Pawan Mundhra created CAMEL-16243:
-------------------------------------
Summary: camel-restlet : Compatibility issue of camel-restlet with
camel-api library resulting in e
"NoSuchMethodError:org.apache.camel.CamelContext.getRestConfiguration(Ljava/lang/String;Z)Lorg/apache/camel/spi/RestConfiguration"
in RestletComponent class
Key: CAMEL-16243
URL: https://issues.apache.org/jira/browse/CAMEL-16243
Project: Camel
Issue Type: Bug
Components: camel-restlet
Environment: Open JDK 11.0.2
Reporter: Pawan Mundhra
Fix For: 3.x
Recently we upgraded our Application's overall camel version from 2.16.0 to
3.4.4
One of the component we used in our Application was camel-restlet component
(version 2.16.0).
Issue #1 : It seems camel removed the restlet component after 3.x. Could not
find much documentation which would let us know how to migrate the existing
camel-restlet component
Issue #2 : We gave a try to upgrade the camel-restlet component to 3.0.0-RC2.
But during start-up of our service, we faced an error as mentioned in the below
stack trace.
{code:java}
Exception in thread "main" java.lang.NoSuchMethodError:
org.apache.camel.CamelContext.getRestConfiguration(Ljava/lang/String;Z)Lorg/apache/camel/spi/RestConfiguration;
at
org.apache.camel.component.restlet.RestletComponent.doStart(RestletComponent.java:215)
at
org.apache.camel.support.service.BaseService.start(BaseService.java:115)
at
org.apache.camel.impl.engine.AbstractCamelContext.startService(AbstractCamelContext.java:3026)
at
org.apache.camel.impl.engine.AbstractCamelContext.startServices(AbstractCamelContext.java:3032)
at
org.apache.camel.impl.engine.AbstractCamelContext.doStartCamel(AbstractCamelContext.java:2759)
at
org.apache.camel.impl.engine.AbstractCamelContext.doStartContext(AbstractCamelContext.java:2658)
at
org.apache.camel.impl.engine.AbstractCamelContext.doStart(AbstractCamelContext.java:2621)
at
org.apache.camel.support.service.BaseService.start(BaseService.java:115)
at
org.apache.camel.impl.engine.AbstractCamelContext.start(AbstractCamelContext.java:2453)
at
com.nri.csd.inf.console.service.GatewayService.startCamelContextIfNotStarted(GatewayService.java:201)
at
com.nri.csd.inf.console.service.GatewayService.postStart(GatewayService.java:100)
at
com.nri.csd.inf.console.service.AbstractLaunchableService.start(AbstractLaunchableService.java:216)
at com.nri.csd.inf.console.ConsoleLauncher.main(ConsoleLauncher.java:96)
{code}
Found in the code that RestletComponent java class in camel-restlet-3.0.0-RC2
version has an API doStart() in which at line 215, there is a call to
CamelContext class's method getRestConfiguration("restlet", true) (clas sin
camel-api jar). This API seems to be removed by Camel during upgradation of
camel-api to 3.2 from 3.1.
Refer this
[https://camel.apache.org/manual/latest/camel-3x-upgrade-guide-3_2.html]
It seems that there is incompatibility with camel-restlet 3.0.0-RC2 along with
Camel 3.2 and above.
One solution I can think of is revert the downgrade the Camel version to 3.1
instead of 3.4 which we would like to avoid.
Please suggest what course of action can be taken for this issue with minimum
impact or what is the compatibility of camel-restlet and other camel components.
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