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From "Roman Minko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ARIES-932) Extention proxy-method="classes" caused UnableToProxyException
Date Wed, 03 Oct 2012 13:08:19 GMT
Roman Minko created ARIES-932:
---------------------------------

             Summary: Extention proxy-method="classes" caused UnableToProxyException
                 Key: ARIES-932
                 URL: https://issues.apache.org/jira/browse/ARIES-932
             Project: Aries
          Issue Type: Bug
          Components: Blueprint, Proxy
         Environment: Karaf 2.3.0 with ASM 4.0 and Aries 1.0.0
            Reporter: Roman Minko


UnableToProxyException arises with Karaf 2.3.0/Aries 1.0.0 when install a blueprint based
bundle into container.

Caused by: org.apache.aries.proxy.UnableToProxyException: The class xxx.xxx.SomeClass is not
an interface and therefore a proxy cannot be generated.
         at org.apache.aries.proxy.impl.JdkProxyManager.getInterfaces(JdkProxyManager.java:43)
         at org.apache.aries.proxy.impl.JdkProxyManager.createNewProxy(JdkProxyManager.java:36)
         at org.apache.aries.proxy.impl.AbstractProxyManager.createDelegatingInterceptingProxy(AbstractProxyManager.java:75)
         at org.apache.aries.proxy.impl.AbstractProxyManager.createDelegatingProxy(AbstractProxyManager.java:40)
         at org.apache.aries.blueprint.container.AbstractServiceReferenceRecipe.createProxy(AbstractServiceReferenceRecipe.java:299)
         at org.apache.aries.blueprint.container.ReferenceRecipe.internalCreate(ReferenceRecipe.java:102)
         ... 56 more


The blueprint configuration in the bundle:
 <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0">
 ...
 <reference
 xmlns:ext="http://aries.apache.org/blueprint/xmlns/blueprint-ext/v1.0.0"
 ext:proxy-method="classes" id="SomeFeature" interface="xxx.xxx.SomeClass"/>
 ...
 </blueprint>

 The stack shows that the JDK proxy (JdkProxyManager) used instead of AsmProxyManager,
 even though ASM 4.0 installed in container:
 
 karaf@admin> exports | grep asm
   107 org.springframework.asm; version="3.0.7.RELEASE"
   107 org.springframework.asm.commons; version="3.0.7.RELEASE"
   107 org.springframework.asm.signature; version="3.0.7.RELEASE"
   113 net.sf.cglib.asm; version="2.2.2"
   113 net.sf.cglib.asm.signature; version="2.2.2"
   212 org.objectweb.asm; version="4.0.0"
   212 org.objectweb.asm.signature; version="4.0.0"
   212 org.objectweb.asm.commons; version="4.0.0"
   212 org.objectweb.asm.tree; version="4.0.0"
   212 org.objectweb.asm.tree.analysis; version="4.0.0"
   212 org.objectweb.asm.util; version="4.0.0"
   212 org.objectweb.asm.xml; version="4.0.0"


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