If you have a small sample that demonstrates the problem that seems
perfect for b.android.com.
On Dec 17, 6:01 pm, "B++" <bet...@gmail.com> wrote:
> After some further analysis, it seems that the problem lies on the
> DexFile. The PathClassLoader internally invokes the DexFile which
> apparently unzips the package to retrieve the class. However, these
> resources don't seem to be released.
>
> B.
>
> On Dec 17, 3:45 pm, "B++" <bet...@gmail.com> wrote:
>
> > Thanks for the response.
>
> > I have already run it using hprof and mat, and located the issue, and
> > the problem lies in here:
> > onCreate(..) {
> > ...
> > PathClassLoader classLoader = new PathClassLoader("/path/to/apk.apk",
> > getClassLoader());
> > classLoader.loadClass("path.to.class");
> > classLoader = null;
>
> > }
>
> > Only these three lines will cause a "leak" if you keep on creating
> > this activity and destroying it with the back button.
> > The class is getting loaded successfully, but the resources are never
> > released. As you can see, I set the reference of the classLoader to
> > null, and I never instantiate any object using the loaded class, but
> > the problem still persists.
>
> > I have isolated the code as above, and you can clearly see that the
> > memory is growing.
>
> > Can the getClassLoader() reference create a problem here?
>
> > Thanks
>
> > B.
>
> > On Dec 17, 2:57 pm, fadden <fad...@android.com> wrote:
>
> > > On Dec 17, 7:45 am, "B++" <bet...@gmail.com> wrote:
>
> > > > The problem is that this happens even if no objects are instantiated
> > > > using the loaded class. There seems a problem with garbage collector,
> > > > which doesn't seem to release resources about the loaded class on
> > > > Destroy even if there are no references to it.
>
> > > It usually turns out that something is holding a reference to whatever
> > > it is that isn't getting thrown away. The best way to figure this out
> > > is to get the HPROF output and run it through jhat or MAT.
>
> > > See also:
> > > http://android-developers.blogspot.com/2009/01/avoiding-memory-leaks....
> > > http://android.git.kernel.org/?p=platform/dalvik.git;a=blob_plain;f=d...
> > > http://kohlerm.blogspot.com/
>
>
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