Details
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Bug
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Resolution: Done
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Major
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None
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None
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None
Description
If a resource returns a null value and it's processed by a ContainerResponseFilter where the filter attempts to set the entity, unpredictable results occur. If ContainerResponseFilter.setEntity("changed"); is invoked an NPE occurs:
08:34:57,779 ERROR [org.jboss.resteasy.plugins.server.netty.i18n] (nioEventLoopGroup-3-1) RESTEASY018525: Unexpected: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:368) at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:218) at org.jboss.resteasy.core.SynchronousDispatcher.writeResponse(SynchronousDispatcher.java:614) at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:524) at org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke$4(SynchronousDispatcher.java:261) at org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess$0(SynchronousDispatcher.java:161) at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364) at org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:164) at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:247) at org.jboss.resteasy.plugins.server.netty.RequestDispatcher.service(RequestDispatcher.java:86) at org.jboss.resteasy.plugins.server.netty.RequestHandler.channelRead0(RequestHandler.java:51) at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61) at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:370) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: java.lang.NullPointerException at org.jboss.resteasy.core.MediaTypeMap$CachedMediaTypeAndClass.<init>(MediaTypeMap.java:297) at org.jboss.resteasy.core.MediaTypeMap.getPossible(MediaTypeMap.java:553) at org.jboss.resteasy.core.providerfactory.ResteasyProviderFactoryImpl.resolveMessageBodyWriter(ResteasyProviderFactoryImpl.java:1287) at org.jboss.resteasy.core.providerfactory.ResteasyProviderFactoryImpl.getMessageBodyWriter(ResteasyProviderFactoryImpl.java:1268) at org.jboss.resteasy.core.ServerResponseWriter.lambda$writeNomapResponse$3(ServerResponseWriter.java:117) at org.jboss.resteasy.core.interception.jaxrs.ContainerResponseContextImpl.filter(ContainerResponseContextImpl.java:404) at org.jboss.resteasy.core.ServerResponseWriter.executeFilters(ServerResponseWriter.java:252) at org.jboss.resteasy.core.ServerResponseWriter.writeNomapResponse(ServerResponseWriter.java:101) at org.jboss.resteasy.core.ServerResponseWriter.writeNomapResponse(ServerResponseWriter.java:74) at org.jboss.resteasy.core.SynchronousDispatcher.writeResponse(SynchronousDispatcher.java:594) ... 19 more
If ContainerResponseContext..setEntity("changed", null, MediaType.TEXT_PLAIN_TYPE); is invoked nothing seems to happen. The value null is not changed on the entity.
The linked forum post has details.
Attachments
Issue Links
- is incorporated by
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WFLY-16828 [26.x] Upgrade RESTEasy to 4.7.7.Final
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- Closed
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