确定Matlab加载的java类的位置 [英] Determine location of a java class loaded by Matlab

问题描述

当使用Matlab中的java时，有没有办法弄清楚matlab的java类路径在哪里被加载？我正在尝试诊断由同时使用的同一类的冲突版本引起的错误。

When using java from Matlab, is there some way to figure out from where in matlab's java class path is a class being loaded? I'm trying to diagnose a error caused by conflicting versions of the same class being used simultaneously.

具体来说，我正在寻找的类是org.apache.lucene .store.FSDirectory。它似乎被其中一个matlab工具箱使用，但我不知道哪一个。

Specifically, the class I'm looking for is org.apache.lucene.store.FSDirectory. It seems to be used by one of the matlab toolboxes, but I don't know which one.

推荐答案

来自 http://www.exampledepot.com/egs/java.lang/ClassOrigin.html

// Get the location of this class
  Class cls = this.getClass();
 ProtectionDomain pDomain = cls.getProtectionDomain();
  CodeSource cSource = pDomain.getCodeSource();
  URL loc = cSource.getLocation();  // file:/c:/almanac14/examples/

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