Hi,

compiling bsd-port with openjdk7 results in a jar binary that does eg: % /usr/local/bsd-port/build/bsd-amd64/j2sdk-image/bin/jar xf rt-closed.jar @foo java.lang.NullPointerException        at java.lang.String.startsWith(String.java:1433)                at java.lang.String.startsWith(String.java:1462)                at sun.tools.jar.Main.extractFile(Main.java:879)                at sun.tools.jar.Main.extract(Main.java:860)                at sun.tools.jar.Main.run(Main.java:245)                at sun.tools.jar.Main.main(Main.java:1133)

This is due to the new extract method not setting cwd, which makes the bsd-port extractFile patently unhappy. If one adds: --- snip --- --- a/src/share/classes/sun/tools/jar/Main.java Tue Mar 10 09:04:32 2009 -0700 +++ b/src/share/classes/sun/tools/jar/Main.java Sat May 02 17:50:29 2009 +0000 @@ -845,6 +845,17 @@      * Extracts specified entries from JAR file, via ZipFile.      */     void extract(String fname, String files[]) throws IOException { +        // Current working directory + +        cwd = System.getProperty("user.dir"); +        if (cwd == null) { +            fatalError(getMsg("error.no.cwd")); +        } +        cwd = (new File(cwd)).getCanonicalPath(); +        if (!cwd.endsWith(File.separator)) { +            cwd += File.separator; +        } +         ZipFile zf = new ZipFile(fname);         Set<ZipEntry> dirs = newDirSet();         Enumeration<? extends ZipEntry> zes = zf.entries();

--- snip --- all is well (tm).

best regards,        spz