首先说明一下问题出现在什么情况之下，在回调请求系统的servlt时报BufferOverflowException问题，详细的bug日志如下：
ERROR [org.apache.catalina.connector] (web-container-thread-8) JBWEB001018: An exception or error occurred in the container during the request processing: java.nio.BufferOverflowException
at java.nio.DirectByteBuffer.put(DirectByteBuffer.java:357) [rt.jar:1.7.0_80]
at org.apache.coyote.http11.InternalNioOutputBuffer.commit(InternalNioOutputBuffer.java:669) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.coyote.http11.Http11NioProcessor.commit(Http11NioProcessor.java:480) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.coyote.http11.Http11NioProcessor.action(Http11NioProcessor.java:798) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.coyote.Response.action(Response.java:190) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.coyote.Response.sendHeaders(Response.java:390) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:352) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:318) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.catalina.connector.Response.finishResponse(Response.java:487) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:371) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:353) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:911) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.apache.tomcat.util.net.NioEndpoint$ChannelProcessor.run(NioEndpoint.java:930) [jbossweb-7.4.0.Final.jar:7.4.0.Final]
at org.jboss.threads.SimpleDirectExecutor.execute(SimpleDirectExecutor.java:33) [jboss-threads-2.1.2.Final.jar:2.1.2.Final]
at org.jboss.threads.QueueExecutor.runTask(QueueExecutor.java:808) [jboss-threads-2.1.2.Final.jar:2.1.2.Final]
at org.jboss.threads.QueueExecutor.access$100(QueueExecutor.java:45) [jboss-threads-2.1.2.Final.jar:2.1.2.Final]
at org.jboss.threads.QueueExecutor$Worker.run(QueueExecutor.java:828) [jboss-threads-2.1.2.Final.jar:2.1.2.Final]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_80]
at org.jboss.threads.JBossThread.run(JBossThread.java:122) [jboss-threads-2.1.2.Final.jar:2.1.2.Final]
解决方案：
1，增加JVM 内存. -XX:PermSize=64M -XX:MaxPermSize=128m设大点
2，检查一下是不是jdk版本的原因
3，自身代码是不是有问题
4，可能是Jboss容器问题 ，Jbossweb的版本
因为我们用的upjas，最终是在升级了upjas的版本后，才解决问题