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Re: [ptp-dev] Fw: PTP java.lang.ClassNotFoundException: for com.sun.xml.internal.bind.v2.ContextFactory

Greg
If I don't change anything, I get this popup when starting the PTP runtime instance with a Java 8 runtime


and I get this exception logged,
org.osgi.framework.BundleException: Could not resolve module: com.sun.xml.bind.jaxb-osgi [9]
Unresolved requirement: Import-Package: javax.xml.bind.annotation; version="2.3.0"
-> Export-Package: javax.xml.bind.annotation; bundle-symbolic-name="jaxb-api"; bundle-version="2.4.0.b1808300359"; version="2.3.0"; uses:="javax.xml.bind,javax.xml.parsers,javax.xml.transform,javax.xml.transform.dom,org.w3c.dom"
jaxb-api [20]
Unresolved requirement: Require-Capability: osgi.ee; filter:="(&(osgi.ee=JavaSE)(version=9.0))"
Unresolved requirement: Import-Package: javax.xml.bind; version="2.3.0"
-> Export-Package: javax.xml.bind; bundle-symbolic-name="jaxb-api"; bundle-version="2.4.0.b1808300359"; version="2.3.0"; uses:="javax.xml.bind.annotation.adapters,javax.xml.bind.attachment,javax.xml.namespace,javax.xml.stream,javax.xml.transform,javax.xml.validation,org.w3c.dom,org.xml.sax"

The runtime instance starts and the run configuration dialog resources tab fills in properly when I select a connection name. I don't have either OpenMPI or MPICH on my test system so I specified the application as /bin/ls and clicked run. That generated output to the console and I didn't see any further errors logged.

If I change the MANIFEST.MF file in org.eclipse.ptp.rm.jaxb.core and use the Java 8 runtime I get the same behavior including the popup and exception.

Dave


Inactive hide details for Greg Watson ---06/04/2019 11:50:32 AM---Unfortunately this is the problem. Projects hosted on EclipseGreg Watson ---06/04/2019 11:50:32 AM---Unfortunately this is the problem. Projects hosted on Eclipse can’t be built using arbitrary compone

From: Greg Watson <g.watson@xxxxxxxxxxxx>
To: Parallel Tools Platform general developers <ptp-dev@xxxxxxxxxxx>
Date: 06/04/2019 11:50 AM
Subject: [EXTERNAL] Re: [ptp-dev] Fw: PTP java.lang.ClassNotFoundException: for com.sun.xml.internal.bind.v2.ContextFactory
Sent by: ptp-dev-bounces@xxxxxxxxxxx




Unfortunately this is the problem. Projects hosted on Eclipse can’t be built using arbitrary components from a maven repository. Everything has to be obtained from Eclipse repositories, and from what I’ve been able to determine, the latest jaxb version is 2.2.0 which doesn’t seem to work. I’ve been looking at using Eclipselink but haven’t been able to get that to work either.

Also, it would be worth checking that Dave’s solution works for Java 8 as well as Java 11/12. Whatever the solution is, it also needs to work with both versions.

Regards,
Greg
      On Jun 4, 2019, at 11:34 AM, Serban Maerean <serban@xxxxxxxxxx> wrote:

      Dave, is it possible that Greg didn't copy the three plugins to a local directory and instead tried to reference them directly from the server?

      Greg, with Dave's approach, will you need to package those plugins with PTP?


      Serban Maerean
      HPC Tools
      T/L: 293-9770, Tel.: 845-433-9770
      E-mail:       serban@xxxxxxxxxx



      From:       "David Wootton" <dwootton@xxxxxxxxxx>
      To:       Parallel Tools Platform general developers <ptp-dev@xxxxxxxxxxx>
      Date:       06/04/2019 11:22 AM
      Subject:       [EXTERNAL] Re: [ptp-dev] Fw: PTP java.lang.ClassNotFoundException: for com.sun.xml.internal.bind.v2.ContextFactory
      Sent by:       ptp-dev-bounces@xxxxxxxxxxx



      Greg
      I'm not sure what's different. I have a Java 12 runtime. I downloaded the java-activation-1.2.0,jar, jaxb-api-2.4.0-b-180830.0359.jar and jaxb-osgi-180830.0438.jar from the maven repository files into a local directory, added that directory as a local repoistory in the photon.target file, and changed the import for com.sun.xml.bin in the org.eclipse.ptp.rm.jaxb.core MANIFEST.MF file to com.sun.xml.bind.v2. Then I reloaded the target definition file and started a PTP runtime instance.
      I was able to open the run configuration dialog, pick any target system configuration and pick a remote connection name. Then the resources page would fill in properly.

