Fix Bug 857: GlueGen produces erroneous file URI on Windows, which breaks Netbeans's JarURLStreamHandler

- 'URL IOUtil.toURL(URI)'

  - Needs to encode the file-path portion on Windows(*) if exists.
    The file-path here shall only be encoded as follows:
      - backslash -> slash
      - ensure starting with slash

    (*) We perform above action for all OS,
    if 'false == File.separator.equals("/")'

  - Added high verbosity in DEBUG mode to easy debugging
    for future cases ..

- Cleanup URI/URL unit tests, i.e. split URLCompositionTest into:
  - TestIOUtilURICompose
  - TestIOUtilURIHandling (Now covers Bug 857 as well)
  - TestUrisWithAssetHandler
  - TestURIQueryProps

Tested all unit tests manually on GNU/Linux and Windows w/ JRE 7u45

6 files changed, 391 insertions, 241 deletions

diff --git a/src/junit/com/jogamp/common/net/TestURIQueryProps.java b/src/junit/com/jogamp/common/net/TestURIQueryProps.java
new file mode 100644
index 0000000..09cef61
--- /dev/null
+++ b/src/junit/com/jogamp/common/net/TestURIQueryProps.java
@@ -0,0 +1,50 @@
+package com.jogamp.common.net;
+
+import static com.jogamp.common.net.URIDumpUtil.showURI;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.jogamp.junit.util.JunitTracer;
+
+import org.junit.FixMethodOrder;
+import org.junit.runners.MethodSorters;
+
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class TestURIQueryProps extends JunitTracer {
+    
+    @Test
+    public void test() throws IOException, URISyntaxException {
+       final String SCHEME = "camera";
+       final String HOST = "somewhere";
+       final String PATH = "0";
+       String[] args = new String[] {
+           SCHEME+"://"+HOST+"/"+PATH,
+           SCHEME+"://"+HOST+"/"+PATH+"?p1=1",
+       };
+       for(int i=0; i<args.length-1; i+=2) {
+           String uri_s0 = args[i];
+           String uri_s1 = args[i+1];
+           URI uri0 = new URI(uri_s0);
+           URI uri1 = new URI(uri_s1);
+           showURI(uri0);
+           showURI(uri1);
+           URIQueryProps data = URIQueryProps.create(uri1, ';');
+           if(null == data) {
+               System.err.println("Error: NULL: <"+uri_s1+"> -> "+uri1+" -> NULL");
+           } else {
+               URI uri1T = data.appendQuery(uri0);
+               showURI(uri1T);
+               Assert.assertEquals(uri1, uri1T);
+           }
+       }
+    }
+    public static void main(String args[]) throws IOException {
+        String tstname = TestURIQueryProps.class.getName();
+        org.junit.runner.JUnitCore.main(tstname);
+    }    
+}
diff --git a/src/junit/com/jogamp/common/net/TestUrisWithAssetHandler.java b/src/junit/com/jogamp/common/net/TestUrisWithAssetHandler.java
new file mode 100644
index 0000000..6e244eb
--- /dev/null
+++ b/src/junit/com/jogamp/common/net/TestUrisWithAssetHandler.java
@@ -0,0 +1,50 @@
+package com.jogamp.common.net;
+
+import static com.jogamp.common.net.URIDumpUtil.showURX;
+
+import java.io.IOException;
+import java.net.URISyntaxException;
+
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.FixMethodOrder;
+import org.junit.Test;
+import org.junit.runners.MethodSorters;
+
+import com.jogamp.junit.util.JunitTracer;
+
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class TestUrisWithAssetHandler extends JunitTracer {
+
+    @BeforeClass
+    public static void assetRegistration() throws Exception {
+        try {
+            System.err.println("******* Asset URL Stream Handler Registration: PRE");
+            Assert.assertTrue("GenericURLStreamHandlerFactory.register() failed", AssetURLContext.registerHandler(TestUrisWithAssetHandler.class.getClassLoader()));
+            Assert.assertNotNull(AssetURLContext.getRegisteredHandler());
+            System.err.println("******* Asset URL Stream Handler Registration: POST");
+        } catch (Exception e) {
+            setTestSupported(false);
+            throw e;
+        }
+    }
+
+    @Test
+    public void showURLComponents0() throws IOException, URISyntaxException {
+        showURX("file:///rootDir/file1.txt");
