Skip to main content

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [equinox-dev] Bootdelegation question

See the osgi.compatibility.bootdelegation option in the Eclipse Help.

osgi.compatibility.bootdelegation - if set to "true" then the parent (boot by default) classloader is delegated to as a last resort if a class or resource cannot be found. The default value is "true".

When launching Equinox under Eclipse the org.eclipse.equinox.launcher is used to launch the framework (just like when you launch a normal Eclipse SDK instance). Launching equinox this way enables the boot delegation compatibility flag by default. Launching equinox with "-jar org.eclipse.osgi ..." disables this option and Equinox will use strict OSGi delegation rules for boot delegation.

Tom



Inactive hide details for Oleg Zhurakousky ---10/08/2008 12:49:27 PM---Thanks guys!!! Looks like starting Equinox under EclipseOleg Zhurakousky ---10/08/2008 12:49:27 PM---Thanks guys!!! Looks like starting Equinox under Eclipse makes the difference, although I can't see what that would be (checked


From:

Oleg Zhurakousky <oleg.zhurakousky@xxxxxxxxxxxxxxxx>

To:

Equinox development mailing list <equinox-dev@xxxxxxxxxxx>

Date:

10/08/2008 12:49 PM

Subject:

Re: [equinox-dev] Bootdelegation question




Thanks guys!!!
Looks like starting Equinox under Eclipse makes the difference, although I can't see what that would be (checked generated config.ini etc. . . nothing suspicious)
Starting the same system bundle from the command line renders the expected results:

> java -Dorg.osgi.framework.bootdelegation=org.w3c.* -jar org.eclipse.osgi_3.4.2.R34x_v20080826-1230.jar -console -clean

osgi>ss
id State Bundle
0 ACTIVE org.eclipse.osgi_3.4.2.R34x_v20080826-1230
1 INSTALLED OSGiBootDelegationBundle_1.0.0

osgi> start 1
class java.lang.String
interface org.w3c.dom.Attr

If bootdelegation option is removed CNFE is thrown during start of the bundle

Thx
Oleg

On Oct 8, 2008, at 12:57 PM, Stuart McCulloch wrote:
      2008/10/9 Oleg Zhurakousky <oleg.zhurakousky@xxxxxxxxxxxxxxxx>
        Nice to find you here Rob

        Yes I am certain (here are all the options that are set)
        -Declipse.ignoreApp=true
        -Dosgi.noShutdown=true
        -Dosgi.clean=true

        One thing I will admit that I am running Equinox within eclipse pde. I'll try from the command line (not sure if it would make the difference)

      see also:
      http://wiki.eclipse.org/Equinox_Boot_Delegation
      (IIRC Equinox doesn't run in "strict" OSGi mode by default...)
        Oleg

        On Oct 8, 2008, at 12:36 PM, Rob Harrop wrote:
            Oleg,

            Are you certain that the Equinox you are running in doesn't have the boot delegation set to include org.w3c.*?

            Rob

            ----- "Oleg Zhurakousky" <
            oleg.zhurakousky@xxxxxxxxxxxxxxxx> wrote:
                If I am reading the spec correctly only java.* are loaded from the
                boot class path. All other packages must be declared
                with explicit imports.
                So something like this without
                specifying org.osgi.framework.bootdelegation=org.w3c.*


                public void start(BundleContext context) throws Exception {
                System. out .println(Class.forName( "java.lang.String" ));
                System. out .println(Class.forName( "org.w3c.dom.Attr" ));
                }
                should result in CNFE on the second line.


                Well, it actually works just fine without bootdelegation option. I
                figured I missed something, so may be some one can steer me in the
                right direction.
                Cheers
                Oleg
                _______________________________________________
                equinox-dev mailing list
                equinox-dev@xxxxxxxxxxx
                https://dev.eclipse.org/mailman/listinfo/equinox-dev

            --
            Rob Harrop
            SpringSource

            Registered in England & Wales - Registration Number 5187766
            Registered Office: A2 Yeoman Gate, Yeoman Way, Worthing, West Sussex, BN13 3QZ, UK

            This e-mail and any attachments transmitted with it are strictly confidential and intended solely for the person or entity to whom they are addressed. Unauthorised use, copying, disclosure or distribution is prohibited. If you receive this e-mail in error please notify the sender immediately and then delete it along with any attachments. E-mails should be checked by the recipient to ensure that there are no viruses and Interface21 does not accept any responsibility if this is not done. Any views or opinions presented are solely those of the author and do not necessarily represent those of Interface21.
            _______________________________________________
            equinox-dev mailing list

            equinox-dev@xxxxxxxxxxx
            https://dev.eclipse.org/mailman/listinfo/equinox-dev


        _______________________________________________
        equinox-dev mailing list

        equinox-dev@xxxxxxxxxxx
        https://dev.eclipse.org/mailman/listinfo/equinox-dev



      --
      Cheers, Stuart

      _______________________________________________
      equinox-dev mailing list

      equinox-dev@xxxxxxxxxxx
      https://dev.eclipse.org/mailman/listinfo/equinox-dev
_______________________________________________
equinox-dev mailing list
equinox-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/equinox-dev


GIF image

GIF image


Back to the top