A bug in the JFS tasks sample?

When I try to request the url<https>to reset the storage area,an exception occured,reproduced steadily


org.apache.http.client.ClientProtocolException
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:557)
at com.ibm.team.jfs.app.http.cache.HttpCache.revalidate(HttpCache.java:207)
at com.ibm.team.jfs.app.http.cache.HttpCache.execute(HttpCache.java:118)
at com.ibm.team.jfs.app.http.cache.HttpCache.execute(HttpCache.java:89)
at com.ibm.team.http.client.impl.HttpClientService.internalSend(HttpClientService.java:267)
at com.ibm.team.http.client.impl.HttpClientService.send(HttpClientService.java:186)
at com.ibm.team.jfs.sdk.samples.tasks.utils.OAuthEnabledHttpClient.send(OAuthEnabledHttpClient.java:96)
at com.ibm.team.jfs.sdk.samples.tasks.utils.OAuthEnabledHttpClient.send(OAuthEnabledHttpClient.java:103)
at com.ibm.team.jfs.sdk.samples.tasks.JFSTasksClient.head(JFSTasksClient.java:661)
at com.ibm.team.jfs.sdk.samples.tasks.JFSTasksClient.checkResourceExists(JFSTasksClient.java:666)
at com.ibm.team.jfs.sdk.samples.tasks.utils.ResourceInitializer.initialize(ResourceInitializer.java:46)
at com.ibm.team.jfs.sdk.samples.tasks.utils.ResourceInitializer.reset(ResourceInitializer.java:65)
at com.ibm.team.jfs.sdk.samples.tasks.ResetService.doGet(ResetService.java:30)
at com.ibm.team.jfs.app.servlet.AppContainerServlet.dispatchRequest(AppContainerServlet.java:124)
at com.ibm.team.jfs.app.servlet.AppContainerServlet.service(AppContainerServlet.java:215)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:75)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:473)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
at org.mortbay.http.HttpServer.service(HttpServer.java:909)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:820)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:986)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:837)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:245)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
Caused by: org.apache.http.ProtocolException: Invalid header:
(v „l0@
at org.apache.http.impl.io.AbstractMessageParser.parseHeaders(AbstractMessageParser.java:184)
at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:214)
at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:271)
at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:235)
at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:259)
at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:292)
at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:126)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:410)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
... 32 more