Awesome news Rémy, thanks for sharing! Romain Manni-Bucau @rmannibucau <https://twitter.com/rmannibucau> | Blog <https://rmannibucau.metawerx.net/> | Old Blog <http://rmannibucau.wordpress.com> | Github <https://github.com/rmannibucau> | LinkedIn <https://www.linkedin.com/in/rmannibucau> | Book <https://www.packtpub.com/application-development/java-ee-8-high-performance>
Le mer. 24 avr. 2019 à 18:06, Rémy Maucherat <r...@apache.org> a écrit : > On Thu, Mar 28, 2019 at 3:38 PM Rémy Maucherat <r...@apache.org> wrote: > > > On Wed, Mar 20, 2019 at 4:45 PM Romain Manni-Bucau < > rmannibu...@gmail.com> > > wrote: > > > >> Most of the time monitoring is done through a custom exporter in > practise > >> based on other impl - sigar, library integration like > >> hibernate/eclipselinks ones, metrics, microprofile etc... - and JMX is > >> not > >> then used - not judging it is good, bad, lack of knowledge or not, just > >> saying what i see. > >> Now I'm happy if JMX is made graal compatible. From what I saw, mainly > the > >> MBeanServer and Notifier (through the hierarchy it goes until that point > >> in > >> the JVM in standard mbeans) are blocking the compilation. I'm pretty > sure > >> these parts of Tomcat can be extracted in a particular class and then > >> substrated which would make it graal compatible probably. > >> > > > > Ok, so I had a (quick) look, and this doesn't seem to be something that > is > > adapted to Tomcat at this time. > > > > Steps: > > - I built the embedded packaging here > > https://github.com/apache/tomcat/tree/master/res/tomcat-maven > > - It produces a standalone jar in target/tomcat-maven-1.0.jar > > - Une the graal tool $GRAALVM/bin/native-image -jar > > target/tomcat-maven-1.0.jar > > > > Produces: > > Error: No instances are allowed in the image heap for a class that is > > initialized or reinitialized at image runtime: > > java.util.logging.SimpleFormatter > > Detailed message: > > Error: No instances are allowed in the image heap for a class that is > > initialized or reinitialized at image runtime: > > java.util.logging.SimpleFormatter > > Trace: object java.util.logging.ConsoleHandler > > object java.lang.Object[] > > object java.util.concurrent.CopyOnWriteArrayList > > object java.util.logging.LogManager$RootLogger > > object java.util.logging.Logger > > object org.apache.juli.logging.DirectJDKLog > > method > > org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleState, > > Object, boolean) > > Call path from entry point to > > org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleState, > > Object, boolean): > > at > > > org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:390) > > at > org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:193) > > at org.apache.catalina.startup.Tomcat.start(Tomcat.java:455) > > at org.apache.catalina.startup.Tomcat.main(Tomcat.java:1444) > > at com.oracle.svm.core.JavaMainWrapper.run(JavaMainWrapper.java:152) > > at > > > com.oracle.svm.core.code.IsolateEnterStub.JavaMainWrapper_run_5087f5482cc9a6abc971913ece43acb471d2631b(generated:0) > > > > If you want to work on this, you can (git makes it easy) but it looks a > > bit daunting at this point (java.util.logging is not supported either ? > > this is not documented at > > https://github.com/oracle/graal/blob/master/substratevm/LIMITATIONS.md > ). > > > > https://www.graalvm.org/docs/release-notes/#10-rc16 finally adds > java.util.logging support, so I can resume investigations. > > ../graalvm-ce-1.0.0-rc16/bin/native-image -jar tomcat-maven-1.0.jar > Build on Server(pid: 1452, port: 38003)* > [tomcat-maven-1.0:1452] classlist: 2,157.50 ms > [tomcat-maven-1.0:1452] (cap): 801.03 ms > [tomcat-maven-1.0:1452] setup: 1,746.56 ms > [tomcat-maven-1.0:1452] (typeflow): 4,968.17 ms > [tomcat-maven-1.0:1452] (objects): 3,425.07 ms > [tomcat-maven-1.0:1452] (features): 176.88 ms > [tomcat-maven-1.0:1452] analysis: 8,816.22 ms > [tomcat-maven-1.0:1452] universe: 289.24 ms > Warning: Reflection method java.lang.Class.forName