DefaultPackageScanClassResolver can't read entries in an eclipse rcp app
because it can't handle bundleresource - protocol
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Key: CAMEL-2663
URL: https://issues.apache.org/activemq/browse/CAMEL-2663
Project: Apache Camel
Issue Type: Bug
Components: camel-core
Affects Versions: 2.2.0
Environment: Windows, Eclipse 3.5.2
Reporter: Christoph Dittberner
scenario:
I have an eclipse rcp based app and use the apache camel libs within my plugin,
i.e. the libs are one classpath of the plugin. I use a route using camel-mail
to process some mailqueues.
CamelContext context = new DefaultCamelContext();
context.addRoutes(new RouteBuilder() {
public void configure() {
from("imaps://mailserver?username=user&password=password&consumer.delay=5000&delete=false&unseen=true")
.to("log: new mail");
}});
context.start();
When I start my app all seems to be ok. But in my log I get a lot of error
messages regarding the loading of converters. If I ask my context to find a
converter f.i. to converty to byte[] form inputstream (as I did see in another
mail example reagding attachments) I get null because the context can't find
one.
I debugged deeper into the camel code and it seems that the
DefaultPackageScanClassResolver can't load from urls starting with
bundleresource like
"bundleresource://109.fwk32380043:4/org/apache/camel/component/file/"
using camel-osgi didn't worked because all camel libs are loaded as inner libs
of my single plugin and not as plugins. (loading as plugins didn't worked but
thats another problem/bug)
LOG Messages:
2010-04-21 11:15:34,829 DEBUG
org.apache.camel.impl.converter.DefaultTypeConverter loadTypeConverters -
Loading type converters ...
2010-04-21 11:15:34,829 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver findAnnotated - Searching
for annotations of org.apache.camel.Converter in packages:
[org.apache.camel.component.file, org.apache.camel.component.bean,
org.apache.camel.converter, org.apache.camel.component.mail,
org.apache.camel.component.spring.integration.converter]
2010-04-21 11:15:34,829 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver getClassLoaders - The
thread context class loader:
org.eclipse.core.runtime.internal.adaptor.contextfin...@1a76eff is used to
load the class
2010-04-21 11:15:34,829 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver find - Searching for:
annotated with @Converter in package: org/apache/camel/component/file using
classloader: org.eclipse.core.runtime.internal.adaptor.ContextFinder
2010-04-21 11:15:39,954 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver getResources - Getting
resource URL for package: org/apache/camel/component/file with classloader:
org.eclipse.core.runtime.internal.adaptor.contextfin...@1a76eff
2010-04-21 11:16:44,970 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver find - URL from
classloader: bundleresource://109.fwk32380043:4/org/apache/camel/component/file/
2010-04-21 11:17:01,642 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver find - Decoded urlPath:
/org/apache/camel/component/file/ with protocol: bundleresource
2010-04-21 11:23:59,814 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver find - isLocalFileSystem:
false
2010-04-21 11:24:00,470 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver find - Scanning for
classes in [/org/apache/camel/component/file/] matching criteria: annotated
with @Converter
2010-04-21 11:24:16,079 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver find - Loading from jar
using http/https: /org/apache/camel/component/file/
2010-04-21 11:24:26,626 DEBUG
org.apache.camel.impl.DefaultPackageScanClassResolver find - Cannot read
entries in url:
bundleresource://109.fwk32380043:4/org/apache/camel/component/file/
java.net.MalformedURLException: no protocol: /org/apache/camel/component/file/
at java.net.URL.<init>(URL.java:567)
at java.net.URL.<init>(URL.java:464)
at java.net.URL.<init>(URL.java:413)
at
org.apache.camel.impl.DefaultPackageScanClassResolver.find(DefaultPackageScanClassResolver.java:264)
at
org.apache.camel.impl.DefaultPackageScanClassResolver.find(DefaultPackageScanClassResolver.java:180)
at
org.apache.camel.impl.DefaultPackageScanClassResolver.findAnnotated(DefaultPackageScanClassResolver.java:100)
at
org.apache.camel.impl.converter.AnnotationTypeConverterLoader.load(AnnotationTypeConverterLoader.java:63)
at
org.apache.camel.impl.converter.DefaultTypeConverter.loadTypeConverters(DefaultTypeConverter.java:361)
at
org.apache.camel.impl.converter.DefaultTypeConverter.doStart(DefaultTypeConverter.java:384)
at org.apache.camel.impl.ServiceSupport.start(ServiceSupport.java:53)
at
org.apache.camel.util.ServiceHelper.startService(ServiceHelper.java:49)
at
org.apache.camel.impl.DefaultCamelContext.startServices(DefaultCamelContext.java:1174)
at
org.apache.camel.impl.DefaultCamelContext.addService(DefaultCamelContext.java:644)
at
org.apache.camel.impl.DefaultCamelContext.getTypeConverter(DefaultCamelContext.java:691)
at
org.apache.camel.util.CamelContextHelper.convertTo(CamelContextHelper.java:68)
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