+        showURX("file://host/rootDir/file1.txt");
+        showURX("jar:file:/web1/file1.jar!/rootDir/file1.txt");
+        showURX("asset:gluegen-test/info.txt");
+        showURX("asset:/gluegen-test/info.txt");
+        showURX("http://domain.com/web1/index.html?lala=23&lili=24#anchor");
+        showURX("http://domain.com:1234/web1/index.html?lala=23&lili=24#anchor");
+        showURX("asset:jar:file:/web1/file1.jar!/rootDir/file1.txt");
+        showURX("asset:jar:file:/web1/file1.jar!/rootDir/./file1.txt");
+        showURX("asset:jar:file:/web1/file1.jar!/rootDir/dummyParent/../file1.txt");
+    }
+
+    public static void main(String args[]) throws IOException {
+        String tstname = TestUrisWithAssetHandler.class.getName();
+        org.junit.runner.JUnitCore.main(tstname);
+    }
+}
diff --git a/src/junit/com/jogamp/common/net/URIDumpUtil.java b/src/junit/com/jogamp/common/net/URIDumpUtil.java
new file mode 100644
index 0000000..132a19c
--- /dev/null
+++ b/src/junit/com/jogamp/common/net/URIDumpUtil.java
@@ -0,0 +1,49 @@
+package com.jogamp.common.net;
+
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+public class URIDumpUtil {
+    public static void showURX(String urx) throws MalformedURLException, URISyntaxException {
+        System.err.println("XXXXXX "+urx);
+        showURL(new URL(urx));
+        showURI(new URI(urx));
+        System.err.println("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
+    }
+
+    public static void showURL(URL url) {
+        System.err.println("YYYYYY URL "+url);
+        System.err.println("protocol: "+url.getProtocol());
+        System.err.println("auth:     "+url.getAuthority());
+        System.err.println("host:     "+url.getHost());
+        System.err.println("port:     "+url.getPort() + " ( " + url.getDefaultPort() + " ) " );
+        System.err.println("file:     "+url.getFile() + " ( path " + url.getPath() + ", query " + url.getQuery() + " ) " );
+        System.err.println("ref:      "+url.getRef());
+    }
+    public static void showURI(URI uri) {
+        System.err.println("ZZZZZZ URI "+uri);
+        // 1 [scheme:]scheme-specific-part[#fragment]
+        System.err.println("1 scheme:      "+uri.getScheme());
+        System.err.println("1 scheme-part: "+uri.getRawSchemeSpecificPart());
+        System.err.println("1 fragment:    "+uri.getRawFragment());
+
+        // 2 [scheme:][//authority][path][?query][#fragment]
+        System.err.println("2 scheme:      "+uri.getScheme());
+        System.err.println("2 auth:        "+uri.getRawAuthority());
+        System.err.println("2 path:        "+uri.getRawPath());
+        System.err.println("2 query:       "+uri.getRawQuery());
+        System.err.println("2 fragment:    "+uri.getRawFragment());
+
+        // 3 [scheme:][//authority][path][?query][#fragment]
+        //   authority: [user-info@]host[:port]
+        System.err.println("3 scheme:      "+uri.getScheme());
+        System.err.println("3 user-info:   "+uri.getRawUserInfo());
+        System.err.println("3 host:        "+uri.getHost());
+        System.err.println("3 port:        "+uri.getPort());
+        System.err.println("3 path:        "+uri.getRawPath());
+        System.err.println("3 query:       "+uri.getRawQuery());
+        System.err.println("3 fragment:    "+uri.getRawFragment());
+    }
+}
diff --git a/src/junit/com/jogamp/common/net/URLCompositionTest.java b/src/junit/com/jogamp/common/net/URLCompositionTest.java
deleted file mode 100644
index 3083fbd..0000000
--- a/src/junit/com/jogamp/common/net/URLCompositionTest.java
+++ /dev/null
@@ -1,241 +0,0 @@
-package com.jogamp.common.net;
-
-import java.io.File;
-import java.io.IOException;
-import java.net.MalformedURLException;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.net.URL;
-
-import org.junit.Assert;
-import org.junit.BeforeClass;
-import org.junit.Test;
-
-import com.jogamp.common.util.IOUtil;
-import com.jogamp.junit.util.JunitTracer;
-
-import org.junit.FixMethodOrder;
