我的客户端向我发送单个请求，我的代理处理响应的时间很长 每当增加我的代理的客户端数量出错时 表示使用HTTP请求的客户端请求数量命中的相同服务 我这样的错误
PassThroughHttpListener System may be unstable: HTTP ListeningIOReactor encountered a runtime exception : null
java.lang.NullPointerException
at org.apache.synapse.transport.passthru.SourceResponse.start(SourceResponse.java:83)
at org.apache.synapse.transport.passthru.SourceHandler.responseReady(SourceHandler.java:184)
at org.apache.http.impl.nio.DefaultNHttpServerConnection.produceOutput(DefaultNHttpServerConnection.java:223)
at org.apache.http.impl.nio.DefaultServerIOEventDispatch.outputReady(DefaultServerIOEventDispatch.java:161)
at org.apache.http.impl.nio.reactor.BaseIOReactor.writable(BaseIOReactor.java:179)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:344)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:318)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:278)
at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:542)
at java.lang.Thread.run(Thread.java:679)
Can we handle number of clients in wso2esb for that i need to set any HTTP NOnBlocking Property