I'm having the exact same problem and I checked that it's not there twice...
weird...
Uli
Joachim Van der Auwera schrieb:
I assume slf4j is on the classpath twice...
Thiago HP wrote:
Hi!
I'm having a very strange exception when trying to run a T5
application (www.arsmachina.com.br/project/example):
Error obtaining injected value for field
org.apache.tapestry5.corelib.components.Form.logger:
java.lang.ClassNotFoundException: org.slf4j.Logger
It seems to be a Tapestry classloading issue, as slf4j-api *is* in the
classpath.
At my home, when running from JettyLauncher (modified to run under
Java 6), runs OK. Under Run-Jetty-Run, the exception is thrown.
Running an embedded Jetty at my home, ok, at my work, exception
raised.
Thanks in advance.
Full stack trace:
java.lang.RuntimeException: java.lang.ClassNotFoundException: caught
an exception while obtaining a class file for
org.apache.tapestry5.corelib.components.Form
at
org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl.findClass(ComponentInstantiatorSourceImpl.java:296)
at
org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl.findInstantiator(ComponentInstantiatorSourceImpl.java:272)
at
$ComponentInstantiatorSource_11ed4d10948.findInstantiator($ComponentInstantiatorSource_11ed4d10948.java)
at
org.apache.tapestry5.internal.services.PageElementFactoryImpl.newComponentElement(PageElementFactoryImpl.java:216)
... 144 more
Caused by: java.lang.ClassNotFoundException: caught an exception while
obtaining a class file for
org.apache.tapestry5.corelib.components.Form
at javassist.Loader.findClass(Loader.java:359)
at
org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl$PackageAwareLoader.findClass(ComponentInstantiatorSourceImpl.java:92)
at javassist.Loader.loadClass(Loader.java:311)
at java.lang.ClassLoader.loadClass(Unknown Source)
at
org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl.findClass(ComponentInstantiatorSourceImpl.java:292)
... 147 more
Caused by:
org.apache.tapestry5.internal.services.TransformationException:
Error obtaining injected value for field
org.apache.tapestry5.corelib.components.Form.logger:
java.lang.ClassNotFoundException: org.slf4j.Logger
at
org.apache.tapestry5.internal.services.ComponentClassTransformerImpl.transformComponentClass(ComponentClassTransformerImpl.java:176)
at
$ComponentClassTransformer_11ed4d10954.transformComponentClass($ComponentClassTransformer_11ed4d10954.java)
at
org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl.onLoad(ComponentInstantiatorSourceImpl.java:201)
at javassist.Loader.findClass(Loader.java:340)
... 151 more
Caused by: java.lang.RuntimeException: Error obtaining injected value
for field org.apache.tapestry5.corelib.components.Form.logger:
java.lang.ClassNotFoundException: org.slf4j.Logger
at
org.apache.tapestry5.internal.transform.InjectWorker.transform(InjectWorker.java:68)
at
$ComponentClassTransformWorker_11ed4d109a4.transform($ComponentClassTransformWorker_11ed4d109a4.java)
at
$ComponentClassTransformWorker_11ed4d1099a.transform($ComponentClassTransformWorker_11ed4d1099a.java)
at
org.apache.tapestry5.internal.services.ComponentClassTransformerImpl.transformComponentClass(ComponentClassTransformerImpl.java:170)
... 154 more
Caused by: java.lang.RuntimeException:
java.lang.ClassNotFoundException: org.slf4j.Logger
at
org.apache.tapestry5.internal.services.InternalClassTransformationImpl.toClass(InternalClassTransformationImpl.java:1765)
at
org.apache.tapestry5.internal.transform.InjectWorker.transform(InjectWorker.java:55)
... 157 more
Caused by: java.lang.ClassNotFoundException: org.slf4j.Logger
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at javassist.Loader.delegateToParent(Loader.java:428)
at javassist.Loader.loadClass(Loader.java:314)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at
org.apache.tapestry5.internal.services.InternalClassTransformationImpl.toClass(InternalClassTransformationImpl.java:1761)
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