JIRA log flooded with java.io.IOException: Broken pipe (ScalaJavaInterOp.java:27)

2016-02-29 14:13:55,466 http-nio-8080-exec-5 ERROR      [o.a.c.c.C.[.[localhost].[/].[default]] Servlet.service() for servlet [default] in context with path [] threw exception
java.lang.RuntimeException: org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
	at com.atlassian.servicedesk.internal.util.scala.ScalaJavaInterOp$1.apply(ScalaJavaInterOp.java:27)
	at com.atlassian.servicedesk.internal.utils.context.CustomerContextUtil$.outOfCustomerContext(CustomerContextUtil.scala:48)
	at com.atlassian.servicedesk.internal.utils.context.CustomerContextUtil.outOfCustomerContext(CustomerContextUtil.scala)
	at com.atlassian.servicedesk.internal.utils.context.CustomerContextServiceImpl.outOfCustomerContext(CustomerContextServiceImpl.java:24)
	at com.atlassian.servicedesk.internal.web.CustomerContextSettingFilter.outOfCustomerContext(CustomerContextSettingFilter.java:164)
	at com.atlassian.servicedesk.internal.web.CustomerContextSettingFilter.doFilterImpl(CustomerContextSettingFilter.java:120)
	at com.atlassian.servicedesk.internal.web.CustomerContextSettingFilter.doFilter(CustomerContextSettingFilter.java:112)
	... 55 filtered
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipe
	at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:393)
	at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:426)
	at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:342)
	at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:317)
	at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:110)
	at com.sun.jersey.spi.container.ContainerResponse$CommittingOutputStream.flush(ContainerResponse.java:146)
	at org.codehaus.jackson.impl.Utf8Generator.flush(Utf8Generator.java:1085)
	at org.codehaus.jackson.map.ObjectMapper.writeValue(ObjectMapper.java:1606)
	at org.codehaus.jackson.jaxrs.JacksonJsonProvider.writeTo(JacksonJsonProvider.java:558)
	at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:302)
	... 5 filtered
	at com.atlassian.plugins.rest.module.RestDelegatingServletFilter$JerseyOsgiServletContainer.doFilter(RestDelegatingServletFilter.java:154)
	... 1 filtered
	at com.atlassian.plugins.rest.module.RestDelegatingServletFilter.doFilter(RestDelegatingServletFilter.java:68)
	... 91 filtered
	at com.atlassian.jira.security.JiraSecurityFilter.doFilter(JiraSecurityFilter.java:70)
	... 15 filtered
	at com.atlassian.plugins.rest.module.servlet.RestSeraphFilter.doFilter(RestSeraphFilter.java:37)
	... 22 filtered
	at com.atlassian.servicedesk.internal.web.CustomerContextSettingFilter.lambda$invokeFilterChain$664(CustomerContextSettingFilter.java:169)
	at com.atlassian.servicedesk.internal.web.CustomerContextSettingFilter$$Lambda$536/965792867.call(Unknown Source)
	at com.atlassian.servicedesk.internal.util.scala.ScalaJavaInterOp$1.apply(ScalaJavaInterOp.java:25)
	... 65 more
Caused by: java.io.IOException: Broken pipe
	at sun.nio.ch.FileDispatcherImpl.write0(Native Method)
	at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
	at sun.nio.ch.IOUtil.write(IOUtil.java:65)
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
	... 10 filtered
	... 216 more