-import org.junit.runners.MethodSorters;
-
-@FixMethodOrder(MethodSorters.NAME_ASCENDING)
-public class URLCompositionTest extends JunitTracer {
-    
-    @BeforeClass
-    public static void assetRegistration() throws Exception {
-        try {
-            System.err.println("******* Asset URL Stream Handler Registration: PRE");
-            Assert.assertTrue("GenericURLStreamHandlerFactory.register() failed", AssetURLContext.registerHandler(URLCompositionTest.class.getClassLoader()));
-            Assert.assertNotNull(AssetURLContext.getRegisteredHandler());
-            System.err.println("******* Asset URL Stream Handler Registration: POST");
-        } catch (Exception e) {
-            setTestSupported(false);
-            throw e;
-        }        
-    }
-    
-    @Test
-    public void showURLComponents0() throws IOException, URISyntaxException {
-        showURX("file:///rootDir/file1.txt");
-        showURX("file://host/rootDir/file1.txt");
-        showURX("jar:file:/web1/file1.jar!/rootDir/file1.txt");
-        showURX("asset:gluegen-test/info.txt");
-        showURX("asset:/gluegen-test/info.txt");
-        showURX("http://domain.com/web1/index.html?lala=23&lili=24#anchor");
-        showURX("http://domain.com:1234/web1/index.html?lala=23&lili=24#anchor");
-        showURX("asset:jar:file:/web1/file1.jar!/rootDir/file1.txt");
-        showURX("asset:jar:file:/web1/file1.jar!/rootDir/./file1.txt");
-        showURX("asset:jar:file:/web1/file1.jar!/rootDir/dummyParent/../file1.txt");
-    }
-    
-    static void showURX(String urx) throws MalformedURLException, URISyntaxException {
-        System.err.println("XXXXXX "+urx);
-        showURL(new URL(urx));
-        showURI(new URI(urx)); 
-        System.err.println("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
-    }
-    
-    static void showURL(URL url) {
-        System.err.println("YYYYYY URL "+url);
-        System.err.println("protocol: "+url.getProtocol());
-        System.err.println("auth:     "+url.getAuthority());
-        System.err.println("host:     "+url.getHost());
-        System.err.println("port:     "+url.getPort() + " ( " + url.getDefaultPort() + " ) " );
-        System.err.println("file:     "+url.getFile() + " ( path " + url.getPath() + ", query " + url.getQuery() + " ) " );
-        System.err.println("ref:      "+url.getRef());
-    }
-    static void showURI(URI uri) {
-        System.err.println("ZZZZZZ URI "+uri);
-        // 1 [scheme:]scheme-specific-part[#fragment]  
-        System.err.println("1 scheme:      "+uri.getScheme());
-        System.err.println("1 scheme-part: "+uri.getRawSchemeSpecificPart());
-        System.err.println("1 fragment:    "+uri.getRawFragment());
-        
-        // 2 [scheme:][//authority][path][?query][#fragment]
-        System.err.println("2 scheme:      "+uri.getScheme());
-        System.err.println("2 auth:        "+uri.getRawAuthority());
-        System.err.println("2 path:        "+uri.getRawPath());
-        System.err.println("2 query:       "+uri.getRawQuery());
-        System.err.println("2 fragment:    "+uri.getRawFragment());
-        
-        // 3 [scheme:][//authority][path][?query][#fragment]
-        //   authority: [user-info@]host[:port]
-        System.err.println("3 scheme:      "+uri.getScheme());
-        System.err.println("3 user-info:   "+uri.getRawUserInfo());
-        System.err.println("3 host:        "+uri.getHost());
-        System.err.println("3 port:        "+uri.getPort());
-        System.err.println("3 path:        "+uri.getRawPath());
-        System.err.println("3 query:       "+uri.getRawQuery());
-        System.err.println("3 fragment:    "+uri.getRawFragment());
-    }    
-    
-    
-    @Test
-    public void showURLComponents1() throws IOException, URISyntaxException {
-        testURI2URL("jar:file:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class",
-                    "jar:file:/usr/local/projects/JOGL/gluegen/build-x86_64 öä lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class", true);
