https://jira.opendaylight.org This file is an XML representation of an issue en-us 8.20.10 820010 22-06-2022 https://jira.opendaylight.org/browse/NEUTRON-66 neutron <p>While trying to display the subnet information, I hit on the following null pointer exception.</p> <p>Here are the steps I did.<br/> 1)On a devstack (stable/kilo) setup installed ODL(beryllium)<br/> 2)Created a network with subnet<br/> 3)Deleted the subnet<br/> 4)Use api to display the subnet info.</p> <p>GET controller/nb/v2/neutron/subnets</p> <p>&lt;html&gt;<br/> &lt;head&gt;<br/> &lt;meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/&gt;<br/> &lt;title&gt;Error 500 Server Error&lt;/title&gt;<br/> &lt;/head&gt;<br/> &lt;body&gt;<br/> &lt;h2&gt;HTTP ERROR 500&lt;/h2&gt;<br/> &lt;p&gt;Problem accessing /controller/nb/v2/neutron/subnets. Reason:</p> <p> &lt;pre&gt; Server Error&lt;/pre&gt;<br/> &lt;/p&gt;<br/> &lt;h3&gt;Caused by:&lt;/h3&gt;<br/> &lt;pre&gt;java.lang.NullPointerException<br/> at org.opendaylight.neutron.transcriber.NeutronSubnetInterface.fromMd(NeutronSubnetInterface.java:163)<br/> at org.opendaylight.neutron.transcriber.NeutronSubnetInterface.getAllSubnets(NeutronSubnetInterface.java:97)<br/> at org.opendaylight.neutron.northbound.api.NeutronSubnetsNorthbound.listSubnets(NeutronSubnetsNorthbound.java:121)<br/> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br/> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)<br/> at java.lang.reflect.Method.invoke(Method.java:606)<br/> at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)<br/> at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)<br/> at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)<br/> at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)<br/> at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)<br/> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)<br/> at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)<br/> at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511)<br/> at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442)<br/> at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391)<br/> at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381)<br/> at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)<br/> at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538)<br/> at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716)<br/> at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)<br/> at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)<br/> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496)<br/> at org.eclipse.jetty.servlets.CrossOriginFilter.handle(CrossOriginFilter.java:247)<br/> at org.eclipse.jetty.servlets.CrossOriginFilter.doFilter(CrossOriginFilter.java:210)<br/> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467)<br/> at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501)<br/> at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:69)<br/> at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)<br/> at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)<br/> at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)<br/> at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)<br/> at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:240)<br/> at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:429)<br/> at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)<br/> at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)<br/> at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)<br/> at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:75)<br/> at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)<br/> at org.eclipse.jetty.server.Server.handle(Server.java:370)<br/> at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)<br/> at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:971)<br/> at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1033)<br/> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644)<br/> at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)<br/> at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)<br/> at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:696)<br/> at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:53)<br/> at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)<br/> at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)<br/> at java.lang.Thread.run(Thread.java:745)<br/> &lt;/pre&gt;<br/> &lt;hr /&gt;<br/> &lt;i&gt;<br/> &lt;small&gt;Powered by Jetty://&lt;/small&gt;<br/> &lt;/i&gt;</p> <p> &lt;/body&gt;<br/> &lt;/html&gt;</p> <p>Operating System: All<br/> Platform: All</p> NEUTRON-66

java.lang.NullPointerException at org.opendaylight.neutron.transcriber.NeutronSubnetInterface.fromMd

