URLClassloader->sun.misc.InvalidJarIndexException&java.util.zip.ZipException

最近在使用URLClassloader的加载JAR包中的资源的时候，在系统运行期将JAR包替换成新编译的包（包中数据未变），报错：

Caused by: sun.misc.InvalidJarIndexException: Invalid index
at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:858)
at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:765)
at sun.misc.URLClassPath$JarLoader.findResource(URLClassPath.java:735)
at sun.misc.URLClassPath.findResource(URLClassPath.java:146)
at java.net.URLClassLoader$2.run(URLClassLoader.java:385)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findResource(URLClassLoader.java:382)
at java.lang.ClassLoader.getResource(ClassLoader.java:1002)
at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:1192)

原因：此场景在WINDOWS下正常，由于LINUX文件系统有缓存，新的文件替换后，文件句柄发生变化，缓存失效导致了此问题。

 

以下是xstream解析URLClassloader加载的资源报的错

Caused by: java.util.zip.ZipException: oversubscribed dynamic bit lengths tree
at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:147)
at java.io.FilterInputStream.read(FilterInputStream.java:116)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at java.io.BufferedReader.read1(BufferedReader.java:185)
at java.io.BufferedReader.read(BufferedReader.java:261)
at org.xmlpull.mxp1.MXParser.fillBuf(MXParser.java:2992)
at org.xmlpull.mxp1.MXParser.more(MXParser.java:3046)
at org.xmlpull.mxp1.MXParser.parseProlog(MXParser.java:1410)
at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1395)
at org.xmlpull.mxp1.MXParser.next(MXParser.java:1093)
at com.thoughtworks.xstream.io.xml.XppReader.pullNextEvent(XppReader.java:52)
... 24 more

注意：java.util.zip.ZipException的错误MSG不固定随机产生。