-        
-        testURI2URL("jar:file:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/",
-                    "jar:file:/usr/local/projects/JOGL/gluegen/build-x86_64 öä lala/gluegen-rt.jar!/", true);
-        
-        testURI2URL("file:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar", 
-                    "file:/usr/local/projects/JOGL/gluegen/build-x86_64 öä lala/gluegen-rt.jar", true);
-        
-        testURI2URL("jar:http:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class",
-                    "jar:http:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class", false);
-        
-        testURI2URL("jar:http:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/",
-                    "jar:http:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/", false);
-        
-        testURI2URL("http:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar", 
-                    "http:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar", false);
-        
-        testURI2URL("jar:ftp:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class",
-                    "jar:ftp:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class", false);
-                
-        testURI2URL("ftp:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar",
-                    "ftp:/usr/local/projects/JOGL/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar", false);
-    }
-    
-    void testURI2URL(String source, String expected, boolean usesFile) throws IOException, URISyntaxException {
-        System.err.println("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
-        final URI uri0 = new URI(source);
-        System.err.println("uri: "+uri0.toString());
-        
-        final URL url0 = IOUtil.toURL(uri0);
-        final String actual = url0.toExternalForm();
-        System.err.println("url: "+actual);
-        final String expectedOS;
-        if( usesFile ) {
-            final int jarSepI = expected.lastIndexOf("!");
-            final int replB = 0 <= jarSepI ? jarSepI : expected.length();
-            final String partA = expected.substring(0, replB).replace('/', File.separatorChar);
-            final String partB = expected.substring(replB);
-            expectedOS = partA+partB; 
-        } else {
-            expectedOS = expected;
-        }
-        System.err.println("expected: orig "+expected+", OS "+expectedOS);
-        final boolean equalsA = expected.equals(actual);
-        final boolean equalsB = expectedOS.equals(actual);
-        Assert.assertTrue("No match, neither expected orig or OS w/ url", equalsA || equalsB);
-        System.err.println("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
-    }
-    
-    @Test
-    public void showURLComponents2() throws IOException, URISyntaxException {
-        testURNCompositioning("file:///rootDir/file1.txt");
-        testURNCompositioning("file://host/rootDir/file1.txt");
-        testURNCompositioning("jar:file:/web1/file1.jar!/rootDir/file1.txt");
-        testURNCompositioning("asset:gluegen-test/info.txt");
-        testURNCompositioning("asset:/gluegen-test/info.txt");
-        testURNCompositioning("http://domain.com/web1/index.html?lala=23&lili=24#anchor");
-        testURNCompositioning("http://domain.com:1234/web1/index.html?lala=23&lili=24#anchor");
-        
-        final URI file1URI = new URI("asset:jar:file:/web1/file1.jar!/rootDir/file1.txt");
-        testURICompositioning(file1URI);
-        testURICompositioning(file1URI, new URI("asset:jar:file:/web1/file1.jar!/rootDir/./file1.txt"));
-        testURICompositioning(file1URI, new URI("asset:jar:file:/web1/file1.jar!/rootDir/dummyParent/../file1.txt"));
-        
-        final URL file1URL = new URL("asset:jar:file:/web1/file1.jar!/rootDir/file1.txt");
-        testURLCompositioning(file1URL);
-        testURLCompositioning(file1URL, new URL("asset:jar:file:/web1/file1.jar!/rootDir/./file1.txt"));
-        testURLCompositioning(file1URL, new URL("asset:jar:file:/web1/file1.jar!/rootDir/dummyParent/../file1.txt"));