Bug Resolved Done Ravindra Kenchappa Rijil Abraham Wed, 9 Sep 2015 14:50:57 +0000 Fri, 16 Oct 2015 05:42:07 +0000 Fri, 16 Oct 2015 05:42:07 +0000 master transcriber 0 2 <p>Attachment q-svc.log.2015-09-09-091950 has been added with description: q-svc log</p> <p>Attachment karaf.log has been added with description: odl log</p> <p>Exact steps to recreate the issue:</p> <p>1)On a devstack (stable/kilo) setup installed ODL(beryllium)</p> <p>2)Create a network using the POST API<br/> POST <a href="http://105.0.1.210:8181/controller/nb/v2/neutron/networks" class="external-link" target="_blank" rel="nofollow noopener">http://105.0.1.210:8181/controller/nb/v2/neutron/networks</a><br/> body - {"network": {"status": "ACTIVE", "subnets": [], "name": "tempest-test-network--35617655", "router:external": false, "tenant_id": "1d7ecd7c5a5b4f84afd5ddd735e0f6b6", "admin_state_up": true, "mtu": 0, "shared": false, "id": "9df465d6-e398-4a01-8f4d-071b5ac2f24d"}}</p> <p>3)Create a subnet using POST API<br/> POST <a href="http://105.0.1.210:8181/controller/nb/v2/neutron/subnets" class="external-link" target="_blank" rel="nofollow noopener">http://105.0.1.210:8181/controller/nb/v2/neutron/subnets</a><br/> body - {"subnet": {"name": "", "enable_dhcp": true, "network_id": "9df465d6-e398-4a01-8f4d-071b5ac2f24d", "tenant_id": "1d7ecd7c5a5b4f84afd5ddd735e0f6b6", "dns_nameservers": [], "gateway_ip": null, "ipv6_ra_mode": null, "allocation_pools": [</p> {"start": "2003::3", "end": "2003::4"} <p>], "host_routes": [], "ip_version": 6, "ipv6_address_mode": null, "cidr": "2003::/64", "id": "251598aa-bccf-4c1c-b429-655565b80f7e", "subnetpool_id": null}}</p> <p>4)Delete the network using the DELETE API<br/> DELETE <a href="http://105.0.1.210:8181/controller/nb/v2/neutron/networks/9df465d6-e398-4a01-8f4d-071b5ac2f24d" class="external-link" target="_blank" rel="nofollow noopener">http://105.0.1.210:8181/controller/nb/v2/neutron/networks/9df465d6-e398-4a01-8f4d-071b5ac2f24d</a></p> <p>5)Now using the API display the subnet info<br/> GET <a href="http://105.0.1.210:8181/controller/nb/v2/neutron/subnets" class="external-link" target="_blank" rel="nofollow noopener">http://105.0.1.210:8181/controller/nb/v2/neutron/subnets</a></p> <p>When deleting the network in NeutronSubnetinterface.java it tries to access all the subnets belongs the network that being deleted. For some reason some of subnets do not have the gateway-ip and hence the NPE. When NPE check is added the issue is not seen and in the test-network.py tempest test 6 more tests case were passed. Now we have 6 failures related to UPDATE network testcase.</p> <p><a href="https://git.opendaylight.org/gerrit/#/c/27619/" class="external-link" target="_blank" rel="nofollow noopener">https://git.opendaylight.org/gerrit/#/c/27619/</a></p> <p>Can you please try the above patch?</p> <p>NOTE: looking at openstack neutron code, ipv6 ra mode and ipv6 address mode also can be null in addition to gateway ip.<br/> So the uploaded patch includes null pointer check for all of three.</p> <p>I looked at the changes <a href="https://git.opendaylight.org/gerrit/#/c/27619/" class="external-link" target="_blank" rel="nofollow noopener">https://git.opendaylight.org/gerrit/#/c/27619/</a> and it should work, but the other 2 checks is not needed because there will not be NPE until the "subnet" is NULL.</p> <p>if (subnet.getIpv6RaMode() != null) {<br/> result.setIpV6RaMode(DHCPV6_MAP.get(subnet.getIpv6RaMode()));<br/> }<br/> if (subnet.getIpv6AddressMode() != null) { result.setIpV6AddressMode(DHCPV6_MAP.get(subnet.getIpv6AddressMode()));<br/> }</p> <p>In this test-case when the SUBNET is created the gateway-ip is set to NULL.</p> <p>3)Create a subnet using POST API<br/> POST <a href="http://105.0.1.210:8181/controller/nb/v2/neutron/subnets" class="external-link" target="_blank" rel="nofollow noopener">http://105.0.1.210:8181/controller/nb/v2/neutron/subnets</a><br/> body - {"subnet": {"name": "", "enable_dhcp": true, "network_id": "9df465d6-e398-4a01-8f4d-071b5ac2f24d", "tenant_id": "1d7ecd7c5a5b4f84afd5ddd735e0f6b6", "dns_nameservers": [], "gateway_ip": null, "ipv6_ra_mode": null, "allocation_pools": [</p> {"start": "2003::3", "end": "2003::4"} <p>], "host_routes": [], "ip_version": 6, "ipv6_address_mode": null, "cidr": "2003::/64", "id": "251598aa-bccf-4c1c-b429-655565b80f7e", "subnetpool_id": null}}</p> <p>And in fromMD() we tried to access the gateway_ip from the subnet object and tries get its vlaue, since gateway_ip is null we get NPE.</p> <p>result.setGatewayIP(String.valueOf(subnet.getGatewayIp().getValue()));</p> <p>We have encounter another issue and fixing that also and uploading that patch.</p> Development External issue ID 4285 External issue URL Rank 0|i02uhz: