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From "Rafael Bachiller (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (FELIX-3854) Problem running Felix in Android 4.1 ad 4.2 (JB)
Date Wed, 06 Mar 2013 20:44:16 GMT

    [ https://issues.apache.org/jira/browse/FELIX-3854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13595079#comment-13595079
] 

Rafael Bachiller edited comment on FELIX-3854 at 3/6/13 8:43 PM:
-----------------------------------------------------------------

Hi Robin,

Great !!

As far as i know it is not necessary to place the bundles inside dexOutputDir as it is only
a cache directory that is directly managed by Apache Felix. For example, i place the OSGi
bundles in the SD card and execute the install OSGi command. Then, Apache Felix gets the .jar
file, places it inside the dexOutputDir and, finally, load the .dex file that had been included
inside the .jar file.

In relation with the restriction in JB, this is the official link where it is explained: 
http://developer.android.com/reference/dalvik/system/DexClassLoader.html
                
      was (Author: rbs):
    Hi Robin,

Great !!

As far as i know it is not necessary to place the bundles inside dexOutputDir as it is only
a cache directory that directly manages Apache Felix. For example, i place the OSGi bundles
in the SD card and execute the install OSGi command. Then, Apache Felix gets the .jar file,
places it inside the dexOutputDir and, finally, load the .dex file that had been included
inside the .jar file.

In relation with the restriction in JB, this is the official link where it is explained: 
http://developer.android.com/reference/dalvik/system/DexClassLoader.html
                  
> Problem running Felix in Android 4.1 ad 4.2 (JB)
> ------------------------------------------------
>
>                 Key: FELIX-3854
>                 URL: https://issues.apache.org/jira/browse/FELIX-3854
>             Project: Felix
>          Issue Type: Bug
>          Components: Framework
>    Affects Versions: framework-4.0.3
>         Environment: Once Felix is running in the smartphone (Samsung Galaxy Nexus with
Android 4.2), the problem arises when a new bundle is being installed (considering that the
felix cache directory has been placed in the external sd card by using the property org.osgi.framework.storage).
>            Reporter: Rafael Bachiller
>            Assignee: Karl Pauls
>            Priority: Minor
>              Labels: Android, Bean, Jelly, patch
>
> During the installation process, Felix places the .jar in the cache and then obtains
the dex file that is inside the jar file in order to put the dex file in the cache directory.
Then, Felix executes it.
> In the new versions of Android, this process fails because the system does not allow
any program to place and execute any dex file in the sd card. The code line that illustrate
the problem is in the file felix/framework/src/main/java/org/apache/felix/frameworBundleWiringImp.java
(line 2271).
> In my modest opinion, there are two possible solutions:
> a) For these newer versions of Android, it is not possible to place the cache in the
external sd card. For this solution no changes are needed in Felix, but it creates a new limitation
for running in the Android devices (the cache can only be placed in the internal memory at
runtime).
> b) Create a new parameter (e.g. felix.cache.dexfiles) that can be applied to Android
systems that indicates to Felix where to place the dex files. Thus, Felix is not going to
store in the same place the .jar files and the .dex files (avoiding to waste the internal
memory). For this solution, it is necessary to create the parameter in Felix and to modify
the line that has been indicated before.
> Thank you very much in advance.

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