Hi Taras, Thank you so much for the detailed response.
I think you're right that when I run the Android project from Eclipse it both compiles the sources into classes and the classes into a dex file. I also agree that the most elegant way would be to add the translation step to the ADT plugin source code, thus enabling users to run Retrotranslator on the sources from within Eclipse. In some cases, such as mine, this is preferred over manually translating libraries that contain annotations and then adding them to the the main project (for instance, to simplify debugging). There is a workaround to prevent classes that have already been translated by Retrotranslator to be recompiled from source. The workaround is to disable the Java Builders from within each project's properties. I tried this and no longer receive the Annotation error: java.lang.Class.isAnnotationPresent(Class.java:1131) However, I'm getting the error shown below (and listed on the full stack trace in [1]). I took care to include retrotranslator-android-1.2.6.jar as an external library to all Tuscany projects, including calculator-android, as you pointed out. Additionally, I confirmed through the timestamps on class files and dex file that retrotranslated classes are not being recompiled and that the dex file was generated a few minutes after running retrotranslator. java.lang.NoClassDefFoundError: net.sf.retrotranslator.android.main.java.lang._Class I've tried this running retrotranslator as shown below, setting the target to java 1.5 at first and then to 1.4. $ java -jar /../Retrotranslator-1.2.6-bin/retrotranslator-transformer-1.2.6.jar -srcdir /../workspace -target 1.5 -reflection safe -stripannot -classpath /../Retrotranslator-1.2.6-bin/retrotranslator-android-1.2.6.jar -verbose What could be going wrong? Any suggestions would be greatly appreciated. [1] http://cwiki.apache.org/confluence/display/TUSCANYWIKI/14Jun2008 On Wed, Jun 4, 2008 at 6:44 PM, Taras Puchko <[EMAIL PROTECTED]> wrote: > Hi Oscar, > > Retrotranslator does it's job by modifying compiled classes in the > following way: > 1. Embedding into each class its metadata (including annotations) as one > big character string. > 2. Replacing some method invocations, so java.lang.Class.isAnnotationPresent > is being replaced with > net.sf.retrotranslator.android.main.java.lang.Class.isAnnotationPresent etc. > > So when you call getAnnotations() on a particular class the code from > retrotranslator-android-1.2.6.jar will parse the corresponding metadata and > return the result. > > AFAIK when you run your Android project from Eclipse it both compiles your > sources into classes and the classes into a dex file. So Retrotranslator has > no chance to modify classes in between unless you fix the ADT plugin. The > workaround is not to put your sources into Eclipse and to process it with > javac, Retrotranslator and jar manually. After that you may add the jar to > Eclipse. > > If you execute the following line you should obtain mytuscany-android.jar > that is one-third bigger then the original mytuscany.jar and does not > contain references to Java 5 reflection methods. > > java -jar retrotranslator-transformer-1.2.6.jar -srcjar mytuscany.jar > -destjar mytuscany-android.jar -target 1.5 -reflection safe -stripannot > -classpath retrotranslator-android-1.2.6.jar > > So the line java.lang.Class.isAnnotationPresent(Class.java:1131) in the > stack trace means that the application is based on non-translated binaries. > Maybe you had successfully processed your classes but Eclipse overwrote them > after that or Eclipse had already created the dex file before you executed > Retrotranslator. > > If you're using Eclipse the most elegant way would be to add the > translation step to the ADT plugin source code, but otherwise don't include > Tuscany sources into the project, only include a jar processed by > Retrotranslator and retrotranslator-android-1.2.6.jar. > > > Cheers, > Taras. > > > On Wed, Jun 4, 2008 at 3:21 PM, <[EMAIL PROTECTED]> wrote: > >> Hi Taras, >> >> I'm trying to run Apache Tuscany on Android as part of my Google >> Summer of Code project: Incubating and Android in Delft [1]. I've run >> all the (modified) source code through retrotranslator but still get >> "native method not implemented" errors that I believe are related to >> the lack of annotations support on the current Android SDK. >> >> To test Apache Tuscany I'm running a modified calculator project >> (setup as an Android project) called calculator-android. I have >> imported the Apache Tuscany SCA modules and modified code for Android >> into an eclipse workspace. Then I'm running retrotranslator from the >> command line as shown below. I'm keeping the target code at java 1.5 >> but get the annotation related errors when running the calculator- >> android as an Android Application. The same thing happens when I try >> to convert the code to java 1.4. >> >> $ java -jar /../retrotranslator-transformer-1.2.6.jar -target 1.5 - >> stripannot -embed support -reflection safe -classpath /../ >> retrotranslator-android-1.2.6.jar -srcdir /../workspace/ -verbose >> >> Any advice you may have will be greatly appreciated. There's more >> details on what I'm currently doing in [2] in case you can help. >> >> Thanks in advance. >> >> [1] >> http://cwiki.apache.org/confluence/display/TUSCANYWIKI/Allow+Google+Android+applications+to+easily+consume+business+services >> [2] http://cwiki.apache.org/confluence/display/TUSCANYWIKI/30may2008 >> >> best, >> -oscar >> >> On Apr 3, 5:40 pm, Taras Puchko <[EMAIL PROTECTED]> wrote: >> > I've made a mistake in my previous post, the correct command is the >> > following: >> > >> > java -jarretrotranslator-transformer-1.2.6.jar -target 1.5 - >> > stripannot -embed support -reflection safe -classpathretrotranslator- >> > android-1.2.6.jar -srcjar gdata-media-1.0.jar >> > >> > To use annotations in your code extract classes that contain or >> > manipulate annotations into a separate library, translate it >> withRetrotranslatorand add it as a dependency to the main project. >> > >> > Regards, >> > Taras. >> > >> > On 3 Кві, 09:42, Taras Puchko <[EMAIL PROTECTED]> wrote: >> > >> > > If your application does not declare or use annotations itself you may >> > > translate the dependency before adding it to the Eclipse project: >> > >> > > java -jarretrotranslator-transformer-1.2.6.jar -target 1.5 -embed >> > > support -reflection safe -stripannot -srcjar gdata-media-1.0.jar >> > >> > > Regards, >> > > Taras. >> > >> > > On 28 Бер, 17:18, nwmotogeek <[EMAIL PROTECTED]> wrote: >> > >> > > > That link describes how to add a target to the build.xml but I don't >> know >> > > > how to do that with Eclipse can some one point me to instructions on >> this? >> > >> > > > Thanks, >> > > > -Dave >> > > > > > -- best, -oscar Oscar Castañeda --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. 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