-    }
-        
-    static void testURNCompositioning(String urn) throws MalformedURLException, URISyntaxException {
-        testURICompositioning( new URI(urn) );
-        testURLCompositioning( new URL(urn) );
-    }
-    
-    static void testURICompositioning(URI uri) throws MalformedURLException, URISyntaxException {    
-        testURICompositioning(uri, uri);
-    }    
-    static void testURICompositioning(URI refURI, URI uri1) throws MalformedURLException, URISyntaxException {
-        final String scheme = uri1.getScheme();
-        final String ssp = uri1.getRawSchemeSpecificPart();
-        final String fragment = uri1.getRawFragment();
-        
-        System.err.println("scheme <"+scheme+">, ssp <"+ssp+">, fragment <"+fragment+">");
-        final URI uri2 = IOUtil.compose(scheme, ssp, null, fragment);
-        
-        System.err.println("URL-equals: "+refURI.equals(uri2));
-        System.err.println("URL-ref   : <"+refURI+">");
-        System.err.println("URL-orig  : <"+uri1+">");
-        System.err.println("URL-comp  : <"+uri2+">");
-        Assert.assertEquals(refURI, uri2);
-    }
-    
-    static void testURLCompositioning(URL url) throws MalformedURLException, URISyntaxException {    
-        testURLCompositioning(url, url);
-    }
-    static void testURLCompositioning(URL refURL, URL url1) throws MalformedURLException, URISyntaxException {
-        final URI uri1 = url1.toURI();
-        final String scheme = uri1.getScheme();
-        final String ssp = uri1.getRawSchemeSpecificPart();
-        final String fragment = uri1.getRawFragment();
-        
-        System.err.println("scheme <"+scheme+">, ssp <"+ssp+">, fragment <"+fragment+">");
-        final URI uri2 = IOUtil.compose(scheme, ssp, null, fragment);
-                
-        System.err.println("URL-equals(1): "+refURL.toURI().equals(uri2));
-        System.err.println("URL-equals(2): "+refURL.equals(uri2.toURL()));
-        System.err.println("URL-same  : "+refURL.sameFile(uri2.toURL()));
-        System.err.println("URL-ref   : <"+refURL+">");
-        System.err.println("URL-orig  : <"+url1+">");
-        System.err.println("URL-comp  : <"+uri2+">");
-        Assert.assertEquals(refURL.toURI(), uri2);
-        Assert.assertEquals(refURL, uri2.toURL());
-        Assert.assertTrue(refURL.sameFile(uri2.toURL()));
-    }
-    
-    @Test
-    public void testURLProps() throws IOException, URISyntaxException {
-       final String SCHEME = "camera";
-       final String HOST = "somewhere";
-       final String PATH = "0";
-       String[] args = new String[] {
-           SCHEME+"://"+HOST+"/"+PATH,
-           SCHEME+"://"+HOST+"/"+PATH+"?p1=1",
-       };
-       for(int i=0; i<args.length-1; i+=2) {
-           String uri_s0 = args[i];
-           String uri_s1 = args[i+1];
-           URI uri0 = new URI(uri_s0);
-           URI uri1 = new URI(uri_s1);
-           showURI(uri0);
-           showURI(uri1);
-           URIQueryProps data = URIQueryProps.create(uri1, ';');
-           if(null == data) {
-               System.err.println("Error: NULL: <"+uri_s1+"> -> "+uri1+" -> NULL");
-           } else {
-               URI uri1T = data.appendQuery(uri0);
-               showURI(uri1T);
-               Assert.assertEquals(uri1, uri1T);
-           }
-       }
-    }
-    public static void main(String args[]) throws IOException {
-        String tstname = URLCompositionTest.class.getName();
-        org.junit.runner.JUnitCore.main(tstname);
-    }    
-}
diff --git a/src/junit/com/jogamp/common/util/TestIOUtilURICompose.java b/src/junit/com/jogamp/common/util/TestIOUtilURICompose.java
new file mode 100644
index 0000000..0809599
--- /dev/null
+++ b/src/junit/com/jogamp/common/util/TestIOUtilURICompose.java
@@ -0,0 +1,92 @@
+package com.jogamp.common.util;
+
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.jogamp.common.util.IOUtil;
+import com.jogamp.junit.util.JunitTracer;
+
+import org.junit.FixMethodOrder;
+import org.junit.runners.MethodSorters;
