求大神帮忙，异常Fail to save

Question

很早写的代码，之前一直能用，换了台电脑后就不能用了，不知道是什么原因？

Exception in thread "main" org.apache.poi.openxml4j.exceptions.OpenXML4JRuntimeException: Fail to save: an error occurs while saving the package : null
at org.apache.poi.openxml4j.opc.ZipPackage.saveImpl(ZipPackage.java:503)
at org.apache.poi.openxml4j.opc.OPCPackage.save(OPCPackage.java:1467)
at org.apache.poi.POIXMLDocument.write(POIXMLDocument.java:217)
at test.UseProcess.createWorkbook(UseProcess.java:2069)
at test.TestMain.main(TestMain.java:76)
Caused by: java.lang.NullPointerException
at java.util.zip.DeflaterOutputStream.<init>(DeflaterOutputStream.java:84)
at java.util.zip.DeflaterOutputStream.<init>(DeflaterOutputStream.java:142)
at java.util.zip.ZipOutputStream.<init>(ZipOutputStream.java:118)
at java.util.zip.ZipOutputStream.<init>(ZipOutputStream.java:104)
at org.apache.poi.openxml4j.opc.ZipPackage.saveImpl(ZipPackage.java:435)
... 4 more

Answer 1

http://blog.csdn.net/f10_s/article/details/19332697