      If I backed out those changes and ran again using the Java 12 runtime, I got the error for the missing class.
      Dave
      <Mail Attachment.gif>Greg Watson ---06/04/2019 09:20:45 AM---Hi Dave, Yes, I’ve spent the better part of a week on it and I’m still no closer… I’ve tried everyt

      From:       Greg Watson <g.watson@xxxxxxxxxxxx>
      To:       Parallel Tools Platform general developers <ptp-dev@xxxxxxxxxxx>
      Date:       06/04/2019 09:20 AM
      Subject:       [EXTERNAL] Re: [ptp-dev] Fw: PTP java.lang.ClassNotFoundException: for com.sun.xml.internal.bind.v2.ContextFactory
      Sent by:       ptp-dev-bounces@xxxxxxxxxxx



      Hi Dave,

      Yes, I’ve spent the better part of a week on it and I’m still no closer… I’ve tried everything, including creating a fragment with the dependencies but I’m still getting the error.

      Greg
      On Jun 4, 2019, at 9:03 AM, David Wootton <dwootton@xxxxxxxxxx> wrote:
      Greg
      Have you had a chance to look at this?
      Dave

      <graycol.gif>Greg Watson ---05/21/2019 10:02:02 AM---Hi Dave, Thanks for looking into this. I'll try to take a look later this week.

      From:       Greg Watson <g.watson@xxxxxxxxxxxx>
      To:       Parallel Tools Platform general developers <ptp-dev@xxxxxxxxxxx>
      Date:       05/21/2019 10:02 AM
      Subject:       [EXTERNAL] Re: [ptp-dev] Fw: PTP java.lang.ClassNotFoundException: for com.sun.xml.internal.bind.v2.ContextFactory
      Sent by:       ptp-dev-bounces@xxxxxxxxxxx



      Hi Dave,

      Thanks for looking into this. I'll try to take a look later this week.

      Greg
      On May 21, 2019, at 7:41 AM, David Wootton <dwootton@xxxxxxxxxx> wrote:
      I realized I left out the link to the page that suggested using com.sun.xml.bind:jaxb-osgi (      http://www.descher.at/descher-vu/2019/01/java-11-jaxb-and-osgi/)to get the missing JAXB code.
      Dave
      ----- Forwarded by David Wootton/Poughkeepsie/Contr/IBM on 05/21/2019 07:38 AM -----

      From:       David Wootton/Poughkeepsie/Contr/IBM
      To:       Parallel Tools Platform general developers <ptp-dev@xxxxxxxxxxx>
      Date:       05/16/2019 05:07 PM
      Subject:       Re: [EXTERNAL] [ptp-dev] PTP java.lang.ClassNotFoundException: for com.sun.xml.internal.bind.v2.ContextFactory



      Looking at this further, it seems that CDT has solved this or a similar problem
      https://www.eclipse.org/lists/cdt-dev/msg33366.html
      https://bugs.eclipse.org/bugs/show_bug.cgi?id=542644

      I also found this, which suggests using com.sun.xml.bind:jaxb-osgi to get the missing JAXB code, where I found       https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-osgithat seems to point to the location to get it from.
      I don't know if this helps or is even possible to use in an       eclipse.org-hosted project
      Dave

      <graycol.gif>"David Wootton" ---05/15/2019 05:53:23 PM---I'm looking at this problem since it affects my plugin once Java 8 is no longer supported. I'm not s

      From:       "David Wootton" <dwootton@xxxxxxxxxx>
      To:       "Parallel Tools Platform general developers" <ptp-dev@xxxxxxxxxxx>
      Date:       05/15/2019 05:53 PM
      Subject:       [EXTERNAL] [ptp-dev] PTP java.lang.ClassNotFoundException: for com.sun.xml.internal.bind.v2.ContextFactory
      Sent by:       ptp-dev-bounces@xxxxxxxxxxx



      I'm looking at this problem since it affects my plugin once Java 8 is no longer supported. I'm not sure I'm anywhere near on the right track to figure this out. I found quite a few references to this problem within the past year by Google search using the words ContextFactory and Eclipse, a number of which refer to PTP bug 541264

      My understanding of the solutions suggested are to use versions 2.2.0 of the com.sun.xml.bind and javax.xml.bind, which I think means I need to find repositories that have these versions of the packages.

      I tried updating the photon.target target definition file to use a later Orbit repository, I20190320195810 which seems to have these, but that did not help. I also found       https://www.jesperdj.com/2018/09/30/jaxb-on-java-9-10-11-and-beyond/which explains how to specify a dependency for a maven build, but I'm not sure where this gets specified.

      Am I anywhere near the right track to figure this out?
      Dave      _______________________________________________
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