java - 为什么是 ItemSkippedException？

Question

我正在尝试更新 Google 网站中的内容，并且正在读取异常 VersionConflictException 中的流。

当我检查流时，它一切正常并且已完全加载到 POST 请求中，但随后出现以下错误。

org.apache.commons.fileupload.FileItemStream$ItemSkippedException
at org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:880)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
at com.google.gdata.data.media.MediaSource$Output.writeTo(MediaSource.java:87)
at com.google.gdata.data.media.MediaBodyPart$MediaSourceDataHandler.writeTo(MediaBodyPart.java:74)
at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:452)
at javax.mail.internet.MimeMultipart.writeTo(MimeMultipart.java:157)
at com.google.gdata.wireformats.output.media.MediaMultipartGenerator.generate(MediaMultipartGenerator.java:58)
at com.google.gdata.wireformats.output.media.MediaMultipartGenerator.generate(MediaMultipartGenerator.java:37)
at com.google.gdata.client.Service.writeRequestData(Service.java:1831)
at com.google.gdata.client.media.MediaService.updateMedia(MediaService.java:497)
at com.google.gdata.data.media.MediaEntry.updateMedia(MediaEntry.java:159)
at morefile.UploadApp.updateAttachment(UploadApp.java:136)

Answer 1

FileItemStream.ItemSkippedException

This exception is thrown, if an attempt is made to read data from the InputStream, which has been returned by FileItemStream.openStream(), after Iterator.hasNext() has been invoked on the iterator, which created the FileItemStream.