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- Reply: Henrique Prange: "Re: Problems starting Maven based WOApplication in WOLips 3.4.5503 on Windows XP"
- Reply: Lachlan Deck: "Re: Problems starting Maven based WOApplication in WOLips 3.4.5503 on Windows XP"
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Am 15.10.2008 um 22:25 schrieb Lachlan Deck:
> On 16/10/2008, at 2:30 AM, Lars Sonchocky-Helldorf wrote:
>
>> Am 15.10.2008 um 16:04 schrieb Lachlan Deck:
>>
>>> On 15/10/2008, at 10:51 AM, Lars Sonchocky-Helldorf wrote:
>>>
>>>> when trying to launch a Maven based WOApplication inside Eclipse
>>>> 3.4 / WOLips 3.4.5503 on a Windows XP machine which HASN'T
>>>> WebObjects installed at first I got some null pointer exception
>>>> which had something to do with not being able to read certain
>>>> environment variables (I had a stacktrace on it inside the error
>>>> log view in Eclipse but my co-worker did hit the clear button
>>>> when trying to work the problem out while I was at lunch :-(
>>>
>>> :-)
>
> Just to clarify, how was this working for you before? What's changed?
Don't ask … ;-)
before another co-worker of mine was developing the project on
Leopard. Now he is bussy with something else and we got a freshman
who should take over the project. My boss assigned the freshman a
Windows PC as workstation, and I am the one to get the project
started there. So basically what's changed is the OS the project is
developed on.
>
>>> All this is doing is looking for the JavaWebObjects bundle having
>>> been already loaded during started. i.e., it's calling
>>> NSBundle.bundleForName("JavaWebObjects") which in turn looks up
>>> an NSDictionary and is getting null in return... so it decides to
>>> throws an error.
>>>
>>>> What makes me wonder is that even when launching a Maven based
>>>> WOApplication a static WO installation seems to be required and
>>>> referred (environment variables).
>>>
>>> I don't believe that's true.
>>
>> hmm, at least the NPE in the Eclipse WOApps launcher went away
>> after setting the NEXT_ROOT env for the first time. This could -
>> of course - be completely unrelated.
>
> Okay. What was the stack trace of the NPE beforehand?
that is the famous stacktrace that got lost when my co-worked cleared
the error log in eclipse.
>
>>>> Shouldn't it work out of the box without any WO installed at the
>>>> machine at all (and loading all the dependencies from the
>>>> local .m2/repository instead)
>>>
>>
>> Our project structure looks like this:
>
> Cool. Sorry - had to eliminate the obvious.
>
>> and the project builds now (after switching to the 2.0.16-SNAPSHOT
>> version of maven-wolifecycle-plugin like Henrique suggested.)
>
> Okay. Great. So if you from TankDiskAll do
> $ mvn clean package
>
> What do classpath.properties, classpath.txt, and wobuild.properties
> look like in TankDiskAdmin/target?
like this:
- application/octet-stream attachment: classpath.properties
- text/plain attachment: classpath.txt
- application/octet-stream attachment: wobuild.properties
>
>> But the exception during the launch attempt remains …
>
> hmm. In your LaunchConfig for your app, on the Source tab do you
> see under the expanded Default all the jars and project
> dependencies you expect?
looks quite good (see screenshot below)
>
> Running within WOLips has some differences in that it does (perhaps
> did... I haven't tested with more recent nightlies to see if this
> is really still needed) have some dependencies on what it builds
> into project/build/YourProject.[woa|framework].
>
> So my launchconfig for one of my apps looks like this:<Picture 1.png>
and mine looks like this:
>
>
>
> You might want to have a look at what settings you've inherited
> from WOlips prefs in the WO tab of your launchconfig for the app.
> By default these are all ticked in WOLips prefs. I usually untick
> most of them except the ones that actually make sense to set
> manually. So you might need to play with these.<Picture 2.png>
I tried several variations here - which had no influence at all at
the exception during startup.