invoked at > org.apache.catalina.startup.Tomcat.addWebapp(Tomcat.java:686) > Warning: Reflection method java.lang.Class.forName invoked at > > org.apache.catalina.core.NamingContextListener.constructEnvEntry(NamingContextListener.java:797) > Warning: Reflection method java.lang.Class.forName invoked at > > org.apache.tomcat.util.modeler.ManagedBean.createMBean(ManagedBean.java:303) > Warning: Reflection method java.lang.Class.forName invoked at > org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:821) > Warning: Reflection method java.lang.Class.forName invoked at > > org.apache.catalina.realm.RealmBase.createUsernameRetriever(RealmBase.java:1506) > Warning: Reflection method java.lang.Class.forName invoked at > org.apache.catalina.startup.Tomcat.createContext(Tomcat.java:964) > Warning: Reflection method java.lang.Class.forName invoked at > org.apache.tomcat.util.modeler.Registry.getModelerSource(Registry.java:723) > Warning: Reflection method java.lang.Class.getMethod invoked at > org.apache.tomcat.util.modeler.ManagedBean.getGetter(ManagedBean.java:450) > Warning: Reflection method java.lang.Class.getMethod invoked at > org.apache.tomcat.util.modeler.ManagedBean.getGetter(ManagedBean.java:443) > Warning: Reflection method java.lang.Class.getMethod invoked at > > org.apache.catalina.deploy.NamingResourcesImpl.cleanUp(NamingResourcesImpl.java:1061) > Warning: Reflection method java.lang.Class.getConstructor invoked at > > org.apache.catalina.realm.RealmBase.createUsernameRetriever(RealmBase.java:1507) > Warning: Reflection method java.lang.Class.getConstructor invoked at > > org.apache.tomcat.util.modeler.ManagedBean.createMBean(ManagedBean.java:323) > Warning: Reflection method java.lang.Class.getConstructor invoked at > > org.apache.catalina.core.NamingContextListener.constructEnvEntry(NamingContextListener.java:800) > Warning: Reflection method java.lang.Class.getConstructor invoked at > > org.apache.catalina.core.NamingContextListener.constructEnvEntry(NamingContextListener.java:811) > Warning: Reflection method java.lang.Class.getConstructor invoked at > org.apache.catalina.startup.Tomcat.createContext(Tomcat.java:964) > Warning: Reflection method java.lang.Class.getConstructor invoked at > org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:821) > Warning: Reflection method java.lang.Class.getConstructor invoked at > org.apache.catalina.startup.Tomcat.addWebapp(Tomcat.java:687) > Warning: Reflection method java.lang.Class.getConstructor invoked at > org.apache.tomcat.util.modeler.Registry.getModelerSource(Registry.java:724) > Warning: Reflection method java.lang.ClassLoader.loadClass invoked at > > org.apache.tomcat.util.modeler.ManagedBean.createMBean(ManagedBean.java:311) > Warning: Abort stand-alone image build due to reflection use without > configuration. > Warning: Use -H:+ReportExceptionStackTraces to print stacktrace of > underlying exception > Build on Server(pid: 1452, port: 38003) > [tomcat-maven-1.0:1452] classlist: 130.82 ms > [tomcat-maven-1.0:1452] (cap): 514.25 ms > [tomcat-maven-1.0:1452] setup: 789.01 ms > [tomcat-maven-1.0:1452] (typeflow): 1,503.13 ms > [tomcat-maven-1.0:1452] (objects): 550.15 ms > [tomcat-maven-1.0:1452] (features): 116.25 ms > [tomcat-maven-1.0:1452] analysis: 2,211.18 ms > [tomcat-maven-1.0:1452] universe: 86.11 ms > [tomcat-maven-1.0:1452] (parse): 319.54 ms > [tomcat-maven-1.0:1452] (inline): 886.40 ms > [tomcat-maven-1.0:1452] (compile): 2,731.85 ms > [tomcat-maven-1.0:1452] compile: 4,189.10 ms > [tomcat-maven-1.0:1452] image: 238.35 ms > [tomcat-maven-1.0:1452] write: 66.38 ms > [tomcat-maven-1.0:1452] [total]: 7,756.62 ms > Warning: Image 'tomcat-maven-1.0' is a fallback image that requires a JDK > for execution (use --no-fallback to suppress fallback image generation). > > This generates a 'tomcat-maven-1.0' executable, which runs and works but > most likely does nothing really useful at this point. However, it's > something and it's no longer unusable. > > Rémy >
