Github user astroshim commented on the pull request:

    https://github.com/apache/incubator-zeppelin/pull/908#issuecomment-220874760
  
    I tested this funtionality but I got failed.
    
    [My test process]
    1. I removed ```interpreter/md``` path 
    2. start zeppelin server
    3. request following curl command 
    ```
    curl -H "Content-Type: application/json"  -XPOST 
"http://127.0.0.1:8080/api/interpreter/load/md/markdown"; -d '{
      "artifact": 
"org.apache.zeppelin:zeppelin-markdown:0.6.0-incubating-SNAPSHOT",
      "className": "org.apache.zeppelin.markdown.Markdown",
      "repository": {
        "url": "http://dl.bintray.com/spark-packages/maven";,
        "snapshot" : true
      }
    }'
    ```
    
    but I got an exception and md is not loaded. 
    The exception is following
    ```
    ERROR [2016-05-23 11:16:52,948] ({qtp1148546316-14} 
InterpreterFactory.java[loadDynamicInterpreter]:146) - Failed load dynamic 
interpreter : 
    org.sonatype.aether.resolution.DependencyResolutionException: Could not 
find artifact 
org.apache.zeppelin:zeppelin-markdown:jar:0.6.0-incubating-SNAPSHOT in central 
(http://repo1.maven.org/maven2/)
        at 
org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:375)
        at 
org.apache.zeppelin.dep.DependencyResolver.getArtifactsWithDep(DependencyResolver.java:170)
        at 
org.apache.zeppelin.dep.DependencyResolver.loadFromMvn(DependencyResolver.java:123)
        at 
org.apache.zeppelin.dep.DependencyResolver.load(DependencyResolver.java:81)
        at 
org.apache.zeppelin.dep.DependencyResolver.load(DependencyResolver.java:94)
        at 
org.apache.zeppelin.dep.DependencyResolver.load(DependencyResolver.java:68)
        at 
org.apache.zeppelin.interpreter.InterpreterFactory.loadDynamicInterpreter(InterpreterFactory.java:143)
        at 
org.apache.zeppelin.rest.InterpreterRestApi.loadDynamicInterpreter(InterpreterRestApi.java:265)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:180)
        at 
org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:96)
        at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:192)
        at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:100)
        at 
org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:57)
        at 
org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:93)
        at 
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
        at 
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
        at 
org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:239)
        at 
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:248)
        at 
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:222)
        at 
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:153)
        at 
org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:167)
        at 
org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:286)
        at 
org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:206)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
        at 
org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:262)
        at 
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
        at 
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
        at 
org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
        at 
org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
        at 
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
        at 
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
        at 
org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
        at 
org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
        at 
org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
        at 
org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
        at 
org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
        at 
org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
        at 
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at org.apache.zeppelin.server.CorsFilter.doFilter(CorsFilter.java:72)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
        at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at 
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
        at org.eclipse.jetty.server.Server.handle(Server.java:499)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
        at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
        at 
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
        at java.lang.Thread.run(Thread.java:745)
    Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: 
Could not find artifact 
org.apache.zeppelin:zeppelin-markdown:jar:0.6.0-incubating-SNAPSHOT in central 
(http://repo1.maven.org/maven2/)
        at 
org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:537)
        at 
org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:216)
        at 
org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:358)
        ... 63 more
    Caused by: org.sonatype.aether.transfer.ArtifactNotFoundException: Could 
not find artifact 
org.apache.zeppelin:zeppelin-markdown:jar:0.6.0-incubating-SNAPSHOT in central 
(http://repo1.maven.org/maven2/)
        at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:971)
        at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:966)
        at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.flush(WagonRepositoryConnector.java:707)
        at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.flush(WagonRepositoryConnector.java:701)
        at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector.get(WagonRepositoryConnector.java:452)
        at 
org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:456)
        ... 65 more
    ```
    
    Did i something wrong?


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