Hi Rice,
yep, I noticed that too, jetty6:run builds the classpath reading from
the pom.xml, but actually this should not be "important", because this
classpath is then reloaded by the cocoon classloader which is a
child-first, so falls back on the jetty6:run created classpath only if
it cannot find a class.
I'm currently loading some beans with spring from different jars and not
having this problem, as long as all classes are there. Problems arise
when you try to use JRE classes or other shared libraries not loaded by
the cocoon classloader.
You should check the classloader of xs.school.Platform, this is because
when you declare a method, say doSomethingWith(MyObject o) in class
MyClass, argument and return classes are resolved on the current class
classloader, so the method will be
doSomethingWith(MyObject-LoadedByMyClassClassloader o), and it will
complain if you try to invoke
MyClass.doSomethingWith(MyObject-LoadedFromAnotherClassloader). Is
xs.school.Platform in WEB-INF/cocoon/lib as well? Loaded by the cocoon
classloader?
How do you discovered which classloader was loading a certain class? I'm
asking because i noticed that Eclipse is a bit buggy in these field. The
best way I've found so far is to put a static block printing out "Class
X loaded by XXX".
Hope this helps,
Simone
Rice Yeh wrote:
Seems jetty6:run will automatically add all dependences in pom.xml to
WEB-INF/lib. I get the following information by passing -X to mvn command.
[INFO] Context path = /
[DEBUG] Adding artifact hibernate-3.2.0.cr2.jar for WEB-INF/lib
[DEBUG] Adding artifact jakarta-bcel-20040329.jar for WEB-INF/lib
[DEBUG] Adding artifact excalibur-logger-2.1.jar for WEB-INF/lib
[DEBUG] Adding artifact commons-logging-1.0.4.jar for WEB-INF/lib
[DEBUG] Adding artifact xs-persistence-hibernate-1.0-SNAPSHOT.jar for
WEB-INF/lib
....
On 9/20/06, *Rice Yeh* < [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
wrote:
Hi,
I have a bean created thru. springframeowrk in cocoon. The bean
needs 3 arguments in its contructor to create it as below:
<bean id="platform" class="xs.school.Platform" scope="singleton">
<constructor-arg type="java.lang.String" value="development"/>
<constructor-arg type="xs.persistence.Adapter"
ref="persistenceAdapter"/>
<constructor-arg type=" java.util.Locale"><util:constant
static-field="java.util.Locale.TAIWAN"/></constructor-arg>
</bean>
<bean id="persistenceAdapter"
class="xs.selection.HibernateAdapter ">
<property name="settings" value="hibernate.cfg.xml"/>
</bean>
I find xs.persistence.Adapter 's (which is an interface)
classloader is WebAppClassLoader. The real adapter implemenation
is called HibernateAdapter whose classloader is
DefaultClassLoader. So a ClassCastException is thrown when
assigning the instance of HibernateAdapter (which implements
Adapter, surely) to the second argument shown beflow. Adapter and
HibernateAdapter are in two different jars but both are in
WEB-INF/cocoon/lib. Should not all classes in jars under
WEB-INF/cocoon/lib loaded by the same classloader
(DefaultClassLoader)?
Caused by:
org.springframework.beans.factory.UnsatisfiedDependencyException: Err
or creating bean with name 'platform' defined in URL
[file:C:/tmp/cocoon/xs-scho
ol-cocoon/src/main/resources/META-INF/spring/application.xml]:
Unsatisfied depen
dency expressed through constructor argument with index 1 of type
[xs.persistenc
e.Adapter]: Could not convert constructor argument value
[xs.selection.Hibernate
[EMAIL PROTECTED] to required type [xs.persistence.Adapter ]: Failed
to convert val
ue of type [xs.selection.HibernateAdapter] to required type
[xs.persistence.Adap
ter]; nested exception is java.lang.IllegalArgumentException: No
matching editor
s or conversion strategy found
at
org.springframework.beans.factory.support.ConstructorResolver.createA
rgumentArray(ConstructorResolver.java:375)
at
org.springframework.beans.factory.support.ConstructorResolver.autowir
eConstructor( ConstructorResolver.java:126)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBean
Factory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:548)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBean
Factory.createBean(AbstractAutowireCapableBeanFactory.java:352)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getOb
ject(AbstractBeanFactory.java:240)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistr
y.getSingleton(DefaultSingletonBeanRegistry.java:132)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean
(AbstractBeanFactory.java:237)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean
(AbstractBeanFactory.java:153)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.
preInstantiateSingletons(DefaultListableBeanFactory.java:254)
at
org.springframework.context.support.AbstractApplicationContext.refres
h(AbstractApplicationContext.java:337)
at
org.springframework.web.context.support.AbstractRefreshableWebApplica
tionContext.refresh(AbstractRefreshableWebApplicationContext.java:156)
at
org.springframework.web.context.ContextLoader.createWebApplicationCon
text(ContextLoader.java:246)
at
org.springframework.web.context.ContextLoader.initWebApplicationConte
xt(ContextLoader.java:184)
at
org.springframework.web.context.ContextLoaderListener.contextInitiali
zed(ContextLoaderListener.java:49)
at
org.apache.cocoon.bootstrap.servlet.ShieldingListener.invoke(Shieldin
gListener.java:151)
... 32 more
Rice
