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DateTime	Author	Rev	#	Content
2012-07-28T16:31:18	aha00a	1	0
2012-07-28T16:31:18	aha00a	1	1	= [wiki:Java] `-Djava.library.path` Using Code =
2012-07-28T16:31:18	aha00a	1	2
2012-07-28T16:31:18	aha00a	1	3	`[wiki:JavaMinusDJavaLibraryPathUsingCode Java -Djava.library.path Using Code]`
2012-07-28T16:31:18	aha00a	1	4
2012-07-28T16:31:18	aha00a	1	5	[wiki:Java]의 VM option중 `-Djava.library.path`를 code로 설정하는 방법
2012-07-28T16:31:18	aha00a	1	6
2012-07-28T16:31:18	aha00a	1	7	[[[
2012-07-28T16:31:18	aha00a	1	8	#!Vim
2012-07-28T16:31:18	aha00a	1	9	#!java
2012-07-28T16:31:18	aha00a	1	10	public class JavaLibraryPathUtil {
2012-07-28T16:31:18	aha00a	1	11	public static void addDir(String dir) throws IOException {
2012-07-28T16:31:18	aha00a	1	12	try {
2012-07-28T16:31:18	aha00a	1	13	Field field = ClassLoader.class.getDeclaredField("usr_paths");
2012-07-28T16:31:18	aha00a	1	14	field.setAccessible(true);
2012-07-28T16:31:18	aha00a	1	15	String[] paths = (String[])field.get(null);
2012-07-28T16:31:18	aha00a	1	16	for (int i = 0; i < paths.length; i++) {
2012-07-28T16:31:18	aha00a	1	17	if (dir.equals(paths[i])) {
2012-07-28T16:31:18	aha00a	1	18	return;
2012-07-28T16:31:18	aha00a	1	19	}
2012-07-28T16:31:18	aha00a	1	20	}
2012-07-28T16:31:18	aha00a	1	21	String[] tmp = new String[paths.length+1];
2012-07-28T16:31:18	aha00a	1	22	System.arraycopy(paths, 0, tmp, 0, paths.length);
2012-07-28T16:31:18	aha00a	1	23	tmp[paths.length] = dir;
2012-07-28T16:31:18	aha00a	1	24	field.set(null,tmp);
2012-07-28T16:31:18	aha00a	1	25	System.setProperty("java.library.path", System.getProperty("java.library.path") + File.pathSeparator + dir);
2012-07-28T16:31:18	aha00a	1	26	} catch (IllegalAccessException e) {
2012-07-28T16:31:18	aha00a	1	27	throw new IOException("Failed to get permissions to set library path");
2012-07-28T16:31:18	aha00a	1	28	} catch (NoSuchFieldException e) {
2012-07-28T16:31:18	aha00a	1	29	throw new IOException("Failed to get field handle to set library path");
2012-07-28T16:31:18	aha00a	1	30	}
2012-07-28T16:31:18	aha00a	1	31	}
2012-07-28T16:31:18	aha00a	1	32
2012-07-28T16:31:18	aha00a	1	33	}
2012-07-28T16:31:18	aha00a	1	34	]]]
2012-07-28T16:33:48	aha00a	2	35
2012-07-28T16:33:48	aha00a	2	36	== References ==
2012-07-28T16:33:48	aha00a	2	37	* http://stackoverflow.com/questions/5419039/is-djava-library-path-equivalent-to-system-setpropertyjava-library-path

Blame of JavaMinusDJavaLibraryPathUsingCode

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