========================================================================
===============
Now I decided to dig deeper and have some additional notes for you
(of which I hope those might give you a clue on what's going on)
* I use the Q4E Eclipse PlugIn for Maven stuff inside Eclipse: http://
code.google.com/p/q4e/ http://q4e.googlecode.com/svn/trunk/
updatesite/ this plugin is responsible for creating the Maven
Classpath Container
* I found out that something/someone (the co-worker who developed the
project before when trying to help the freshman?) added the following
classpath variables in Eclipse:
* I installed jad/jadclipse and fired up the debugger on the startup
exception. Here are my findings (sit down comfortable, it's a looong
story):
The main cause, as we found out, seems to be the difference between
jar files and Mac OS X bundles. look at the following code (which a
little jad gave me):
WOResourceManager:
public static InputStream
__getJavaWebObjectsResourceAsStream(String name) throws
IllegalStateException {
/* 113*/ InputStream is = null;
/* 115*/ String errorCause = "";
/* 116*/ NSBundle aFrameworkBundle = NSBundle.bundleForName
("JavaWebObjects");
/* 117*/ if(aFrameworkBundle != null) {
/* 118*/ String aUserDefaultsKeysPath =
aFrameworkBundle.resourcePathForLocalizedResourceNamed(name, "");
/* 119*/ if(aUserDefaultsKeysPath != null) {
/* 120*/ is =
aFrameworkBundle.inputStreamForResourcePath(aUserDefaultsKeysPath);
} else {
/* 122*/ errorCause = (new StringBuilder()).append
("Unable to locate \"").append(name).append("\"").toString();
/* 123*/ is = com/webobjects/appserver/
WOResourceManager.getClassLoader().getResourceAsStream((new
StringBuilder())
.append("com/webobjects/
appserver/").append(name).toString());
}
} else {
/* 126*/ errorCause = "Unable to locate the
\"JavaWebObjects\" bundle";
/* 127*/ is = com/webobjects/appserver/
WOResourceManager.getClassLoader().getResourceAsStream((new
StringBuilder())
.append("com/webobjects/
appserver/").append(name).toString());
}
/* 129*/ if(is == null) {
/* 130*/ NSLog.err.appendln((new StringBuilder()).append
("<WOResourceManager> ").append(errorCause).toString());
/* 131*/ throw new IllegalStateException(errorCause);
} else {
/* 133*/ return is;
}
}
in line 116 NSBundle.bundleForName("JavaWebObjects"); fails because
in line 527 BundlesNamesTable was empty: {}
NSBundle:
public static synchronized NSBundle bundleForName(String
aName) {
/* <-MISALIGNED-> */ /* 516*/ NSBundle bundle = null;
/* <-MISALIGNED-> */ /* 518*/ if(aName != null) {
String fixedName;
/* <-MISALIGNED-> */ /* 521*/ if(aName.endsWith
(".framework"))
/* <-MISALIGNED-> */ /* 522*/ fixedName =
NSPathUtilities.stringByDeletingPathExtension(aName);
/* <-MISALIGNED-> */ /* 524*/ else
/* <-MISALIGNED-> */ /* 524*/ fixedName = aName;
/* <-MISALIGNED-> */ /* 527*/ bundle = (NSBundle)
BundlesNamesTable.objectForKey(fixedName);
}
/* <-MISALIGNED-> */ /* 530*/ return bundle;
}
this in turn was caused by the failure of LoadBundlesFromClassPath()
during classloading of NSBundle in the static block:
static {
.
.
.
/* <-MISALIGNED-> */ /* 349*/ NSArray classpath =
NSArray._mutableComponentsSeparatedByString((new StringBuilder
()).append(System.getProperty("java.class.path")).append
(File.pathSeparator).append(NSProperties.getProperty
("com.webobjects.classpath")).toString(), File.pathSeparator);
/* <-MISALIGNED-> */ /* 352*/ NSMutableArray
cleanedUpClassPath = new NSMutableArray();
/* <-MISALIGNED-> */ /* 353*/ Iterator iterator =
classpath.iterator();
/* <-MISALIGNED-> */ /* 353*/ do {
/* <-MISALIGNED-> */ /* 353*/ if(!iterator.hasNext())
/* <-MISALIGNED-> */ /* 354*/ break;
/* <-MISALIGNED-> */ /* 354*/ String fixedComponent =
NSPathUtilities.stringByNormalizingExistingPath((String)iterator.next
());
/* <-MISALIGNED-> */ /* 355*/ if(fixedComponent !=
null && fixedComponent.length() > 0)
/* <-MISALIGNED-> */ /* 356*/
cleanedUpClassPath.add(fixedComponent);
} while(true);
/* <-MISALIGNED-> */ /* 363*/ for(int i =
cleanedUpClassPath.count() - 1; i >= 0; i--) {
/* <-MISALIGNED-> */ /* 364*/ String component =
(String)cleanedUpClassPath.objectAtIndex(i);
/* <-MISALIGNED-> */ /* 366*/ if
(cleanedUpClassPath.indexOfObject(component) != i)
/* <-MISALIGNED-> */ /* 367*/
cleanedUpClassPath.removeObjectAtIndex(i);
}
/* <-MISALIGNED-> */ /* 370*/ ClassPath = cleanedUpClassPath;
/* <-MISALIGNED-> */ /* 373*/ LoadBundlesFromClassPath
(ClassPath);
.
.
.
