package LDLoad;import java.util.*;import java.util.zip.*;import java.io.*;/* The idea and implementation of this came from Ed Olson and the MasLab   codebase. */public class LDLoad {  static public boolean loadFromJar(String jarFilename, String soFilename)  {        //The jar should be in the classpath.  Look for it there.    String cp = System.getProperty("java.class.path");    String[] items = cp.split(":");    for (int i = 0; i < items.length; i++) {      if (items[i].endsWith(jarFilename) && (new File(items[i])).exists()) {	try{	  int size = 0;	  boolean found = false;	  ZipFile zf=new ZipFile(items[i]);	  Enumeration e=zf.entries();	  while (e.hasMoreElements()) {            ZipEntry ze=(ZipEntry)e.nextElement();	    if (ze.getName().equals(soFilename)) {	      size = (int)ze.getSize();	      found = true;	      break;	    }	  }	  zf.close();	  if (!found)	    throw new RuntimeException(jarFilename+" does not contain .so "+soFilename);	  FileInputStream fis = new FileInputStream(items[i]);	  BufferedInputStream bis = new BufferedInputStream(fis);	  ZipInputStream zis = new ZipInputStream(bis);	  File soFile = new File(soFilename);	  	  File output = File.createTempFile("lib", soFile.getName());	  FileOutputStream fos = new FileOutputStream(output);	  ZipEntry ze = null;	  while ((ze = zis.getNextEntry()) != null) {	    if (ze.getName().equals(soFilename)) {	      int count = 0;	      byte[] result = new byte[size];	      while (count < size)		count += zis.read(result,count,size-count);	      fos.write(result);	      break;	    }	  }	  fos.close();	  System.load(output.toString());	  output.delete();	  return true;	}	catch(IOException ioe){	  System.err.println(ioe);	}      }    }    throw new RuntimeException("Unable to load native library "+soFilename+			       " from "+jarFilename);  }}