Hi Mark, thanks a lot. Importing org.eclipse.persistence.jaxb and creating the JAXBContext with your example worked great for me.
I updated the Github example so that others can also benefit from your advice. I also moved in this example the data model to a separate plug-in as I think this is the normal case. Thanks for the help. Also thanks again to Dmytro, Neil and Raymond. Best regards, Lars P.S. I also had to add a jaxb.index file to the model packages listing all Java classes but that seems a Jaxb/ Moxy requirement not OSGi related. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virenfrei. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Sun, Aug 2, 2020 at 5:06 PM Mark Hoffmann <mark.hoffm...@web.de> wrote: > > Hi, > > the point is, that with Java11 API and implementation/s are separated. But > the API JAXBContext loads the implementation. > > In OSGi this would mean, that the JAXB-API has to know the implementation. > This is not the case. As default, JAXB tries to load from jaxb.properties in > the package of your entities, or a system property, or in OSGi using HK2 > which tracks the Java ServiceLoader information or the default > implementation: com.sun.xml.bind.v2.ContextFactory using the context class > loader. This will all fail, unless you provide a class-loader that knows the > implementation, best using import package. > > Thats why the most approaches using exactly that, by importing the either > com.sun.xml.bind.v2 or for Moxy org.eclipse.persistence.jaxb. Then you can > create you JAXBContext like this: > > JAXBContext.newInstance(Bookstore.class.getPackageName(), > Bookstore.class.getClassLoader()) > > If you dont like that approach, you are best putting your jaxb implementation > and api on the classpath the framework is started with. > > Using bndtools this is very easy using the runpath instruction: > > -runpath: \ > jakarta.activation-api;version='[1.2.2,1.2.3)',\ > jakarta.xml.bind-api;version='[2.3.3,2.3.4)',\ > org.eclipse.persistence.core;version='[2.7.6,2.7.7)',\ > org.eclipse.persistence.moxy;version='[2.7.6,2.7.7)' > > ... > > -runfw: > org.eclipse.osgi;version='[3.13.100.v20180827-1536,3.13.100.v20180827-1536]' > -runee: JavaSE-11 > -runvm: > -Djavax.xml.bind.JAXBContextFactory=org.eclipse.persistence.jaxb.JAXBContextFactory > > You are then fine with import-package declarations without implementation > details for the entities bundles as well as for the bundle that creates the > JAXBContext: > > Import-Package > javax.xml.bind {version=[2.3,3)} > javax.xml.bind.annotation {version=[2.3,3)} > javax.xml.bind.annotation.adapters {version=[2.3,3)} > > > In that case you can create you JAXBContext like this: > > JAXBContext jc = JAXBContext.newInstance(Bookstore.class); > > But I dont know how to put additional jars to the framework class path when > using the Equinox Launcher, like the RCP does. > > There is a section for implicit dependencies in the target platform editor, > that seems not to save anything. Playing around with the > osgi.frameworkClassPath laucher property didn't succeed. Maybe you have > additionally define the packages via org.osgi.framework.system.packages.extra. > > Regards, > > Mark > > > At some point you will reach > > Am 01.08.20 um 14:53 schrieb Lars Vogel: > > Thanks, Mark > > Mark Hoffmann <mark.hoffm...@web.de> schrieb am Fr., 31. Juli 2020, 20:49: >> >> Hi Lars, >> >> I will take a look into it over the weekend. >> >> Regards, >> Mark >> >> -------- Ursprüngliche Nachricht -------- >> Von: Lars Vogel <lars.vo...