}
None of the following classpath entries was loaded …
the value of ClassPath in line 370 was:
( C:\Dokumente und Einstellungen\cem\workspace\TankDiskAll
\Applications\TankDiskServer\build\TankDiskServer.woa\Contents
\Resources\Java,
C:\Dokumente und Einstellungen\cem\.m2\repository\com\apple\webobjects
\JavaXML\5.4.2\JavaXML-5.4.2.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\com\apple\webobjects
\JavaJDBCAdaptor\5.4.2\JavaJDBCAdaptor-5.4.2.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\com\apple\webobjects
\JavaEOAccess\5.4.2\JavaEOAccess-5.4.2.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\com\apple\webobjects
\JavaEOControl\5.4.2\JavaEOControl-5.4.2.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\com\apple\webobjects
\JavaWebObjects\5.4.2\JavaWebObjects-5.4.2.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\com\apple\webobjects
\JavaFoundation\5.4.2\JavaFoundation-5.4.2.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\com\apple\webobjects
\JavaWOExtensions\5.4.2\JavaWOExtensions-5.4.2.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\postgresql
\postgresql\7.4.1-jdbc3\postgresql-7.4.1-jdbc3.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\javax\mail\mail
\1.4.1\mail-1.4.1.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\assense\shared
\PostgreSQLPlugIn\1.5.4\PostgreSQLPlugIn-1.5.4.jar,
C:\Dokumente und Einstellungen\cem\.m2\repository\javax\activation
\activation\1.1\activation-1.1.jar )
… , because the loading of bundles works like this:
NSBundle:
private static void LoadBundlesFromClassPath(NSArray
array) {
/* <-MISALIGNED-> */ /* 741*/ Enumeration en =
array.objectEnumerator();
/* <-MISALIGNED-> */ /* 741*/ do {
/* <-MISALIGNED-> */ /* 741*/ if(!en.hasMoreElements())
/* <-MISALIGNED-> */ /* 742*/ break;
/* <-MISALIGNED-> */ /* 742*/ NSBundle b = null;
/* <-MISALIGNED-> */ /* 743*/ String nextPathComponent =
(String)en.nextElement();
/* <-MISALIGNED-> */ /* 744*/ if(couldBeABundle
(nextPathComponent))
/* <-MISALIGNED-> */ /* 745*/ b =
_bundleWithPathShouldCreateIsJar(nextPathComponent, true, false);
/* <-MISALIGNED-> */ /* 747*/ if(b != null)
/* <-MISALIGNED-> */ /* 748*/ b.postNotification();
} while(true);
}
and the check whether something at the classpath is a bundle or not
is based on the following code:
NSBundle:
private static boolean couldBeABundle(String aPath) {
/* <-MISALIGNED-> */ /* 586*/ boolean isBundle = false;
/* <-MISALIGNED-> */ /* 587*/ NSMutableArray resourcesSubdirs
= new NSMutableArray();
/* <-MISALIGNED-> */ /* 589*/ int index = aPath.lastIndexOf
(RSUFFIX);
/* <-MISALIGNED-> */ /* 591*/ if(index == -1) {
/* <-MISALIGNED-> */ /* 593*/ resourcesSubdirs.addObject
(aPath.concat(RSUFFIX)); // Resources
/* <-MISALIGNED-> */ /* 594*/ resourcesSubdirs.addObject
(aPath.concat(CSUFFIX)); // Contents
} else {
/* <-MISALIGNED-> */ /* 596*/ resourcesSubdirs.addObject
(aPath.substring(0, index + RSUFFIX.length()));
}
/* <-MISALIGNED-> */ /* 599*/ Iterator iterator =
resourcesSubdirs.iterator();
/* <-MISALIGNED-> */ /* 599*/ do {
/* <-MISALIGNED-> */ /* 599*/ if(!iterator.hasNext())
/* <-MISALIGNED-> */ /* 600*/ break;
/* <-MISALIGNED-> */ /* 600*/ File file = new File((String)
iterator.next());
/* <-MISALIGNED-> */ /* 601*/ if(!file.exists() || !
file.isDirectory())
/* <-MISALIGNED-> */ /* 602*/ continue;
/* <-MISALIGNED-> */ /* 602*/ String files[] = file.list
(TheInfoDictFilter); // looking for info.plist named file
/* <-MISALIGNED-> */ /* 603*/ if(files.length <= 0)
/* <-MISALIGNED-> */ /* 604*/ continue;
/* <-MISALIGNED-> */ /* 604*/ isBundle = true;
/* <-MISALIGNED-> */ /* 605*/ break;
} while(true);
/* <-MISALIGNED-> */ /* 610*/ return isBundle;
}
so this code looks for each entry in the classpath if there is a file
named "info.plist" inside the subdirectories Resources and Resources/
Contents . If not it isn't considered a bundle.
is everything clear so far?
