gwt-cal compatibility problems with GXT

[sesar]

Hi

I got the next error when I include a project that is using gwt-cal, in a project that is using GXT libraries.
Do you have any known compatibility problems when gwt-cal component is used in a project with GXT dependencies?

Compiling module com.telvent.galeno.gwt.healthCareProfessional.RootModule
[ERROR] Errors in
'jar:file:/C:/Documents%20and%20Settings/seivma/.m2/repository/com/sencha/gxt/gxt/3.0.0-rc2/gxt-3.0.0-rc2.jar!/com/sencha/
eme/blue/client/menu/BlueMenuItemAppearance.java'
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at java.util.jar.Manifest$FastInputStream.<init>(Manifest.java:315)
at java.util.jar.Manifest$FastInputStream.<init>(Manifest.java:310)
at java.util.jar.Manifest.read(Manifest.java:178)
at java.util.jar.Manifest.<init>(Manifest.java:52)
at java.util.jar.JarFile.getManifestFromReference(JarFile.java:167)
at java.util.jar.JarFile.getManifest(JarFile.java:148)
at sun.misc.URLClassPath$JarLoader$2.getManifest(URLClassPath.java:696)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:228)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox$ICompilerRequestorImpl.acceptResult(AbstractCompiler.java:331)
at org.eclipse.jdt.internal.compiler.Compiler.handleInternalException(Compiler.java:587)
at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:498)
at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox$CompilerImpl.compile(AbstractCompiler.java:173)
at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox$CompilerImpl.compile(AbstractCompiler.java:288)



I attached information about XML descriptor for your information.

---------------------
PROJECT USING GWT-CAL
---------------------

<?xml version="1.0" encoding="UTF-8"?>
<module rename-to='GwtCalendar'>
<inherits name='com.google.gwt.user.User' />
<inherits name='com.google.gwt.user.theme.standard.Standard' />
<inherits name='com.bradrydzewski.gwt.calendar.Calendar' />
<inherits name='com.bradrydzewski.gwt.calendar.theme.google.Google' />
<inherits name='com.allen_sauer.gwt.dnd.gwt-dnd' />
<source path='client' />
<source path='shared' />
</module>

----------------------
PROJECT USING GXT
----------------------
<module rename-to='RootModule'>
<inherits name='com.google.gwt.user.User' />
<inherits name='com.google.gwt.user.theme.standard.Standard' />
<inherits name='com.sencha.gxt.ui.GXT'/>
<inherits name='com.sencha.gxt.chart.Chart'/>
<inherits name='com.telvent.galeno.gwt.modules.calendar.GwtCalendar' /> // gwt-cal project importation
<inherits name="com.google.gwt.user.ImageBundle" />
<inherits name="com.google.gwt.resources.Resources" />
<entry-point
class='com.telvent.galeno.gwt.healthCareProfessional.client.RootModule'/>
<source path='client' />
<source path='shared' />
</module>


As you can see I try to import gwt-cal project as a dependency of my GXT project.

----------------
USED VERSIONS
----------------

GWT-CAL:
<dependency>
<groupId>com.bradrydzewski</groupId>
<artifactId>gwt-cal</artifactId>
<version>0.9.3.1</version>
</dependency>

GXT:
<dependency>
<groupId>com.sencha.gxt</groupId>
<artifactId>gxt</artifactId>
<version>3.0.0-rc2</version>
</dependency>
<dependency>
<groupId>com.sencha.gxt</groupId>
<artifactId>gxt-chart</artifactId>
<version>3.0.0-rc2</version>
</dependency>
<dependency>
<groupId>com.sencha.gxt</groupId>
<artifactId>gxt-legacy</artifactId>
<version>3.0.0-rc2</version>
</dependency>

[gishmo]

This looks like you have not enough memory.

Did you try to increase the max memory of your IDE?

[sesar]

Hi

Thanks for you answer.

I know that exception shows a problem about memory "OutOfMemoryError". But I'm not using any IDE to compile the project. I try to build a package using Maven. So I was executing a maven command using windows console, "mvn clean package" over my project.

If I removed the dependency to the project that contains gwt-cal component, the project (gxt) is packaged without problems. So that makes me think in some kind of problem of compatibility.

I have tested in several machines to discard problems about machine performance.

Best regards

[sven]

gishmo is correct here. This is not a bug in GXT, nor in gwt-cal. Your build process is not allowed to use that amount memory it requires. You will need to increase your heap space for your build.

[gishmo]

Have you tried to increase the Java Heap Size by using: -Xmx512M?

@Sven: Did not see your response. Frank

[sesar]

Hi
I have tried this.
set MAVEN_OPTS=-Xms128M -Xmx1536M

If I set 2048 I got an error "could-not-reserve-enough-space-for-object-heap". So I set 1536, this size should be enough for packaging my project. But error still persists. It stays about fifteen minutes in "compiling module" and then compilation aborts showing the error of java heap space. I think there are more problems that a simple memory error. Maybe a cyclical dependency or something like that

Anybody have used gwt-cal component in a project that is using gxt dependencies?

Best regards

[gishmo]

Well, it looks like you need more RAM ... ;-)

[sesar]

I have eight gigas in this machine an Im using Windows 7, so I don't think that was the real problem.

Problem comes when I add these

<inherits name='com.bradrydzewski.gwt.calendar.Calendar' />
<inherits name='com.bradrydzewski.gwt.calendar.theme.google.Google' />
<inherits name='com.allen_sauer.gwt.dnd.gwt-dnd' />

in my gxt project. If I removed these modules , project is packaged properly.

Anybody have used gwt-cal component in a project that is using gxt dependencies?

Did you use it?

Best regards

[gishmo]

It depends on the JVM your are using. If you are using a 32 bit JVM on Windows, your heapsize is limited to something < 2048M or < 1.6 GB.

[sesar]

Hi

Do you really think that 1536M is not enough for packaging a GXT project that is using the gwt-calendar component as dependency??

Best regards