解压 war/jar文件时出现以下错误：

java.util.zip.ZipException: invalid distance too far back at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.readFromInflater(ZipArchiveInputStream.java:478) at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.readDeflated(ZipArchiveInputStream.java:443) at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.read(ZipArchiveInputStream.java:384) at java.io.InputStream.read(Unknown Source) at org.apache.commons.compress.utils.IOUtils.copy(IOUtils.java:75) at org.apache.commons.compress.utils.IOUtils.copy(IOUtils.java:56) at com.xunge.AESFileEncoder$1.run(AESFileEncoder.java:149) at java.lang.Thread.run(Unknown Source) Caused by: java.util.zip.DataFormatException: invalid distance too far back at java.util.zip.Inflater.inflateBytes(Native Method) at java.util.zip.Inflater.inflate(Unknown Source) at org.apache.commons.compress.archivers.zip.ZipArchiveInputStream.readFromInflater(ZipArchiveInputStream.java:476) … 7 more

相关代码：

PipedInputStream pin = new PipedInputStream();                    PipedOutputStream pout = new PipedOutputStream(pin);                    new Thread(new Runnable() {                        public void run() {                            try {                                IOUtils.copy(ais, pout);                                pout.close();                            } catch (IOException e) {                                // TODO Auto-generated catch block                                e.printStackTrace();                            }                        }                    }).start();                    ArchiveInputStream inJar = new ArchiveStreamFactory()                            .createArchiveInputStream(ArchiveStreamFactory.JAR,                                    pin);

以上代码是没有问题，如果使用 pin 的代码和 pin 的声明代码中间隔了太多的代码就会产生此异常。具体没有做试验，也可能是有逻辑判断语句的原因。