Hi Richard,
Thank you for replying so quickly.
If you install fragment bundle before host-bundle, this error will occur when
we shutdown the framework.
This exception didn't kill the application, it just display a exception stack
message on console.
ERROR: Bundle HelloworldImpl [2] Error detaching fragments.
(java.lang.NullPointerException)
java.lang.NullPointerException
at java.util.ArrayList.<init>(Unknown Source)
at
org.apache.felix.framework.ModuleImpl.attachFragments(ModuleImpl.java:1183)
at
org.apache.felix.framework.BundleImpl.closeModules(BundleImpl.java:138)
at org.apache.felix.framework.BundleImpl.close(BundleImpl.java:101)
at
org.apache.felix.framework.Felix$SystemBundleActivator.stop(Felix.java:4593)
at
org.apache.felix.framework.util.SecureAction.stopActivator(SecureAction.java:651)
at org.apache.felix.framework.Felix.stopBundle(Felix.java:2226)
at org.apache.felix.framework.Felix$3.run(Felix.java:876)
at java.lang.Thread.run(Unknown Source)
2011-04-03
Huisheng Xu
发件人： Richard S. Hall
发送时间： 2011-04-03 01:15:31
收件人： users
抄送：
主题： Re: Could we check Null when attachFragments in felix-framework-3.20
Can you tell me how to reproduce this?
-> richard
On 04/02/2011 06:40 AM, echo_o wrote:
> Hi guys,
>
> After I upgrade felix framework from 3.0.9 to 3.2.0, I met an error like
> this:
>
> java.lang.NullPointerException
> at java.util.ArrayList.<init>(ArrayList.java:131)
> at
> org.apache.felix.framework.ModuleImpl.attachFragments(ModuleImpl.java:1183)
> at
> org.apache.felix.framework.BundleImpl.closeModules(BundleImpl.java:138)
> at org.apache.felix.framework.BundleImpl.close(BundleImpl.java:101)
> at
> org.apache.felix.framework.Felix$SystemBundleActivator.stop(Felix.java:4593)
> at
> org.apache.felix.framework.util.SecureAction.stopActivator(SecureAction.java:651)
> at org.apache.felix.framework.Felix.stopBundle(Felix.java:2226)
> at org.apache.felix.framework.Felix$3.run(Felix.java:876)
> at java.lang.Thread.run(Thread.java:619)
>
> It seems that there is no Null checking when felix close a Module with
> fragments. Here is the codes from ModuleImpl.java, line 1183.
>
> List<Wire> hostWires = new ArrayList<Wire>(m_fragments.get(i).getWires());
>
> It would be better to check whether getWires() return null before using it.
> Thank you very much
>
> 2011-04-02
>
>
>
> echo_o
>
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