Javaプロジェクトのためのクラスパスをロード

public class SqlGenerator {
	
	/**
	 * @param args   3   ：
	 * <li>     : hbm     ,        “#”  
	 * <li>     ：      
	 * <li>     ：      
	 * 
	 * @throws ClassNotFoundException
	 */
	public static void main(String[] args) throws ClassNotFoundException {
		if (args == null || args.length != 3)
			return;
		
		Configuration cfg = new Configuration();
		cfg.getProperties().put("hibernate.dialect",
		    "org.hibernate.dialect.Oracle9Dialect");
		
		String hbmPaths = args[0];
		StringTokenizer st = new StringTokenizer(hbmPaths, "#");
		while (st.hasMoreElements()) {
			String path = st.nextElement().toString();
			File file = new File(path);
			if(file.exists()){
				cfg.addFile(file);
			}
		}
	
		SchemaExport se = new SchemaExport(cfg);
		
		File dir = new File(args[1]);
		
		//            
		File temp = dir; 
		while(!temp.getParentFile().getName().equals("") ){//           
			temp = temp.getParentFile();
			if(!temp.exists()){
				temp.mkdir();
			}
		}
		
		if(!dir.exists() ){
			dir.mkdir();
		}
		if( dir.exists() && dir.isDirectory()){
			File file = new File(args[2]);
			se.setOutputFile(args[2]);
		}
		
		se.execute(true, false, false, false);
	}
}

                /**
	  *     classpath   studio.jar 
	 * @param javaProject
	 */
	private void addExtenalJar(IJavaProject javaProject) {
		try {
			IClasspathEntry[] oldEntries = javaProject.getRawClasspath();

			IClasspathEntry entry = JavaCore.newLibraryEntry(
					new Path(getJarPath()), null, null);
			IClasspathEntry[] newEntries = new IClasspathEntry[oldEntries.length + 1];
			System.arraycopy(oldEntries, 0, newEntries, 0, oldEntries.length);
			newEntries[oldEntries.length]=entry;
			javaProject.setRawClasspath(newEntries, null);
		} catch (JavaModelException e) {
			e.printStackTrace();
		}
	}
                /**
	 * @return   studio.jar   
	 */
	private String getJarPath() {
		URL url = Platform.getBundle(SpringUIPlugin.PLUGIN_ID).getEntry(STUDIO_ JAR);
		try {
			return FileLocator.toFileURL(url).getFile();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return null;
	}
	/**
	 *     classpath   studio.jar 
	 * @param javaProject
	 */
	private void removeExtenalJar(IJavaProject javaProject){
		try {
			IClasspathEntry[] oldEntries = javaProject.getRawClasspath();
			List<IClasspathEntry> list=new ArrayList<IClasspathEntry>();
			for(IClasspathEntry entry:oldEntries){
				if(!(entry.getEntryKind()==IClasspathEntry.CPE_LIBRARY && STUDIO_JAR.equals(entry.getPath().toFile().getName())) ){
					list.add(entry);
				}
			}
			IClasspathEntry[] newEntries =(IClasspathEntry[])list.toArray(new IClasspathEntry[]{});

			javaProject.setRawClasspath(newEntries, null);
		} catch (JavaModelException e) {
			e.printStackTrace();
		}
	}