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jdk_jfr_support_investigation.adoc

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Investigation into which JDKs really support JFR

A small test to check for JFR support in the different JDKs. This is not an exhaustive list, but the check can be easily adapted to test additional versions.

Background: JFR was introduced in Oracle JDK 9, and was open sourced with OpenJDK 11, and later on backported to OpenJDK 8_262. It was not backported to the not-lts releases 9 and 10.

TL;DR

JFR is supported in

  • adoptopenjdk-8.0.262+10

  • adoptopenjdk-8.0.292+10

  • adoptopenjdk-11.0.9+11

  • adoptopenjdk-openj9-11.0.1+13.openj9-0.11.0

  • corretto-8.262.10.1

  • corretto-8.302.08.1

  • corretto-11.0.12.7.2

  • liberica-8u302+8

  • liberica-11.0.12+7

  • openjdk-11.0.2

  • zulu-8.48.0.51

  • zulu-8.56.0.21

  • zulu-11.2.3

  • zulu-11.50.19

Doesn’t work with

  • adoptopenjdk-openj9-8.0.292+10.openj9-0.26.0

  • adoptopenjdk-9.0.0+181

  • adoptopenjdk-10.0.2+13.1

  • liberica-8u262+10

  • openjdk-9.0.4

  • openjdk-10.0.2

Preparation

Install JDKs

for jdk in "adoptopenjdk-8.0.262+10" "adoptopenjdk-8.0.292+10" "adoptopenjdk-9.0.0+181" "adoptopenjdk-10.0.2+13.1" "adoptopenjdk-11.0.9+11" "adoptopenjdk-openj9-8.0.292+10.openj9-0.26.0" "adoptopenjdk-openj9-11.0.1+13.openj9-0.11.0" "corretto-8.262.10.1" "corretto-8.302.08.1" "corretto-11.0.12.7.2" "liberica-8u262+10" "liberica-8u302+8" "liberica-11.0.12+7" "openjdk-9.0.4" "openjdk-10.0.2" "openjdk-11.0.2" "zulu-8.48.0.51" "zulu-8.56.0.21" "zulu-11.2.3" "zulu-11.50.19"
do
    asdf install java $jdk
done

Create HelloWorld.java and compile with adoptopenjdk-8.0.292+10.

import jdk.jfr.*;

@Category("HelloWorld")
@Name("HelloWorldEvent")
@StackTrace(true)
@Description("Say Hello")
@Label("Hello World")
public class HelloWorld extends Event {
  @Label("Greeting")
  String greeting;

  public static void main(String... args) {
    HelloWorld event = new HelloWorld();
    event.begin();
    String greeting = args.length > 0 ? args[0] : "World";
    System.out.println("Hello " + greeting);
    event.greeting = greeting;
    event.commit();
  }
}

Execute with different JDKs using this snippet

for jdk in "adoptopenjdk-8.0.262+10" "adoptopenjdk-8.0.292+10" "adoptopenjdk-9.0.0+181" "adoptopenjdk-10.0.2+13.1" "adoptopenjdk-11.0.9+11" "adoptopenjdk-openj9-8.0.292+10.openj9-0.26.0" "adoptopenjdk-openj9-11.0.1+13.openj9-0.11.0" "corretto-8.262.10.1" "corretto-8.302.08.1" "corretto-11.0.12.7.2" "liberica-8u262+10" "liberica-8u302+8" "liberica-11.0.12+7" "openjdk-9.0.4" "openjdk-10.0.2" "openjdk-11.0.2" "zulu-8.48.0.51" "zulu-8.56.0.21" "zulu-11.2.3" "zulu-11.50.19"
do
    echo "Using ${jdk}"
    asdf shell java $jdk
    java -version
    java HelloWorld
    echo "-------------------"
done

Results:

