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Posted to issues@camel.apache.org by "Carsten Erker (JIRA)" <ji...@apache.org> on 2015/03/17 12:10:38 UTC
[jira] [Updated] (CAMEL-8500) ClassCastException when something
other than PropertiesComponent is bound to "properties" JNDI name
[ https://issues.apache.org/jira/browse/CAMEL-8500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Carsten Erker updated CAMEL-8500:
---------------------------------
Description:
Problem:
When starting the DefaultCamelContext, Camel tries to get a PropertiesComponent object from JNDI under the name "properties" (which is hard-coded in DefaultCamelContext.lookupPropertiesComponent() resp. CamelContextHelper.lookupPropertiesComponent() in newer Camel versions).
During start we get the following Error:
{code}
org.apache.camel.NoSuchBeanException: Found bean: properties in JNDI Context: javax.naming.InitialContext@a37a18 of type: org.jnp.interfaces.NamingContext expected type was: class org.apache.camel.component.properties.PropertiesComponent
at org.apache.camel.impl.JndiRegistry.lookupByNameAndType(JndiRegistry.java:61)
at org.apache.camel.impl.PropertyPlaceholderDelegateRegistry.lookupByNameAndType(PropertyPlaceholderDelegateRegistry.java:63)
at org.apache.camel.impl.DefaultCamelContext.lookupPropertiesComponent(DefaultCamelContext.java:2788)
at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1834)
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1716)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1684)
at de.bwb.ubi.vs.automat.mbean.CamelStarter.startService(CamelStarter.java:21)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
[...]
Caused by: java.lang.ClassCastException
at java.lang.Class.cast(Class.java:2999)
at org.apache.camel.impl.JndiRegistry.lookupByNameAndType(JndiRegistry.java:57)
... 145 more
{code}
Reason:
Our application bind some properties to the name "properties/..." in the JNDI global namespace.
*Proposed Solution*
Camel can manage if it finds nothing under the JNDI name, the problem is just finding something different than the expected PropertiesComponent instance. Instead of calling JndiRegistry.lookupByNameAndType(String, Class) -- this is where the cast fails -- we should call JndiRegistry.lookupByName(String name). If an instance other than a PropertiesComponent is returned here, we should go on as if nothing was found in the JNDI lookup.
I can provide a pull request for this.
was:
Problem:
When starting the DefaultCamelContext, Camel tries to get a PropertiesComponent object from JNDI under the name "properties" (which is hard-coded in DefaultCamelContext.lookupPropertiesComponent() resp. CamelContextHelper.lookupPropertiesComponent() in newer Camel versions).
During start we get the following Error:
{code}
org.apache.camel.NoSuchBeanException: Found bean: properties in JNDI Context: javax.naming.InitialContext@a37a18 of type: org.jnp.interfaces.NamingContext expected type was: class org.apache.camel.component.properties.PropertiesComponent
at org.apache.camel.impl.JndiRegistry.lookupByNameAndType(JndiRegistry.java:61)
at org.apache.camel.impl.PropertyPlaceholderDelegateRegistry.lookupByNameAndType(PropertyPlaceholderDelegateRegistry.java:63)
at org.apache.camel.impl.DefaultCamelContext.lookupPropertiesComponent(DefaultCamelContext.java:2788)
at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1834)
at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1716)
at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1684)
at de.bwb.ubi.vs.automat.mbean.CamelStarter.startService(CamelStarter.java:21)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
[...]
Caused by: java.lang.ClassCastException
at java.lang.Class.cast(Class.java:2999)
at org.apache.camel.impl.JndiRegistry.lookupByNameAndType(JndiRegistry.java:57)
... 145 more
{code}
*Reason:*
Our application bind some properties to the name "properties/..." in the JNDI global namespace.
*Proposed Solution*
Camel can manage if it finds nothing under the JNDI name, the problem is just finding something different than the expected PropertiesComponent instance. Instead of calling JndiRegistry.lookupByNameAndType(String, Class) -- this is where the cast fails -- we should call JndiRegistry.lookupByName(String name). If an instance other than a PropertiesComponent is returned here, we should go on as if nothing was found in the JNDI lookup.
I can provide a pull request for this.
> ClassCastException when something other than PropertiesComponent is bound to "properties" JNDI name
> ---------------------------------------------------------------------------------------------------
>
> Key: CAMEL-8500
> URL: https://issues.apache.org/jira/browse/CAMEL-8500
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 2.13.4
> Environment: Apache Camel 2.13.4 running on JBoss EAP4
> Reporter: Carsten Erker
> Labels: easyfix
>
> Problem:
> When starting the DefaultCamelContext, Camel tries to get a PropertiesComponent object from JNDI under the name "properties" (which is hard-coded in DefaultCamelContext.lookupPropertiesComponent() resp. CamelContextHelper.lookupPropertiesComponent() in newer Camel versions).
> During start we get the following Error:
> {code}
> org.apache.camel.NoSuchBeanException: Found bean: properties in JNDI Context: javax.naming.InitialContext@a37a18 of type: org.jnp.interfaces.NamingContext expected type was: class org.apache.camel.component.properties.PropertiesComponent
> at org.apache.camel.impl.JndiRegistry.lookupByNameAndType(JndiRegistry.java:61)
> at org.apache.camel.impl.PropertyPlaceholderDelegateRegistry.lookupByNameAndType(PropertyPlaceholderDelegateRegistry.java:63)
> at org.apache.camel.impl.DefaultCamelContext.lookupPropertiesComponent(DefaultCamelContext.java:2788)
> at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:1834)
> at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:1716)
> at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
> at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:1684)
> at de.bwb.ubi.vs.automat.mbean.CamelStarter.startService(CamelStarter.java:21)
> at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
> [...]
> Caused by: java.lang.ClassCastException
> at java.lang.Class.cast(Class.java:2999)
> at org.apache.camel.impl.JndiRegistry.lookupByNameAndType(JndiRegistry.java:57)
> ... 145 more
> {code}
> Reason:
> Our application bind some properties to the name "properties/..." in the JNDI global namespace.
> *Proposed Solution*
> Camel can manage if it finds nothing under the JNDI name, the problem is just finding something different than the expected PropertiesComponent instance. Instead of calling JndiRegistry.lookupByNameAndType(String, Class) -- this is where the cast fails -- we should call JndiRegistry.lookupByName(String name). If an instance other than a PropertiesComponent is returned here, we should go on as if nothing was found in the JNDI lookup.
> I can provide a pull request for this.
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