Need to do CPU profiling for Jruby application (jruby version : 1.7.20.1-8) which uses ruby version (1.9.3).
I tried using default profiler but getting below error due to version compatibility issue of tomcat and jdk.

app@sc-doc-prod-deployment-5cbd9f468-2bf2b:/usr/src/app$ uname -a
Linux sc-doc-prod-deployment-5cbd9f468-2bf2b 5.10.0-35-amd64 #1 SMP Debian 5.10.237-1 (2025-05-19) x86_64 GNU/Linux

app@sc-doc-preprod-deployment-7f4ddf6588-sxw9r:/usr/src/app$ jruby --profile -S ./bin/trinidad --ssl 37001 --config /etc/fk-sc-doc-b2b/trinidad.yml -p 37000
Profiling enabled; ^C shutdown will now dump profile info
Initializing ProtocolHandler ["http-bio-37000"]
Initializing ProtocolHandler ["http-bio-37001"]
Starting Servlet Engine: Apache Tomcat/7.0.28
Unable to process Jar entry [sun/security/ec/ECDHKeyAgreement.class] from Jar [jar:file:/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/ext/sunec.jar!/] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 18
at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:131)
at org.apache.tomcat.util.bcel.classfile.ConstantPool.(ConstantPool.java:60)
at org.apache.tomcat.util.bcel.classfile.ClassParser.readConstantPool(ClassParser.java:209)
at org.apache.tomcat.util.bcel.classfile.ClassParser.parse(ClassParser.java:119)
at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2049)
at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1931)
at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1899)
at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1885)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1281)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:855)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:346)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5172)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1595)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1585)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Unable to process Jar entry [sun/security/ec/ECDSAOperations.class] from Jar [jar:file:/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/ext/sunec.jar!/] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 18
at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:131)
at org.apache.tomcat.util.bcel.classfile.ConstantPool.(ConstantPool.java:60)
at org.apache.tomcat.util.bcel.classfile.ClassParser.readConstantPool(ClassParser.java:209)

Please help me if I am doing anything wrong in profiler run command. as per error there is version in-compatibility with tomcat and jdk. how to fix this?

I tried using ruby-prof version (0.15.0), but getting below error.
Please suggest what to do. if ruby-prof can't work then please suggest any working alternative if you know

#35 43.77 Installing ruby-prof 0.15.0 with native extensions
#35 45.27
#35 45.27 Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
#35 45.27
#35 45.27 /usr/lib/jruby/bin/jruby -r ./siteconf20250903-10-1x1rtxq.rb extconf.rb
#35 45.27 /usr/lib/jruby/lib/ruby/shared/mkmf.rb:14: Use RbConfig instead of obsolete and deprecated Config.
#35 45.27 mkmf.rb can't find header files for ruby at /usr/lib/jruby/lib/native/include/ruby/ruby.h
#35 45.27
#35 45.27 extconf failed, uncaught signal 1
#35 45.27
#35 45.27 Gem files will remain installed in /usr/lib/jruby/lib/ruby/gems/shared/gems/ruby-prof-0.15.0 for inspection.
#35 45.27 Results logged to /usr/lib/jruby/lib/ruby/gems/shared/extensions/universal-java-1.8/1.9/ruby-prof-0.15.0/gem_make.out
#35 45.27 An error occurred while installing ruby-prof (0.15.0), and Bundler cannot
#35 45.27 continue.
#35 45.27 Make sure that gem install ruby-prof -v '0.15.0' succeeds before bundling.
#35 ERROR: process "/bin/sh -c bundle install" did not complete successfully: exit code: 5

I tried using async profier but it doesn't show ruby code info in CPU profiling. in this post https://www.ruby-forum.com/t/ruby-prof-for-jruby/149086 it was written that by enabling jruby.compile.mode=FORCE flag JVM profiler, it will work. but is not working. generated sample HTML file () and sample JFR file link - in this post https://www.ruby-forum.com/t/ruby-prof-for-jruby/149086

async_profiler_jruby_profiling.html

how to do the CPU profiling? Not able to figure out way to do this. please help