oracle/wlsdm-beta/wlsdm_agent.jar -Dwlsdm.agent.logLevel=INFO -Dwlsdm.agent.extendedBackendMonitoringEnabled=true -XX:+DisableExplicitGC -XX:FlightRecorderOptions=repository=/ou01/app/WLSDM/qsec14/JFR -XX:+FlightRecorder

I can’t disable FlightRecorder (I tried with -XX:-FlightRecorder). If I want to remove this error I have to remove WLSDM agent from Managed Server.

Is there any fix for this?

Thanks:
Sándor Takács
National Tax and Customs Administration, Hungary

[fevzi.korkutata-wlsdmteam]

@takika Hi,

Have you found any workaround? Our latest version which is v4.1.1 is supporting JDK 11 officially anymore. You can give a try here… https://wlsdm.com/download

[deniz.bedel-wlsdmteam]

Hello @Takika,
We are working on reproducing the issue. We will contact you as soon as possible.

Best Regards

[fevzi.korkutata-wlsdmteam]

@takika Hi,

Have you found any workaround? Our latest version which is v4.1.1 is supporting JDK 11 officially anymore. You can give a try here… https://wlsdm.com/download

[Takika]

@fevzi-korkutata-wlsdmteam
I just checked the README, but didn’t find anything about Java 11 and FlightRecorder. There is no JAVA_OPTIONS for Java 11.

[fevzi.korkutata-wlsdmteam]

@takika said in Oracle JDK 11 vs WLSDM FlightRecorder:

@fevzi-korkutata-wlsdmteam
I just checked the README, but didn’t find anything about Java 11 and FlightRecorder. There is no JAVA_OPTIONS for Java 11.

Hi Takika,
You can find the JDK 11 update in Readme as stated in below screen capture. Cloud you please give a try again and let me know the latest status about your case. You should not get any error anymore with the v4.1.1 also please tell me your exact WLSDM for WebLogic version.

Latest Readme: https://wlsdm.com/docs/README