我正在为LaTeX编写IDE。为了构建我的LaTeX文件，我在GUI中创建了另一个进程，因此如果用户点击该按钮，它将运行：
pdflatex myfile.tex
这是Java中的代码：
public void actionPerformed(ActionEvent arg0) {
ProcessBuilder pb = new ProcessBuilder("pdflatex.exe", currentFileName);
try {
Process p = pb.start();
} catch (IOException e1) {
}
}
当我从命令行（cmd）运行上述命令时，它工作正常，并创建了一个pdf文件。但是，从我的Java程序运行它总是给我一个错误日志。它生成了另外两个文件：file.log和file.aux，但pdf已挂起。任何人都可以给我一个我想念的提示吗？我真的看不出这种方法有什么问题。
**Tex error log**
**hello.tex
(C:\Users\chan\git\Comp585\JavaTextEditor\hello.tex
LaTeX2e
Babel and hyphenation patterns for english, afrikaans, ancientgreek, ar
abic, armenian, assamese, basque, bengali, bokmal, bulgarian, catalan, coptic,
croatian, czech, danish, dutch, esperanto, estonian, farsi, finnish, french, ga
lician, german, german-x-2009-06-19, greek, gujarati, hindi, hungarian, iceland
ic, indonesian, interlingua, irish, italian, kannada, kurmanji, lao, latin, lat
vian, lithuanian, malayalam, marathi, mongolian, mongolianlmc, monogreek, ngerm
an, ngerman-x-2009-06-19, nynorsk, oriya, panjabi, pinyin, polish, portuguese,
romanian, russian, sanskrit, serbian, slovak, slovenian, spanish, swedish, swis
sgerman, tamil, telugu, turkish, turkmen, ukenglish, ukrainian, uppersorbian, u
senglishmax, welsh, loaded.
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Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
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File: size10.clo 2007/10/19 v1.4h Standard LaTeX file (size option)
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Package: ifvtex 2010/03/01 v1.5 Switches for detecting VTeX and its modes (HO)
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Package xcolor Info: Driver file: pdftex.def on input line 225.
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Package: infwarerr 2010/04/08 v1.3 Providing info/warning/message (HO)
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Package xcolor Info: Model `cmy' substituted by `cmy0' on input line 1337.
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Package xcolor Info: Model `wave' substituted by `hsb' on input line 1360.
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(C:\Users\chan\git\Comp585\JavaTextEditor\hello.aux)
LaTeX Font Info: Checking defaults for OML/cmm/m/it on input line 19.
LaTeX Font Info: ... okay on input line 19.
LaTeX Font Info: Checking defaults for T1/cmr/m/n on input line 19.
LaTeX Font Info: ... okay on input line 19.
LaTeX Font Info: Checking defaults for OT1/cmr/m/n on input line 19.
LaTeX Font Info: ... okay on input line 19.
LaTeX Font Info: Checking defaults for OMS/cmsy/m/n on input line 19.
LaTeX Font Info: ... okay on input line 19.
LaTeX Font Info: Checking defaults for OMX/cmex/m/n on input line 19.
LaTeX Font Info: ... okay on input line 19.
LaTeX Font Info: Checking defaults for U/cmr/m/n on input line 19.
LaTeX Font Info: ... okay on input line 19.
*geometry* driver: auto-detecting
*geometry* detected driver: pdftex
*geometry* verbose mode - [ preamble ] result:
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* layout:
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Package layouts Warning: Layout scale set to 0.5 on input line 19.
LaTeX Info: Redefining \celsius on input line 19.
Package gensymb Info: Faking symbols for \degree and \celsius on input line 19.
Package gensymb Warning: Not defining \perthousand.
LaTeX Info: Redefining \ohm on input line 19.
Package gensymb Info: Using \Omega for \ohm on input line 19.
Package gensymb Warning: Not defining \micro.
(C:\Users\chan\AppData\Roaming\MiKTeX\2.9\tex\context\base\supp-pdf.mkii
[Loading MPS to PDF converter (version 2006.09.02).]
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LaTeX Font Info: Try loading font information for U+msa on input line 23.
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\amsfonts\umsa.fd"
File: umsa.fd 2009/06/22 v3.00 AMS symbols A
)
LaTeX Font Info: Try loading font information for U+msb on input line 23.
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\amsfonts\umsb.fd"
File: umsb.fd 2009/06/22 v3.00 AMS symbols B
) [1
{C:/Users/chan/AppData/Local/MiKTeX/2.9/pdftex/config/pdftex.map}]
(C:\Users\chan\git\Comp585\JavaTextEditor\hello.aux) )
Here is how much of TeX's memory you used:
3796 strings out of 494045
49794 string characters out of 3145972
132506 words of memory out of 3000000
7060 multiletter control sequences out of 15000+200000
5339 words of font info for 22 fonts, out of 3000000 for 9000
715 hyphenation exceptions out of 8191
27i,5n,35p,222b,117s stack positions out of 5000i,500n,10000p,200000b,50000s
!pdfTeX error: pdflatex.exe (file C:/Program Files (x86)/MiKTeX 2.9/fonts/type1
/public/amsfonts/cm/cmsy10.pfb): fflush() failed (Invalid argument)
==> Fatal error occurred, no output PDF file produced!