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Activator invalid problem [message #104091]

Sat, 19 January 2008 16:50

Eclipse User

------=_Part_3065_21721527.1200779543602
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Hi,
i have 2 simple bundles.one is HelloWorld bundle.in the start method of the second bundle i try to install the first bundle by using this:

String s = "File:../workspace/aaa/";
Bundle b = context.installBundle(s);

i got Exception:
org.osgi.framework.BundleException: The activator aaa.Activator for bundle aaa is invalid

but the bundle aaa runs well itself.
i am searching for the answer for a while.Can anyone give me suggestions about this?thanks.

regards
------=_Part_3065_21721527.1200779543602
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------=_Part_3065_21721527.1200779543602--

Re: Activator invalid problem [message #104145 is a reply to message #104091]

Sun, 20 January 2008 14:15

Eclipse User

Your Activator's start method is probably throwing an exception -- I'd guess
because of a problem with your URL.
Off the top of my head the protocol (file) might be case sensitive and
failing that you might try an absolute file location until you're sure
everything else is working.

To be sure I'd walk through your Activator's start method with a debugger.

HTH
-Simon

"lancel80" <lancelot2k4@hotmail.com> wrote in message
news:1487450.32211200779543604.JavaMail.root@cp1.dzone.com...
> Hi,
> i have 2 simple bundles.one is HelloWorld bundle.in the start method of
> the second bundle i try to install the first bundle by using this:
>
> String s = "File:../workspace/aaa/";
> Bundle b = context.installBundle(s);
>
> i got Exception:
> org.osgi.framework.BundleException: The activator aaa.Activator for bundle
> aaa is invalid
>
> but the bundle aaa runs well itself.
> i am searching for the answer for a while.Can anyone give me suggestions
> about this?thanks.
>
> regards

Re: Activator invalid problem [message #104183 is a reply to message #104145]

Mon, 21 January 2008 05:19

Eclipse User

Hi Simon,
i have tried the absolute file location and i got the same result.

regards

Re: Activator invalid problem [message #104222 is a reply to message #104183]

Mon, 21 January 2008 10:03

Eclipse User

Hmm... the framework is not succeeding when loading your Activator class.

This usually occurs because either your bundle's classpath is wrong (and the
framework can't find your Activator) or some dependency in your Activator is
not resolving.
I'd first take a look at your Bundle-ClassPath and Bundle-Activator name in
your manifest and make sure they're correct.

If that doesn't work I'd suggest using a debugger and setting a breakpoint
in org.eclipse.osgi.framework.internal.core.AbstractBundle.load Activator()
and walk through the loading of your Activator as this will give you a
chance to look at the underlying exception.

HTH
-Simon

"lancel80" <lancelot2k4@hotmail.com> wrote in message
news:23731244.34531200910802523.JavaMail.root@cp1.dzone.com...
> Hi Simon,
> i have tried the absolute file location and i got the same result.
>
> regards

Re: Activator invalid problem [message #104236 is a reply to message #104183]

Mon, 21 January 2008 11:02

Eclipse User

It is solved.In this method

installBundle
public Bundle installBundle(java.lang.String location)
throws BundleException

location - The location identifier of the bundle to install

i have some misunderstanding about this parameter location.
i think it should be the directory of the bundle,actually it must be a jar file(a bundle file).

so this works fine:

String s = "File:c:\\plugins\\aaa.jar";
Bundle b = context.installBundle(s);

thanks
regards

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