Using adoptopenjdk-8.0.262+10
openjdk version "1.8.0_262"
OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_262-b10)
OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.262-b10, mixed mode)
Hello World
-------------------
Using adoptopenjdk-8.0.292+10
openjdk version "1.8.0_292"
OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_292-b10)
OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.292-b10, mixed mode)
Hello World
-------------------
Using adoptopenjdk-9.0.0+181
openjdk version "9"
OpenJDK Runtime Environment (build 9+181)
OpenJDK 64-Bit Server VM (build 9+181, mixed mode)
Error: Could not find or load main class HelloWorld
Caused by: java.lang.NoClassDefFoundError: jdk/jfr/Event
-------------------
Using adoptopenjdk-10.0.2+13.1
openjdk version "10.0.2" 2018-07-17
OpenJDK Runtime Environment AdoptOpenJDK (build 10.0.2+13)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 10.0.2+13, mixed mode)
Error: Could not find or load main class HelloWorld
Caused by: java.lang.NoClassDefFoundError: jdk/jfr/Event
-------------------
Using adoptopenjdk-11.0.9+11
openjdk version "11.0.9" 2020-10-20
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.9+11)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.9+11, mixed mode)
Hello World
-------------------
Using adoptopenjdk-openj9-8.0.292+10.openj9-0.26.0
openjdk version "1.8.0_292"
OpenJDK Runtime Environment (build 1.8.0_292-b10)
Eclipse OpenJ9 VM (build openj9-0.26.0, JRE 1.8.0 Mac OS X amd64-64-Bit Compressed References 20210421_909 (JIT enabled, AOT enabled)
OpenJ9   - b4cc246d9
OMR      - 162e6f729
JCL      - 2a5e268814 based on jdk8u292-b10)
Error: Could not find or load main class HelloWorld
-------------------
Using adoptopenjdk-openj9-11.0.1+13.openj9-0.11.0
openjdk version "11.0.1" 2018-10-16
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.1+13)
Eclipse OpenJ9 VM AdoptOpenJDK (build openj9-0.11.0, JRE 11 Mac OS X amd64-64-Bit 20181115_16 (JIT enabled, AOT enabled)
OpenJ9   - 090ff9dcd
OMR      - ea548a66
JCL      - d4455071ce based on jdk-11.0.1+13)
Hello World
-------------------
Using corretto-8.262.10.1
openjdk version "1.8.0_262"
OpenJDK Runtime Environment Corretto-8.262.10.1 (build 1.8.0_262-b10)
OpenJDK 64-Bit Server VM Corretto-8.262.10.1 (build 25.262-b10, mixed mode)
Hello World
-------------------
Using corretto-8.302.08.1
openjdk version "1.8.0_302"
OpenJDK Runtime Environment Corretto-8.302.08.1 (build 1.8.0_302-b08)
OpenJDK 64-Bit Server VM Corretto-8.302.08.1 (build 25.302-b08, mixed mode)
Hello World
-------------------
Using corretto-11.0.12.7.2
openjdk version "11.0.12" 2021-07-20 LTS
OpenJDK Runtime Environment Corretto-11.0.12.7.2 (build 11.0.12+7-LTS)
OpenJDK 64-Bit Server VM Corretto-11.0.12.7.2 (build 11.0.12+7-LTS, mixed mode)
Hello World
-------------------
Using liberica-8u262+10
openjdk version "1.8.0_262"
OpenJDK Runtime Environment (build 1.8.0_262-b10)
OpenJDK 64-Bit Server VM (build 25.262-b10, mixed mode)
Error: Could not find or load main class HelloWorld
-------------------
Using liberica-8u302+8
openjdk version "1.8.0_302"
OpenJDK Runtime Environment (build 1.8.0_302-b08)
OpenJDK 64-Bit Server VM (build 25.302-b08, mixed mode)
Hello World
-------------------
Using liberica-11.0.12+7
openjdk version "11.0.12" 2021-07-20 LTS
OpenJDK Runtime Environment (build 11.0.12+7-LTS)
OpenJDK 64-Bit Server VM (build 11.0.12+7-LTS, mixed mode)
Hello World
-------------------
Using openjdk-9.0.4
openjdk version "9.0.4"
OpenJDK Runtime Environment (build 9.0.4+11)
OpenJDK 64-Bit Server VM (build 9.0.4+11, mixed mode)
Error: Could not find or load main class HelloWorld
Caused by: java.lang.NoClassDefFoundError: jdk/jfr/Event
-------------------
Using openjdk-10.0.2
openjdk version "10.0.2" 2018-07-17
OpenJDK Runtime Environment 18.3 (build 10.0.2+13)
OpenJDK 64-Bit Server VM 18.3 (build 10.0.2+13, mixed mode)
Error: Could not find or load main class HelloWorld
Caused by: java.lang.NoClassDefFoundError: jdk/jfr/Event
-------------------
Using openjdk-11.0.2
openjdk version "11.0.2" 2019-01-15
OpenJDK Runtime Environment 18.9 (build 11.0.2+9)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.2+9, mixed mode)
Hello World
-------------------
Using zulu-8.48.0.51
openjdk version "1.8.0_262"
OpenJDK Runtime Environment (Zulu 8.48.0.51-CA-macosx) (build 1.8.0_262-b19)
OpenJDK 64-Bit Server VM (Zulu 8.48.0.51-CA-macosx) (build 25.262-b19, mixed mode)
Hello World
-------------------
Using zulu-8.56.0.21
openjdk version "1.8.0_302"
OpenJDK Runtime Environment (Zulu 8.56.0.21-CA-macosx) (build 1.8.0_302-b08)
OpenJDK 64-Bit Server VM (Zulu 8.56.0.21-CA-macosx) (build 25.302-b08, mixed mode)
Hello World
-------------------
Using zulu-11.2.3
openjdk version "11.0.1" 2018-10-16 LTS
OpenJDK Runtime Environment Zulu11.2+3 (build 11.0.1+13-LTS)
OpenJDK 64-Bit Server VM Zulu11.2+3 (build 11.0.1+13-LTS, mixed mode)
Hello World
-------------------
Using zulu-11.50.19
openjdk version "11.0.12" 2021-07-20 LTS
OpenJDK Runtime Environment Zulu11.50+19-CA (build 11.0.12+7-LTS)
OpenJDK 64-Bit Server VM Zulu11.50+19-CA (build 11.0.12+7-LTS, mixed mode)
Hello World
-------------------