@vogella.com> >> Datum: 31.07.20 13:49 (GMT+01:00) >> An: Equinox development mailing list <equinox-dev@eclipse.org> >> Betreff: Re: [equinox-dev] JAXB with Java 11 in OSGi >> >> Hi Neil, Dmytro and Mark, >> >> I tried this but I'm still getting the ClassNotFound Exception. >> >> I uploaded a tiny example here: >> https://github.com/vogellacompany/eclipsercp-jaxb-java11 >> >> In case you want to test, clone the repo, import the example into >> Eclipse and activate the jaxbtarget.target definition and start the >> application via the com.vogella.jaxb.product. >> >> Press the button called "Trigger JAXB" >> >> Results in ClassNotFoundException >> >> Caused by: java.lang.ClassNotFoundException: >> org.eclipse.persistence.jaxb.JAXBContextFactory at >> java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602) >> at >> java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) >> at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at >> org.eclipse.osgi.internal.framework.ContextFinder.loadClass(ContextFinder.java:147) >> at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at >> javax.xml.bind.ContextFinder.safeLoadClass(ContextFinder.java:480) at >> javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:184) … 29 >> more >> >> Best regards, Lars >> >> On Tue, Jul 28, 2020 at 3:07 PM Neil Bartlett <njbartl...@gmail.com> wrote: >> > >> > Hi Lars, >> > >> > Dmytro is correct, the jaxb-api and javax.activation bundles are required >> > to provide the JAXB API on Java 11. You will also need an implementation >> > of the API... the org.eclipse.persistence.core and >> > org.eclipse.persistence.moxy bundles from EclipseLink provide this. >> > >> > I have had JAXB working with RCP for some time on J11 but unfortunately >> > cannot share the code because it is commercial. >> > >> > Neil >> > >> > On Tue, 28 Jul 2020 at 14:03, Dmytro Pishchukhin >> > <dmytro.pishchuk...@gmail.com> wrote: >> >> >> >> Hi Lars, >> >> >> >> Try to use 2 bundles to resolve JAXB packages: >> >> - jaxb-api (javax.xml.bind:jaxb-api:2.3.1) >> >> - javax.activation (com.sun.activation:javax.activation:1.2.0) >> >> >> >> On Tue, Jul 28, 2020 at 1:56 PM Lars Vogel <lars.vo...@vogella.com> wrote: >> >>> >> >>> Friends of OSGi, >> >>> >> >>> Is anyone aware of an example / description of how to use JAXB with >> >>> Java 11 in OSGI (Eclipse RCP)? If yes, please share it with me. >> >>> >> >>> The examples I found for Java 11 are not inside OSGi and fail for me. >> >>> >> >>> Best regards, Lars >> >>> >> >>> >> >>> >> >>> -- >> >>> Eclipse Platform project co-lead >> >>> CEO vogella GmbH >> >>> >> >>> Haindaalwisch 17a, 22395 Hamburg >> >>> Amtsgericht Hamburg: HRB 127058 >> >>> Geschäftsführer: Lars Vogel, Jennifer Nerlich de Vogel >> >>> USt-IdNr.: DE284122352 >> >>> Fax (040) 5247 6322, Email: lars.vo...@vogella.com, Web: >> >>> http://www.vogella.com >> >>> _______________________________________________ >> >>> equinox-dev mailing list >> >>> equinox-dev@eclipse.org >> >>> To unsubscribe from this list, visit >> >>> https://www.eclipse.org/mailman/listinfo/equinox-dev >> >> >> >> >> >> >> >> -- >> >> Best regards, >> >> Dmytro Pishchukhin >> >> _______________________________________________ >> >> equinox-dev mailing list >> >> equinox-dev@eclipse.org >> >> To unsubscribe from this list, visit >> >> https://www.eclipse.org/mailman/listinfo/equinox-dev >> > >> > _______________________________________________ >> > equinox-dev mailing list >> > equinox-dev@eclipse.org >> > To unsubscribe from this list, visit >> > https://www.eclipse.org/mailman/listinfo/equinox-dev >> >> >> >> -- >> Eclipse Platform project co-lead >> CEO vogella GmbH >> >> Haindaalwisch 17a, 22395 Hamburg >> Amtsgericht Hamburg: HRB 127058 >> Geschäftsführer: Lars Vogel, Jennifer Nerlich de Vogel >> USt-IdNr.: DE284122352 >> Fax (040) 5247 6322, Email: lars.vo...@vogella.com, Web: >> http://www.vogella.com >> >> On Tue, Jul 28, 2020 at 9:11 PM Mark Hoffmann <mark.hoffm...