[CAMEL-8694] java.lang.NullPointerException in at org.apache.camel.component.netty4.http.NettyHttpProducer$NettyHttpProducerCallback.done

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.15.1
• Fix Version/s: 2.14.3, 2.15.2, 2.16.0
• Component/s: camel-netty4-http
• Estimated Complexity: Unknown
• Assignee: Christian Müller
• Reporter: Homayoun Zariv
• Created: 24/Apr/15 05:48
• Updated: 24/Apr/15 21:30
• Resolved: 24/Apr/15 21:30

Description

I am using camel-netty4-http 2.15.1 version and getting the following NPE in org.apache.camel.component.netty4.http.NettyHttpProducer$NettyHttpProducerCallback.done. Debugging through the code it seems like null check for response is missing.

public void done(boolean doneSync) {
try {
NettyHttpMessage nettyMessage = exchange.hasOut() ? exchange.getOut(NettyHttpMessage.class) : exchange.getIn(NettyHttpMessage.class);
if (nettyMessage != null) {
FullHttpResponse response = nettyMessage.getHttpResponse();
// Need to retain the ByteBuffer for producer to consumer
// TODO Remove this part of ByteBuffer right away
response.content().retain(); <-- response in null
if (response != null) {

java.lang.NullPointerException
at org.apache.camel.component.netty4.http.NettyHttpProducer$NettyHttpProducerCallback.done(NettyHttpProducer.java:98)
at org.apache.camel.component.netty4.NettyProducer.process(NettyProducer.java:181)
at org.apache.camel.component.netty4.http.NettyHttpProducer.process(NettyHttpProducer.java:52)
at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:129)
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:448)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
at org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:111)
at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)
at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:448)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.processAsynchronously(ServerChannelHandler.java:134)
at org.apache.camel.component.netty4.handlers.ServerChannelHandler.channelRead0(ServerChannelHandler.java:105)
at org.apache.camel.component.netty4.http.handlers.HttpServerChannelHandler.channelRead0(HttpServerChannelHandler.java:202)
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
at org.apache.camel.component.netty4.http.handlers.HttpServerMultiplexChannelHandler.channelRead0(HttpServerMultiplexChannelHandler.java:119)
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:32)
at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:329)
at io.netty.util.concurrent.DefaultEventExecutor.run(DefaultEventExecutor.java:36)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at java.lang.Thread.run(Thread.java:744)