[CAMEL-8791] NullPointerException thrown when accessing swagger generated /api-docs in camel-example-servlet-rest-tomcat

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.16.0
• Fix Version/s: 2.16.0
• Component/s: camel-swagger

Environment

Tomcat 8.0.22

• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Vaclav Chalupa
• Created: 22/May/15 09:37
• Updated: 28/May/15 04:56
• Resolved: 27/May/15 16:57

Description

SEVERE [http-nio-8080-exec-2] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [ApiDeclarationServlet] in context with path [/camel-example-servlet-rest-tomcat] threw exception
java.lang.NullPointerException
at org.apache.camel.component.swagger.RestSwaggerReader$$anonfun$createParameters$2.apply(RestSwaggerReader.scala:190)
at org.apache.camel.component.swagger.RestSwaggerReader$$anonfun$createParameters$2.apply(RestSwaggerReader.scala:179)
at scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:772)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:771)
at org.apache.camel.component.swagger.RestSwaggerReader.createParameters(RestSwaggerReader.scala:179)
at org.apache.camel.component.swagger.RestSwaggerReader$$anonfun$read$2.apply(RestSwaggerReader.scala:123)
at org.apache.camel.component.swagger.RestSwaggerReader$$anonfun$read$2.apply(RestSwaggerReader.scala:70)
at scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:772)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:771)
at org.apache.camel.component.swagger.RestSwaggerReader.read(RestSwaggerReader.scala:70)
at org.apache.camel.component.swagger.RestApiListingCache$$anonfun$listing$1$$anonfun$apply$1.apply(RestApiListingCache.scala:42)
at org.apache.camel.component.swagger.RestApiListingCache$$anonfun$listing$1$$anonfun$apply$1.apply(RestApiListingCache.scala:41)
at scala.collection.immutable.List.foreach(List.scala:318)
at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
at scala.collection.mutable.ListBuffer.foreach(ListBuffer.scala:45)
at org.apache.camel.component.swagger.RestApiListingCache$$anonfun$listing$1.apply(RestApiListingCache.scala:41)
at org.apache.camel.component.swagger.RestApiListingCache$$anonfun$listing$1.apply(RestApiListingCache.scala:38)
at scala.Option.orElse(Option.scala:257)
at org.apache.camel.component.swagger.RestApiListingCache$.listing(RestApiListingCache.scala:38)
at org.apache.camel.component.swagger.RestSwaggerApiDeclarationServlet.renderResourceListing(RestSwaggerApiDeclarationServlet.scala:171)
at org.apache.camel.component.swagger.RestSwaggerApiDeclarationServlet.doGet(RestSwaggerApiDeclarationServlet.scala:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.camel.component.swagger.RestSwaggerCorsFilter.doFilter(RestSwaggerCorsFilter.scala:44)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1521)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1478)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)

Issue Links

• is duplicated by: CAMEL-8804 NullPointerException in RestSwaggerReader