#40 Unknown Protocol:ATP

[Nicole Chiang]

Hi,

I have tried to call an aglet from servlet, but I don't
know why this error will came out:

java.net.MalformedURLException: unknown protocol: atp
at java.net.URL.<init>(URL.java:307)
at java.net.URL.<init>(URL.java:224)
at java.net.URL.<init>(URL.java:243)
at com.ibm.aglet.Ticket.getDestination(Unknown Source)
at com.ibm.maf.atp.MAFAgentSystem_ATPClient.<init>
(Unknown Source)
at com.ibm.maf.atp.Handler.getMAFAgentSystem
(Unknown Source)
at com.ibm.maf.MAFAgentSystem.getMAFAgentSystem
(Unknown Source)
at com.ibm.aglets.MessageBroker.sendMessage
(Unknown Source)
at com.ibm.aglets.AgletRuntime.createAglet(Unknown
Source)
at com.ibm.aglet.system.Aglets.createAglet(Unknown
Source)
at Utama.ClientAgletTemplate.createRemoteAglets
(ClientAgletTemplate.java:86)
at Utama.LoginServlet.doPost(LoginServlet.java:110)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDo
Filter(ApplicationFilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke
(StandardWrapperValve.java:256)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
at
org.apache.catalina.core.StandardContextValve.invoke
(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke
(StandardContext.java:2416)
at org.apache.catalina.core.StandardHostValve.invoke
(StandardHostValve.java:180)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:643)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke
(ErrorDispatcherValve.java:171)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java:172)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke
(StandardEngineValve.java:174)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service
(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:601)
at
org.apache.coyote.http11.Http11Protocol$Http11Connec
tionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:565)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunna
ble.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:484)
java.lang.NullPointerException
at com.ibm.maf.atp.SocketConnection.<init>(Unknown
Source)
at com.ibm.maf.atp.AtpConnectionImpl.connect
(Unknown Source)
at
com.ibm.maf.atp.MAFAgentSystem_ATPClient.send_mess
age_internal0(Unknown Source)
at
com.ibm.maf.atp.MAFAgentSystem_ATPClient.access0
(Unknown Source)
at com.ibm.maf.atp.MAFAgentSystem_ATPClient.run
(Unknown Source)
at java.security.AccessController.doPrivileged(Native
Method)
at
com.ibm.maf.atp.MAFAgentSystem_ATPClient.send_mess
age_internal(Unknown Source)
at
com.ibm.maf.atp.MAFAgentSystem_ATPClient.receive_me
ssage(Unknown Source)
at com.ibm.aglets.MessageBroker.sendMessage
(Unknown Source)
at com.ibm.aglets.AgletRuntime.createAglet(Unknown
Source)
at com.ibm.aglet.system.Aglets.createAglet(Unknown
Source)
at Utama.ClientAgletTemplate.createRemoteAglets
(ClientAgletTemplate.java:86)
at Utama.LoginServlet.doPost(LoginServlet.java:110)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service
(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDo
Filter(ApplicationFilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke
(StandardWrapperValve.java:256)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
at
org.apache.catalina.core.StandardContextValve.invoke
(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke
(StandardContext.java:2416)
at org.apache.catalina.core.StandardHostValve.invoke
(StandardHostValve.java:180)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:643)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke
(ErrorDispatcherValve.java:171)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java:172)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke
(StandardEngineValve.java:174)
at
org.apache.catalina.core.StandardPipeline$StandardPipeli
neValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service
(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:601)
at
org.apache.coyote.http11.Http11Protocol$Http11Connec
tionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:565)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunna
ble.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:484)

Is there anybody know how to solve this problem?
Anyone have some examples on how to call and aglet in
web-based application?