+
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class TestIOUtilURICompose extends JunitTracer {
+
+    @Test
+    public void test01URLCompositioning() throws IOException, URISyntaxException {
+        testURNCompositioning("file:///rootDir/file1.txt");
+        testURNCompositioning("file://host/rootDir/file1.txt");
+        testURNCompositioning("jar:file:/web1/file1.jar!/rootDir/file1.txt");
+        testURNCompositioning("asset:gluegen-test/info.txt");
+        testURNCompositioning("asset:/gluegen-test/info.txt");
+        testURNCompositioning("http://domain.com/web1/index.html?lala=23&lili=24#anchor");
+        testURNCompositioning("http://domain.com:1234/web1/index.html?lala=23&lili=24#anchor");
+
+        final URI file1URI = new URI("asset:jar:file:/web1/file1.jar!/rootDir/file1.txt");
+        testURICompositioning(file1URI);
+        testURICompositioning(file1URI, new URI("asset:jar:file:/web1/file1.jar!/rootDir/./file1.txt"));
+        testURICompositioning(file1URI, new URI("asset:jar:file:/web1/file1.jar!/rootDir/dummyParent/../file1.txt"));
+
+        final URL file1URL = new URL("asset:jar:file:/web1/file1.jar!/rootDir/file1.txt");
+        testURLCompositioning(file1URL);
+        testURLCompositioning(file1URL, new URL("asset:jar:file:/web1/file1.jar!/rootDir/./file1.txt"));
+        testURLCompositioning(file1URL, new URL("asset:jar:file:/web1/file1.jar!/rootDir/dummyParent/../file1.txt"));
+    }
+
+    static void testURNCompositioning(String urn) throws MalformedURLException, URISyntaxException {
+        testURICompositioning( new URI(urn) );
+        testURLCompositioning( new URL(urn) );
+    }
+
+    static void testURICompositioning(URI uri) throws MalformedURLException, URISyntaxException {
+        testURICompositioning(uri, uri);
+    }
+    static void testURICompositioning(URI refURI, URI uri1) throws MalformedURLException, URISyntaxException {
+        final String scheme = uri1.getScheme();
+        final String ssp = uri1.getRawSchemeSpecificPart();
+        final String fragment = uri1.getRawFragment();
+
+        System.err.println("scheme <"+scheme+">, ssp <"+ssp+">, fragment <"+fragment+">");
+        final URI uri2 = IOUtil.compose(scheme, ssp, null, fragment);
+
+        System.err.println("URL-equals: "+refURI.equals(uri2));
+        System.err.println("URL-ref   : <"+refURI+">");
+        System.err.println("URL-orig  : <"+uri1+">");
+        System.err.println("URL-comp  : <"+uri2+">");
+        Assert.assertEquals(refURI, uri2);
+    }
+
+    static void testURLCompositioning(URL url) throws MalformedURLException, URISyntaxException {
+        testURLCompositioning(url, url);
+    }
+    static void testURLCompositioning(URL refURL, URL url1) throws MalformedURLException, URISyntaxException {
+        final URI uri1 = url1.toURI();
+        final String scheme = uri1.getScheme();
+        final String ssp = uri1.getRawSchemeSpecificPart();
+        final String fragment = uri1.getRawFragment();
+
+        System.err.println("scheme <"+scheme+">, ssp <"+ssp+">, fragment <"+fragment+">");
+        final URI uri2 = IOUtil.compose(scheme, ssp, null, fragment);
+
+        System.err.println("URL-equals(1): "+refURL.toURI().equals(uri2));
+        System.err.println("URL-equals(2): "+refURL.equals(uri2.toURL()));
+        System.err.println("URL-same  : "+refURL.sameFile(uri2.toURL()));
+        System.err.println("URL-ref   : <"+refURL+">");
+        System.err.println("URL-orig  : <"+url1+">");
+        System.err.println("URL-comp  : <"+uri2+">");
+        Assert.assertEquals(refURL.toURI(), uri2);
+        Assert.assertEquals(refURL, uri2.toURL());
+        Assert.assertTrue(refURL.sameFile(uri2.toURL()));
+    }
+
+    public static void main(String args[]) throws IOException {
+        String tstname = TestIOUtilURICompose.class.getName();
+        org.junit.runner.JUnitCore.main(tstname);
+    }
+}
diff --git a/src/junit/com/jogamp/common/util/TestIOUtilURIHandling.java b/src/junit/com/jogamp/common/util/TestIOUtilURIHandling.java
