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Date: Wed, 2 Dec 2009 02:46:20 +0000 (UTC)
From: "Dag H. Wanvik (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Commented: (DERBY-4458) Dalvik / Andoid compatibility
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    [ https://issues.apache.org/jira/browse/DERBY-4458?page=3Dcom.atlassian=
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Dag H. Wanvik commented on DERBY-4458:
--------------------------------------

Francois Orsini wrote on derby-dev Tue, 01 Dec 2009 09:49:00 -0800:

>This is a separate issue but last I heard about Dalvik is that there is
>still no support for dynamic bytecode translation at runtime  - Derby
>generates bytecode dynamically for every new SQL statement, so I doubt you
>might be able to get Derby running on Android until dynamic bytecode
>translation is available in the Dalvik VM at runtime

That would be a show-stopper, yes.
As for why the converter balks at Derby byte code, I have no idea. It is pr=
oduced by the standard Sun Java compiler. Marking this issue as Improvement=
.

> Dalvik / Andoid compatibility
> -----------------------------
>
>                 Key: DERBY-4458
>                 URL: https://issues.apache.org/jira/browse/DERBY-4458
>             Project: Derby
>          Issue Type: Improvement
>    Affects Versions: 10.5.3.0
>         Environment: dx 1.2 (from the Android SDK 2.0) running on Java 1.=
6
>            Reporter: Thomas G=C3=B6rres
>            Priority: Blocker
>
> derby.jar cannot be used on mobile devices running the Android OS. Androi=
d uses Dalvik as runtime environment, and the classfiles from derby.jar can=
not be translated to Dalvik byte code.
> Steps to repeat:
> 1. get the Android SDK from http://developer.android.com
> 2. navigate to [android-sdk]/platforms/android-1.5/tools
> 3. execute ./dx --dex path/to/derby.jar
> The dx tool should convert the JRE byte code to Dalvik byte code. Instead=
, it spits out this warning several time:
> warning: Ignoring InnerClasses attribute for an anonymous inner class tha=
t doesn't come with an associated EnclosingMethod attribute. (This class wa=
s probably produced by a broken compiler.)
> Then it runs out of memory:
> java.lang.OutOfMemoryError: Java heap space
> =09at com.android.dx.rop.code.ThrowingInsn.withNewRegisters(ThrowingInsn.=
java:116)
> =09at com.android.dx.ssa.NormalSsaInsn.toRopInsn(NormalSsaInsn.java:122)
> =09at com.android.dx.ssa.back.SsaToRop.convertInsns(SsaToRop.java:386)
> =09at com.android.dx.ssa.back.SsaToRop.convertBasicBlock(SsaToRop.java:36=
5)
> =09at com.android.dx.ssa.back.SsaToRop.convertBasicBlocks(SsaToRop.java:3=
00)
> =09at com.android.dx.ssa.back.SsaToRop.convertToRop(SsaToRop.java:277)
> =09at com.android.dx.ssa.back.SsaToRop.convert(SsaToRop.java:118)
> =09at com.android.dx.ssa.back.SsaToRop.convertToRopMethod(SsaToRop.java:7=
1)
> =09at com.android.dx.ssa.Optimizer.optimize(Optimizer.java:103)
> =09at com.android.dx.ssa.Optimizer.optimize(Optimizer.java:74)
> =09at com.android.dx.dex.cf.CfTranslator.processMethods(CfTranslator.java=
:269)
> =09at com.android.dx.dex.cf.CfTranslator.translate0(CfTranslator.java:131=
)
> =09at com.android.dx.dex.cf.CfTranslator.translate(CfTranslator.java:85)
> =09at com.android.dx.command.dexer.Main.processClass(Main.java:297)
> =09at com.android.dx.command.dexer.Main.processFileBytes(Main.java:276)
> =09at com.android.dx.command.dexer.Main.access$100(Main.java:56)
> =09at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:228)
> =09at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOp=
ener.java:245)
> =09at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener=
.java:130)
> =09at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.ja=
va:108)
> =09at com.android.dx.command.dexer.Main.processOne(Main.java:245)
> =09at com.android.dx.command.dexer.Main.processAllFiles(Main.java:183)
> =09at com.android.dx.command.dexer.Main.run(Main.java:139)
> =09at com.android.dx.command.dexer.Main.main(Main.java:120)
> =09at com.android.dx.command.Main.main(Main.java:87)

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