Fix Bug 757: Regression of URL to URI conversion (Encoded path not compatible w/ file scheme.

Regression of (Bug 683, Commit b98825eb7cfb61aead4a7dff57471cd2d2c26823).

The URI encoded path cannot be read by File I/O (if file scheme), since the latter
requests an UTF8/16 name, not an URI encoded name (i.e. %20 for space).

The encoded URL is produced if calling 'uri.toURL()' and hence
the new 'IOUtil.toURL(URI)' provides a custom conversion recovering the UTF name via 'new File(uri).getPath()'.

Tested w/
  - synthetic URI/URL coposition (unit test)
  - manual w/ moving 'build' to 'build öä lala' for gluegen, joal and jogl.

+++

Misc.:

- 'URI JarUtil.getURIDirname(URI)'  -> 'URI IOUtil.getDirname(URI)'

++

1 files changed, 2 insertions, 1 deletions

diff --git a/src/java/com/jogamp/common/os/Platform.java b/src/java/com/jogamp/common/os/Platform.java
index 0ae3cbb..9971cf4 100644
--- a/src/java/com/jogamp/common/os/Platform.java
+++ b/src/java/com/jogamp/common/os/Platform.java
@@ -33,6 +33,7 @@ import java.security.AccessController;
 import java.security.PrivilegedAction;
 import java.util.concurrent.TimeUnit;
 
+import com.jogamp.common.util.IOUtil;
 import com.jogamp.common.util.JarUtil;
 import com.jogamp.common.util.ReflectionUtil;
 import com.jogamp.common.util.VersionNumber;
@@ -198,7 +199,7 @@ public class Platform extends PlatformPropsImpl {
                         final String jarName = JarUtil.getJarBasename( platformClassJarURI );
                         final String nativeJarBasename = jarName.substring(0, jarName.indexOf(".jar")); // ".jar" already validated w/ JarUtil.getJarBasename(..)
                         nativeJarName = nativeJarBasename+"-natives-"+PlatformPropsImpl.os_and_arch+".jar";                    
-                        jarUriRoot = JarUtil.getURIDirname( JarUtil.getJarSubURI( platformClassJarURI ) );
+                        jarUriRoot = IOUtil.getDirname( JarUtil.getJarSubURI( platformClassJarURI ) );
                         nativeJarURI = JarUtil.getJarFileURI(jarUriRoot, nativeJarName);
                         TempJarCache.bootstrapNativeLib(Platform.class, libBaseName, nativeJarURI);
                     } catch (Exception e0) {