java.lang.NumberFormatException: For input string: "null" in version 1.6.1

Hi,

I'm using io.swagger annotation version 1.6.1. However I catch a error java.lang.NumberFormatException: For input string: "null" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:76). Could you help me?

    <dependency>
         <groupId>io.swagger</groupId>
         <artifactId>swagger-annotations</artifactId>
         <version>1.6.1</version>
         <scope>provided</scope>
    </dependency>

Error:
javax.ws.rs.ClientErrorException: HTTP 404 Not Found at org.apache.cxf.jaxrs.utils.SpecExceptions.toHttpException(SpecExceptions.java:117) 12 lines skipped for [org.apache.cxf] at com.ibm.ws.jaxrs20.endpoint.AbstractJaxRsWebEndpoint.invoke(AbstractJaxRsWebEndpoint.java:147) at com.ibm.websphere.jaxrs.server.IBMRestServlet.handleRequest(IBMRestServlet.java:192) at com.ibm.websphere.jaxrs.server.IBMRestServlet.doGet(IBMRestServlet.java:158) 1 line skipped for [javax.servlet] at com.ibm.websphere.jaxrs.server.IBMRestServlet.service(IBMRestServlet.java:138) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1235) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:779) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478) at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1134) at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:82) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:966) at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1817) at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:382) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:532) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:318) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:289) at com.ibm.ws.ssl.channel.impl.SSLConnectionLink.determineNextChannel(SSLConnectionLink.java:1187) at com.ibm.ws.ssl.channel.impl.SSLConnectionLink$MyReadCompletedCallback.complete(SSLConnectionLink.java:694) at com.ibm.ws.ssl.channel.impl.SSLReadServiceContext$SSLReadCompletedCallback.complete(SSLReadServiceContext.java:1833) at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:175) at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775) at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1909) Caused by: java.lang.NumberFormatException: For input string: "null" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:76) at java.lang.Integer.parseInt(Integer.java:592) at java.lang.Integer.(Integer.java:879) 3 lines skipped for [sun.] at java.lang.reflect.Constructor.newInstance(Constructor.java:437) 1 line skipped for [org.apache.cxf]

The issue names swagger-annotations 1.6.1 and provides a Java stack trace involving Apache CXF and IBM WebSphere, but no repository file or test. Start by reproducing the NumberFormatException in that dependency and runtime context; done means identifying a reliable cause and documenting or testing a confirmed fix.