我正在android客户端(API 17)中使用HL7消息，并使用Hapi库生成和解析HL7消息。当我传输小的字符串值时，该消息工作正常。 但是我必须通过Http将图像发送到HL7服务器，为此，我正在使用HL7 2.5版的MDM_T02消息。 当我发送图像转换为Base64字符串并插入OBX-5字段的HL7消息时，服务器端出现以下错误。

Jul 23, 2013 3:05:32 PM org.apache.catalina.core.StandardWrapperValve invoke

SEVERE: Servlet.service() for servlet [com.tcs.hl7server.MyServer] in context with path [/MyHL7Server] threw exception

java.lang.ArrayIndexOutOfBoundsException

at java.lang.System.arraycopy(Native Method)

at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:441)

at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:315)

at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:200)

at ca.uhn.hl7v2.hoh.encoder.AbstractHl7OverHttpDecoder.readBytesNonChunked(AbstractHl7OverHttpDecoder.java:370)

at ca.uhn.hl7v2.hoh.encoder.AbstractHl7OverHttpDecoder.doReadContentsFromInputStreamAndDecode(AbstractHl7OverHttpDecoder.java:191)

at ca.uhn.hl7v2.hoh.encoder.AbstractHl7OverHttpDecoder.readContentsFromInputStreamAndDecode(AbstractHl7OverHttpDecoder.java:421)

at ca.uhn.hl7v2.hoh.raw.server.HohRawServlet.doPost(HohRawServlet.java:68)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

at java.lang.Thread.run(Thread.java:722)

我不明白为什么ByteChunk.java给错误。

如果有人能对此有所启发，将不胜感激。 谢谢。