========================================================================
===============
Because of the failure of NSBundle.bundleForName("JavaWebObjects") in
line 116 of WOResourceManager, WOResourceManager falls back to the
following:
} else {
/* 126*/ errorCause = "Unable to locate the
\"JavaWebObjects\" bundle";
/* 127*/ is = com/webobjects/appserver/
WOResourceManager.getClassLoader().getResourceAsStream((new
StringBuilder())
.append("com/webobjects/
appserver/").append(name).toString());
}
where it tries to load "com/webobjects/appserver/
WOPropertyKeys.plist" at the first occasion from any jars in the
classpath (it looks even in the bootclasspath).
I found a file (next to several others) inside
JavaWebObjects-5.4.2.jar, but there in a Folder named "Resources",
not inside com/webobjects/appserver/
when trying to load that Resource the something deep inside Java
Classloading logic tried to open this path:
\C:\Dokumente und Einstellungen\cem\.m2\repository\com\apple
\webobjects\JavaWebObjects\5.4.2\JavaWebObjects.jar (note the leading
backslash and the omission of the version string "-5.4.2") what
resulted in some FileNotFoundException which was catched by the
deeper levels of the Classloading logic.
Because the Classloading logic was also looking inside TankDiskServer
\build\TankDiskServer.woa\Contents\Resources\Java I just created the
directory structure "com/webobjects/appserver/" and copied everything
from inside the "Resource" directory of JavaWebObjects-5.4.2.jar over
there. Now at least my first exception was gone but the trouble is
not over yet.
========================================================================
===============
now I am getting:
[2008-10-16 20:25:46 CEST] <main> WebObjects version = Not Available
[2008-10-16 20:25:46 CEST] <main> NSBundle is unable to find
JavaWebObjects.framework -- unable to load
"ExtensionsForResources.plist" from there. Ignoring.
[2008-10-16 20:25:46 CEST] <main> A fatal exception occurred: null
[2008-10-16 20:25:46 CEST] <main> java.lang.ExceptionInInitializerError
at com.webobjects._ideservices._WOProject.ideProjectAtPath
(_WOProject.java:85)
at
com.webobjects.appserver._private.WOProjectBundle._isProjectBundlePath
(WOProjectBundle.java:225)
at
com.webobjects.appserver._private.WODeployedBundle.bundleWithNSBundle
(WODeployedBundle.java:745)
at
com.webobjects.appserver._private.WODeployedBundle.deployedBundle
(WODeployedBundle.java:124)
at com.webobjects.appserver.WOResourceManager._initAppBundle
(WOResourceManager.java:140)
at com.webobjects.appserver.WOResourceManager.<init>
(WOResourceManager.java:60)
at com.webobjects.appserver.WOApplication.createResourceManager
(WOApplication.java:2067)
at com.webobjects.appserver.WOApplication.<init>
(WOApplication.java:841)
at com.assense.core.wo.AssenseApplication.<init>
(AssenseApplication.java:25)
at com.tankdisk.Application.<init>(Application.java:67)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance
(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance
(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at java.lang.Class.newInstance0(Class.java:350)
at java.lang.Class.newInstance(Class.java:303)
at com.webobjects.appserver.WOApplication.main(WOApplication.java:
547)
at com.tankdisk.Application.main(Application.java:37)
Caused by: java.lang.IllegalStateException: Unable to find any
resource extensions in either JavaWebObjects.framework or the main
bundle.
at com.webobjects._ideservices._IDEProjectPBX.<clinit>
(_IDEProjectPBX.java:183)
... 18 more
>
>
>
> with regards,
> --
>
> Lachlan Deck
>
I hope you didn't fall asleep while reading this looooong mail!
regards,
Lars
- Next message: Lars Sonchocky-Helldorf: "Re: WOLips maven-wolifecycle-plugin bug?"
- Previous message: Mike Schrag: "Re: New Hotness and new .woa structure"
- In reply to: Lachlan Deck: "Re: Problems starting Maven based WOApplication in WOLips 3.4.5503 on Windows XP"
- Next in thread: Henrique Prange: "Re: Problems starting Maven based WOApplication in WOLips 3.4.5503 on Windows XP"
- Next in thread: Henrique Prange: "Re: Problems starting Maven based WOApplication in WOLips 3.4.5503 on Windows XP"
- Reply: Henrique Prange: "Re: Problems starting Maven based WOApplication in WOLips 3.4.5503 on Windows XP"
- Reply: Lachlan Deck: "Re: Problems starting Maven based WOApplication in WOLips 3.4.5503 on Windows XP"
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