Hi Doug, Karaf 4.2.3 fixed several jdk11 related issues and we strongly recommend you to switch to Karaf 4.2.3 if you want to use JDK11.
Cheers －－－－－－－－－－－－－ Freeman(Yue) Fang Red Hat, Inc. > On Mar 6, 2019, at 7:46 AM, Jackson, Douglas <[email protected]> > wrote: > > Hi! > The OOTB karaf 4.2.2 does not start up when used with OpenJDK 11 – it seems > to lock up on startup. I replaced the karaf.bat file with the karaf 4.2.3 > karaf.bat file. > After that the karaf 4.2.2 at least starts up, but I get exceptions. > 4.2.3 seems to fix these, but switching to that release would set my product > release back several months. > Can anyone tell me if there is a small fix that might enable me to get around > these issues on 4.2.2? > Thanks in advance, > Doug > > java.lang.NoClassDefFoundError: org/apache/karaf/specs/locator/OsgiLocator > at > org.apache.karaf.specs.activator.Activator.register(Activator.java:124) ~[?:?] > at > org.apache.karaf.specs.activator.Activator.bundleChanged(Activator.java:96) > ~[?:?] > > If I add in “war” in the boot features, then I see the following: > > karaf@root()> org.apache.karaf.features.internal.util.MultiException: Error > restarting bundles: > Activator start error in bundle org.ops4j.pax.web.pax-web-jetty [136]. > at > org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:1005) > <snip> > at java.base/java.lang.Thread.run(Thread.java:825) > Suppressed: org.osgi.framework.BundleException: Activator start error > in bundle org.ops4j.pax.web.pax-web-jetty [136]. > <snip> > Caused by: java.lang.ClassFormatError: Weaving hook failed. > at > org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.transformClass(BundleWiringImpl.java:24 > <snip> > Caused by: java.lang.IllegalStateException: Unknown protocol: jrt > > openjdk version "11.0.2" 2019-01-15 > OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.2+9) > Eclipse OpenJ9 VM AdoptOpenJDK (build openj9-0.12.1, JRE 11 Windows 10 > amd64-64-Bit Compressed References 20190204_123 (JIT enabled, AOT enabled) > OpenJ9 - 90dd8cb40 > OMR - d2f4534b > JCL - 289c70b684 based on jdk-11.0.2+9)
