Question

我正在尝试使用Apache POI和OPCPackage编辑excel文件，但由于一些奇怪的原因，我无法正常工作。以下是代码段：

File file = new File(basePath, fileName);
int currentColNum=0, currentRowNum=0;
OPCPackage pkg = null;
Workbook wb = null;
if(file.exists())
    pkg = OPCPackage.open(file);
    wb = new XSSFWorkbook(pkg);
else
    wb = new XSSFWorkbook();
Sheet sheet = wb.getSheet(sheetName);
if(sheet==null)
    sheet = wb.createSheet(sheetName);
else
    currentRowNum = lastWrittenRowCol.get(sheetName).getLeft();
for(Entry<?,?> entry : map.entrySet()) {
    //some code. This code uses functions like sheet.createRow() etc.
}
FileOutputStream out = new FileOutputStream(file);
System.out.println("before write.out");  //Printed/
wb.write(out);
System.out.println("last statement");   //Not printed.
    out.close();
if(pkg!=null)
        pkg.close();

我收到以下错误：

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGBUS (0x7) at pc=0x00002b517248dae2, pid=14557, tid=47628802967872
#
# JRE version: 7.0_25-b15
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.25-b01 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# C  [libzip.so+0x4ae2]  newEntry+0x62
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

这是日志中的内存信息：

/proc/meminfo:
MemTotal:      5855708 kB
MemFree:       1413996 kB
Buffers:        815896 kB
Cached:        1939120 kB
SwapCached:          0 kB
Active:        2339452 kB
Inactive:      1512396 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      5855708 kB
LowFree:       1413872 kB
SwapTotal:     5140792 kB
SwapFree:      5140792 kB
Dirty:            5556 kB
Writeback:           0 kB
AnonPages:     1096860 kB
Mapped:         112944 kB
Slab:           520072 kB
PageTables:      39008 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   8068644 kB
Committed_AS:  2106544 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     51844 kB
VmallocChunk: 34359686179 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

我正在使用Eclipse。程序使用参数-Xms512m -Xmx2048m运行。 wb.write(out)存在一些问题，因为在该行之前的语句被打印但是下一行不是。（我知道我应该使用调试器，但我不知道如何在我们的构建系统的eclipse中插入它）。任何帮助表示赞赏！

Answer 1

由于XSSF操纵Open XML格式，编写它需要操作存档（zip）.. jzlib中有bug ..

请检查此修复JVM crashes at libzip.so

我希望这可以提供帮助！

在编辑Excel文件时，崩溃发生在Java虚拟机外部的本机代码错误中

1 个答案: