DUBBO-615: 实现基本功能，并能够运行demo

dubbo-common/src/main/java/com/alibaba/dubbo/common/bytecode/ClassGenerator.java

@@ -335,7 +335,8 @@ public Class<?> toClass()
 					}
 				}
 			}
-			return mCtc.toClass(ClassHelper.getCallerClassLoader(getClass()), null);
+			// mPool.getClassloader() 能够得到正确的classloader.
+			return mCtc.toClass(null, null);
 		}
 		catch(RuntimeException e)
 		{

dubbo-common/src/main/java/com/alibaba/dubbo/common/bytecode/Proxy.java

@@ -64,7 +64,14 @@ public abstract class Proxy
 	 */
 	public static Proxy getProxy(Class<?>... ics)
 	{
-		return getProxy(ClassHelper.getCallerClassLoader(Proxy.class), ics);
+		if(null == ics || ics.length == 0) // 貌似这种情况应该不会出现吧？先加上再说，以防万一。
+			return getProxy(ClassHelper.getCallerClassLoader(Proxy.class), ics);
+
+		// 按照我的理解，Proxy是用在根据dubbo:reference创建接口代理的。那么按照OSGi blurprint的定义，这里应该使用当前定义dubbo:reference的bundle作为类加载器。
+		// 因为只有这个bundle才能正确的找到所有必须的接口类。
+		// 另外dubbo应该还不支持在一个dubbo:reference中定义多个接口吧？
+		return getProxy(ClassHelper.getCallerClassLoader(ics[0]), ics);
+
 	}
 
 	/**

dubbo-common/src/main/java/com/alibaba/dubbo/common/bytecode/Wrapper.java

@@ -207,7 +207,9 @@ private static Wrapper makeWrapper(Class<?> c)
 			throw new IllegalArgumentException("Can not create wrapper for primitive type: " + c);
 
 		String name = c.getName();
-		ClassLoader cl = ClassHelper.getCallerClassLoader(Wrapper.class);
+		// 在OSGi环境下通过c可以得到当前发布service的bundle的类路径。
+		// 在常规servlet容器里，通过c应该也可以得到正确的类路径。
+		ClassLoader cl = ClassHelper.getCallerClassLoader(c);
 
 		StringBuilder c1 = new StringBuilder("public void setPropertyValue(Object o, String n, Object v){ ");
 		StringBuilder c2 = new StringBuilder("public Object getPropertyValue(Object o, String n){ ");

dubbo/osgi.bnd

@@ -0,0 +1,38 @@
+
+
+Bundle-RequiredExecutionEnvironment: JavaSE-1.6
+
+Export-Package: com.alibaba.dubbo.*;version="${project.version}",\
+ com.alibaba.com.caucho.hessian.*;version="${hessian_lite_version}"
+
+Import-Package: org.apache.commons.logging;version="1.1",\
+ javassist.*;version="[3.15,4.0)",\
+ org.springframework.*;version="[2.5.6,4.0)",\
+ org.jboss.netty.*;version="3.2",\
+ ch.qos.logback.*;version="0.9";resolution:=optional,\
+ com.alibaba.com.caucho.hessian.*;version="[3.2,4.0)";resolution:=optional,\
+ com.alibaba.fastjson.*;version="[1.1,2.0)";resolution:=optional,\
+ com.caucho.hessian.*;version="[4.0,5.0)";resolution:=optional,\
+ com.netflix.curator.*;version="[1.1,2.0)";resolution:=optional,\
+ javax.cache.*;version="0";resolution:=optional,\
+ javax.script.*;version="1.1";resolution:=optional,\
+ javax.servlet.*;version="2.5";resolution:=optional,\
+ javax.sql.*,\
+ javax.tools.*,\
+ javax.validation.*;version="1.0";resolution:=optional,\
+ net.rubyeye.xmemcached.*;version="1.3.6";resolution:=optional,\
+ org.I0Itec.zkclient.*;version="0.1";resolution:=optional,\
+ org.apache.commons.lang,\
+ org.apache.commons.pool.impl,\
+ org.apache.cxf.*;version="[2.6,3.0)";resolution:=optional,\
+ org.apache.http.*;version="0";resolution:=optional,\
+ org.apache.log4j.*;version="[1.2,2.0)";resolution:=optional,\
+ org.apache.mina.*;version="[1.1,2.0)";resolution:=optional,\
+ org.apache.thrift.*;version="0.8";resolution:=optional,\
+ org.apache.zookeeper.*;version="[3.3,4.0)";resolution:=optional,\
+ org.glassfish.grizzly.*;version="[2.1,3.0)";resolution:=optional,\
+ org.mortbay.*;version="6.1";resolution:=optional,\
+ org.slf4j.*;version="[1.6,2.0)";resolution:=optional,\
+ org.w3c.dom,\
+ redis.clients.jedis.*;version="[2.1,3.0)";resolution:=optional,\
+ *

dubbo/pom.xml

@@ -22,7 +22,7 @@
 		<version>2.5.3-SNAPSHOT</version>
 	</parent>
 	<artifactId>dubbo</artifactId>
-	<packaging>jar</packaging>
+	<packaging>bundle</packaging>
 	<name>${project.artifactId}</name>
 	<description>The all in one project of dubbo</description>
 	<properties>
@@ -295,7 +295,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-shade-plugin</artifactId>
-				<version>1.4</version>
+				<version>1.6</version>
 				<executions>
 					<execution>
 						<phase>package</phase>
@@ -475,6 +475,17 @@
 					</execution>
 				</executions>
 			</plugin>
+			<plugin>
+				<groupId>org.apache.felix</groupId>
+				<artifactId>maven-bundle-plugin</artifactId>
+				<version>2.3.7</version>
+				<extensions>true</extensions>
+				<configuration>
+					<instructions>
+						<_include>-osgi.bnd</_include>
+					</instructions>
+				</configuration>
+			</plugin>
 		</plugins>
 	</build>
 </project>