页面显示Nginx 502 gateway错误，tomcat日志显示如下错误
11-May-2017 09:03:53.752 SEVERE [http-nio-8081-exec-17] org.apache.coyote.http11.Http11Processor.service Error processing request
java.nio.BufferOverflowException
at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:183)
at org.apache.coyote.http11.Http11OutputBuffer.write(Http11OutputBuffer.java:454)
at org.apache.coyote.http11.Http11OutputBuffer.write(Http11OutputBuffer.java:439)
at org.apache.coyote.http11.Http11OutputBuffer.sendHeader(Http11OutputBuffer.java:397)
at org.apache.coyote.http11.Http11Processor.prepareResponse(Http11Processor.java:1277)
at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:263)
at org.apache.coyote.Response.action(Response.java:170)
at org.apache.coyote.Response.sendHeaders(Response.java:352)
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:303)
at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:263)
at org.apache.catalina.connector.Response.finishResponse(Response.java:484)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:789)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
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)