@web.de> wrote: >> > >> > Hi Lars, >> > >> > For EclipseLink you should also place a jaxb.properties file in the >> > package where the entites are located or otherwise/better use the >> > >> > -Djavax.xml.bind.JAXBContextFactory=org.eclipse.persistence.jaxb.JAXBContextFactory >> > >> > System Property >> > >> > Am 28.07.20 um 15:07 schrieb Neil Bartlett: >> > >> > Hi Lars, >> > >> > Dmytro is correct, the jaxb-api and javax.activation bundles are required >> > to provide the JAXB API on Java 11. You will also need an implementation >> > of the API... the org.eclipse.persistence.core and >> > org.eclipse.persistence.moxy bundles from EclipseLink provide this. >> > >> > I have had JAXB working with RCP for some time on J11 but unfortunately >> > cannot share the code because it is commercial. >> > >> > Neil >> > >> > On Tue, 28 Jul 2020 at 14:03, Dmytro Pishchukhin >> > <dmytro.pishchuk...@gmail.com> wrote: >> >> >> >> Hi Lars, >> >> >> >> Try to use 2 bundles to resolve JAXB packages: >> >> - jaxb-api (javax.xml.bind:jaxb-api:2.3.1) >> >> - javax.activation (com.sun.activation:javax.activation:1.2.0) >> >> >> >> On Tue, Jul 28, 2020 at 1:56 PM Lars Vogel <lars.vo...@vogella.com> wrote: >> >>> >> >>> Friends of OSGi, >> >>> >> >>> Is anyone aware of an example / description of how to use JAXB with >> >>> Java 11 in OSGI (Eclipse RCP)? If yes, please share it with me. >> >>> >> >>> The examples I found for Java 11 are not inside OSGi and fail for me. >> >>> >> >>> Best regards, Lars >> >>> >> >>> >> >>> >> >>> -- >> >>> Eclipse Platform project co-lead >> >>> CEO vogella GmbH >> >>> >> >>> Haindaalwisch 17a, 22395 Hamburg >> >>> Amtsgericht Hamburg: HRB 127058 >> >>> Geschäftsführer: Lars Vogel, Jennifer Nerlich de Vogel >> >>> USt-IdNr.: DE284122352 >> >>> Fax (040) 5247 6322, Email: lars.vo...@vogella.com, Web: >> >>> http://www.vogella.com >> >>> _______________________________________________ >> >>> equinox-dev mailing list >> >>> equinox-dev@eclipse.org >> >>> To unsubscribe from this list, visit >> >>> https://www.eclipse.org/mailman/listinfo/equinox-dev >> >> >> >> >> >> >> >> -- >> >> Best regards, >> >> Dmytro Pishchukhin >> >> _______________________________________________ >> >> equinox-dev mailing list >> >> equinox-dev@eclipse.org >> >> To unsubscribe from this list, visit >> >> https://www.eclipse.org/mailman/listinfo/equinox-dev >> > >> > >> > _______________________________________________ >> > equinox-dev mailing list >> > equinox-dev@eclipse.org >> > To unsubscribe from this list, visit >> > https://www.eclipse.org/mailman/listinfo/equinox-dev >> > >> > -- >> > Mark Hoffmann >> > >> > E-Mail: mark.hoffm...@web.de >> > >> > _______________________________________________ >> > equinox-dev mailing list >> > equinox-dev@eclipse.org >> > To unsubscribe from this list, visit >> > https://www.eclipse.org/mailman/listinfo/equinox-dev >> >> >> >> -- >> Eclipse Platform project co-lead >> CEO vogella GmbH >> >> Haindaalwisch 17a, 22395 Hamburg >> Amtsgericht Hamburg: HRB 127058 >> Geschäftsführer: Lars Vogel, Jennifer Nerlich de Vogel >> USt-IdNr.: DE284122352 >> Fax (040) 5247 6322, Email: lars.vo...@vogella.com, Web: >> http://www.vogella.com >> _______________________________________________ >> equinox-dev mailing list >> equinox-dev@eclipse.org >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/equinox-dev > > > _______________________________________________ > equinox-dev mailing list > equinox-dev@eclipse.org > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/equinox-dev > > -- > Mark Hoffmann > > E-Mail: mark.hoffm...@web.de > > _______________________________________________ > equinox-dev mailing list > equinox-dev@eclipse.org > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/equinox-dev -- Eclipse Platform project co-lead CEO vogella GmbH Haindaalwisch 17a, 22395 Hamburg Amtsgericht Hamburg: HRB 127058 Geschäftsführer: Lars Vogel, Jennifer Nerlich de Vogel USt-IdNr.: DE284122352 Fax (040) 5247 6322, Email: lars.vo...@vogella.com, Web: http://www.vogella.com _______________________________________________ equinox-dev mailing list equinox-dev@eclipse.org To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/equinox-dev
