No I'm not. I'm using DTO to transfer objects to the client.

On Wed, May 4, 2011 at 12:48 PM, Juan Pablo Gardella <
[email protected]> wrote:

> You have this exception: Caused by: java.lang.ClassNotFoundException:
> javax.jdo.spi.Detachable
>
> Are you use JDO in client side?
>
> 2011/5/4 Kayode Odeyemi <[email protected]>
>
>>  Firstly, about 2 weeks ago I started receiving the
>> exception, CreateProcess error=87, The parameter is incorrect. This occurs
>> when I try to run my app on devmode on Google App Engine. I have searched
>> all over the internet and I was able to solve this by
>> adding useexternalfile="yes" to ant build.xml at the javadoc target. But,
>> this was solved only when I'm not running in devmode. That is, I'm running
>> the app directly at http://localhost:8888/[app-name]. The error is below;
>>
>> java.io.IOException: Cannot run program
>> "C:\Java\jdk1.6.0_06\jre\bin\java.exe" (in directory
>> "D:\AllData\netBeans_Projects\Listings"): CreateProcess error=87, The
>> parameter is incorrect
>>         at java.lang.ProcessBuilder.start(ProcessBuilder.java:459)
>>         at java.lang.Runtime.exec(Runtime.java:593)
>>         at
>> org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Execute.java:827)
>>         at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:445)
>>         at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:459)
>>         at org.apache.tools.ant.taskdefs.Java.fork(Java.java:791)
>>         at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:214)
>>         at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:135)
>>         at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108)
>>         at
>> org.datanucleus.enhancer.tools.EnhancerTask.execute(EnhancerTask.java:100)
>>         at
>> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
>>         at sun.reflect.GeneratedMethodAccessor233.invoke(Unknown Source)
>>         at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>
>> Secondly, I have gotten my app up to advanced stage where I am adding
>> maps, extensive use of GWT for DOM Manipulation to improve UI etc, but when
>> I try to build my app, I get the error below;
>>
>> [ERROR] Unexpected
>> java.lang.NoClassDefFoundError: javax/jdo/spi/Detachable
>>         at java.lang.ClassLoader.defineClass1(Native Method)
>>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>>         at
>> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
>>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
>>         at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>>  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>>         at java.lang.Class.forName0(Native Method)
>>         at java.lang.Class.forName(Class.java:247)
>>         at
>> com.google.gwt.dev.javac.TypeOracleMediator.resolveAnnotationValue(TypeOracleMediator.java:710)
>>         at
>> com.google.gwt.dev.javac.TypeOracleMediator.createAnnotation(TypeOracleMediator.java:442)
>>         at
>> com.google.gwt.dev.javac.TypeOracleMediator.resolveAnnotation(TypeOracleMediator.java:608)
>>         at
>> com.google.gwt.dev.javac.TypeOracleMediator.resolveAnnotations(TypeOracleMediator.java:623)
>>         at
>> com.google.gwt.dev.javac.TypeOracleMediator.resolveClass(TypeOracleMediator.java:768)
>>          at
>> com.google.gwt.dev.javac.TypeOracleMediator.addNewUnits(TypeOracleMediator.java:385)
>>         at
>> com.google.gwt.dev.javac.CompilationState.assimilateUnits(CompilationState.java:165)
>>         at
>> com.google.gwt.dev.javac.CompilationState.<init>(CompilationState.java:82)
>>         at
>> com.google.gwt.dev.javac.CompilationStateBuilder.doBuildFrom(CompilationStateBuilder.java:392)
>>         at
>> com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom(CompilationStateBuilder.java:275)
>>         at
>> com.google.gwt.dev.cfg.ModuleDef.getCompilationState(ModuleDef.java:299)
>>         at com.google.gwt.dev.Precompile.precompile(Precompile.java:529)
>>         at com.google.gwt.dev.Precompile.precompile(Precompile.java:466)
>>         at com.google.gwt.dev.Compiler.run(Compiler.java:205)
>>         at com.google.gwt.dev.Compiler.run(Compiler.java:177)
>>         at com.google.gwt.dev.Compiler$1.run(Compiler.java:149)
>>         at
>> com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:87)
>>         at
>> com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:81)
>>         at com.google.gwt.dev.Compiler.main(Compiler.java:156)
>> Caused by: java.lang.ClassNotFoundException: javax.jdo.spi.Detachable
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>>         ... 33 more
>>
>> One more thing to add is, whenever I make simple changes to the
>> client-side code(GWT), this error pops up as well, which always requires me
>> to clean it and then build again, which obviously have started to refuse to
>> even compile successfully. FYI, most of these problems started occuring when
>> I added to my project libraries gwt-user.jar, majorly because I needed to
>> use JSON to handle a REST request (Response dispatched to a Place using
>> Activity & Place MVP). Initially this jar file was included in my project by
>> default, hence the package com.google.gwt.json wasn't available.
>>
>> Dev environment:
>>
>>    - GWT 2.1
>>    - Google App Engine 1.4.3
>>    - JDO
>>    - Spring 3
>>    - Activity and Place
>>
>>
>> Can somebody in the name of God help me with this. It's been weeks I've
>> trying to get out of this.
>>
>> Regards
>> --
>> Odeyemi 'Kayode O.
>> http://www.sinati.com
>>
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>
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-- 
Odeyemi 'Kayode O.
http://www.sinati.com

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