RE: classloader limitations

> -----Original Message-----
> From: Peter Donald [mailto:peter@xxxxxxxxxx]
> Sent: Friday, October 25, 2002 2:38 PM
> To: Avalon-Phoenix Developers List
> Subject: Re: classloader limitations
>
>
> On Fri, 25 Oct 2002 11:49, Jim Alateras wrote:
> > Are there any classloader limitations that prevent the SAR
> classloader from
> > referencing jars in the dist/lib directory.
>
> should not be.
>
> > Under some circumstances one of
> > my blocks throws a class not found exception even though the
> relevant JAR
> > is in the dist/lib directory. Currently, to resolve the problem
> I need to
> > package the JAR within the SAR.
>
> In this case make sure that all the jar placed in dist/lib (lets
> say foo.jar)
> is completely resolvable from dist/lib. However if foo.jar also
> depends upon
> baz.jar which is either an extension (and stored in dist/ext) or
> stored as
> library in SAR-INF/lib then foo.jar will not be able to be
> resolved as it can
> not see all the classes that it uses.
>
> If this is not the case then can you describe the situation in
> more detail and
> hopefully we will be able to figure out whats going on.

I have a block in my SAR which attempts to loads a class in a JAR stored in
dist\ext and i get this error

java.lang.ClassNotFoundException: connectors.mbox.MboxFileSystemConnector
        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
org.apache.avalon.phoenix.components.classloader.PolicyClassLoader.findClass
(PolicyClassLoader.java:98)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
        at
connector.DefaultConnectorManager.createConnector(DefaultConnectorManager.ja
va:276)
        at
connector.DefaultConnectorManager.initialize(DefaultConnectorManager.java:15
9)
        at
org.apache.avalon.framework.container.ContainerUtil.initialize(ContainerUtil
.java:235)
        at
org.apache.excalibur.containerkit.lifecycle.LifecycleHelper.startup(Lifecycl
eHelper.java:144)
        at
org.apache.avalon.phoenix.components.application.DefaultApplication.startup(
DefaultApplication.java:480)
        at
org.apache.avalon.phoenix.components.application.DefaultApplication.doRunPha
se(DefaultApplication.java:428)
        at
org.apache.avalon.phoenix.components.application.DefaultApplication.runPhase
(DefaultApplication.java:364)
        at
org.apache.avalon.phoenix.components.application.DefaultApplication.start(De
faultApplication.java:138)
        at
org.apache.avalon.framework.container.ContainerUtil.start(ContainerUtil.java
:251)
        at
org.apache.avalon.phoenix.components.kernel.DefaultKernel.startup(DefaultKer
nel.java:178)
        at
org.apache.avalon.phoenix.components.kernel.DefaultKernel.addApplication(Def
aultKernel.java:254)
        at
org.apache.avalon.phoenix.components.deployer.DefaultDeployer.deploy(Default
Deployer.java:340)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployFile(Def
aultEmbeddor.java:498)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployFile(Def
aultEmbeddor.java:491)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployFiles(De
faultEmbeddor.java:476)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployDefaultA
pplications(DefaultEmbeddor.java:466)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.execute(Defaul
tEmbeddor.java:224)
        at org.apache.avalon.phoenix.frontends.CLIMain.run(CLIMain.java:158)
        at
org.apache.avalon.phoenix.frontends.CLIMain.execute(CLIMain.java:144)
        at
org.apache.avalon.phoenix.frontends.CLIMain.main(CLIMain.java:102)
        at java.lang.reflect.Method.invoke(Native Method)
        at org.apache.avalon.phoenix.launcher.Main.startup(Main.java:94)
        at org.apache.avalon.phoenix.launcher.Main.main(Main.java:46)
rethrown as connector.SMSConnectorException: Failed to create the connector
connectors.mbox.MboxFileSystem
Connector: connectors.mbox.MboxFileSystemConnector
        at
connector.DefaultConnectorManager.createConnector(DefaultConnectorManager.ja
va:290)
        at
connector.DefaultConnectorManager.initialize(DefaultConnectorManager.java:15
9)
        at
org.apache.avalon.framework.container.ContainerUtil.initialize(ContainerUtil
.java:235)
        at
org.apache.excalibur.containerkit.lifecycle.LifecycleHelper.startup(Lifecycl
eHelper.java:144)
        at
org.apache.avalon.phoenix.components.application.DefaultApplication.startup(
DefaultApplication.java:480)
        at
org.apache.avalon.phoenix.components.application.DefaultApplication.doRunPha
se(DefaultApplication.java:428)
        at
org.apache.avalon.phoenix.components.application.DefaultApplication.runPhase
(DefaultApplication.java:364)
        at
org.apache.avalon.phoenix.components.application.DefaultApplication.start(De
faultApplication.java:138)
        at
org.apache.avalon.framework.container.ContainerUtil.start(ContainerUtil.java
:251)
        at
org.apache.avalon.phoenix.components.kernel.DefaultKernel.startup(DefaultKer
nel.java:178)
        at
org.apache.avalon.phoenix.components.kernel.DefaultKernel.addApplication(Def
aultKernel.java:254)
        at
org.apache.avalon.phoenix.components.deployer.DefaultDeployer.deploy(Default
Deployer.java:340)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployFile(Def
aultEmbeddor.java:498)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployFile(Def
aultEmbeddor.java:491)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployFiles(De
faultEmbeddor.java:476)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployDefaultA
pplications(DefaultEmbeddor.java:466)
        at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.execute(Defaul
tEmbeddor.java:224)
        at org.apache.avalon.phoenix.frontends.CLIMain.run(CLIMain.java:158)
        at
org.apache.avalon.phoenix.frontends.CLIMain.execute(CLIMain.java:144)
        at
org.apache.avalon.phoenix.frontends.CLIMain.main(CLIMain.java:102)
        at java.lang.reflect.Method.invoke(Native Method)
        at org.apache.avalon.phoenix.launcher.Main.startup(Main.java:94)
        at org.apache.avalon.phoenix.launcher.Main.main(Main.java:46)