new file mode 100644
index 0000000..73f6ce7
--- /dev/null
+++ b/src/junit/com/jogamp/common/util/TestIOUtilURIHandling.java
@@ -0,0 +1,150 @@
+package com.jogamp.common.util;
+
+import static com.jogamp.common.net.URIDumpUtil.showURX;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.net.URLConnection;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.jogamp.common.os.Platform;
+import com.jogamp.common.util.IOUtil;
+import com.jogamp.junit.util.JunitTracer;
+
+import org.junit.FixMethodOrder;
+import org.junit.runners.MethodSorters;
+
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class TestIOUtilURIHandling extends JunitTracer {
+
+    static final String[][] uriHttpSArray = new String[][] {
+        new String[] {"http://localhost/gluegen/build-x86_64/gluegen-rt.jar",
+                      "http://localhost/gluegen/build-x86_64/gluegen-rt.jar"},
+
+        new String[] {"http://localhost/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar",
+                      "http://localhost/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar"
+                   // "http://localhost/gluegen/build-x86_64 öä lala/gluegen-rt.jar"
+                     },
+
+        new String[] {"jar:http://localhost/gluegen/build-x86_64/gluegen-rt.jar!/",
+                      "jar:http://localhost/gluegen/build-x86_64/gluegen-rt.jar!/" },
+
+        new String[] {"jar:http://localhost/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/",
+                      "jar:http://localhost/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/"
+                   // "jar:http://localhost/gluegen/build-x86_64 öä lala/gluegen-rt.jar!/"
+                     },
+
+        new String[] {"jar:http://localhost/gluegen/build-x86_64/gluegen-rt.jar!/com/jogamp/common/os/Platform.class",
+                      "jar:http://localhost/gluegen/build-x86_64/gluegen-rt.jar!/com/jogamp/common/os/Platform.class" },
+
+        new String[] {"jar:http://localhost/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class",
+                      "jar:http://localhost/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class"
+                   // "jar:http://localhost/gluegen/build-x86_64 öä lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class"
+                     },
+    };
+
+    static final String[][] uriFileSArrayUnix = new String[][] {
+        new String[] {"file:/gluegen/build-x86_64/gluegen-rt.jar",
+                      "file:/gluegen/build-x86_64/gluegen-rt.jar"},
+
+        new String[] {"file:/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar",
+                      "file:/gluegen/build-x86_64 öä lala/gluegen-rt.jar"},
+
+        new String[] {"jar:file:/gluegen/build-x86_64/gluegen-rt.jar!/",
+                      "jar:file:/gluegen/build-x86_64/gluegen-rt.jar!/" },
+
+        new String[] {"jar:file:/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/",
+                      "jar:file:/gluegen/build-x86_64 öä lala/gluegen-rt.jar!/" },
+
+        new String[] {"jar:file:/gluegen/build-x86_64/gluegen-rt.jar!/com/jogamp/common/os/Platform.class",
+                      "jar:file:/gluegen/build-x86_64/gluegen-rt.jar!/com/jogamp/common/os/Platform.class" },
+
+        new String[] {"jar:file:/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class",
+                      "jar:file:/gluegen/build-x86_64 öä lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class" },
+    };
+
+    static final String[][] uriFileSArrayWindows = new String[][] {
+        new String[] {"file:/C:/gluegen/build-x86_64/gluegen-rt.jar",
+                      "file:/C:/gluegen/build-x86_64/gluegen-rt.jar"},
+
+        new String[] {"file:/C:/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar",
+                      "file:/C:/gluegen/build-x86_64 öä lala/gluegen-rt.jar"},
+
+        new String[] {"jar:file:/C:/gluegen/build-x86_64/gluegen-rt.jar!/",
+                      "jar:file:/C:/gluegen/build-x86_64/gluegen-rt.jar!/" },
+
+        new String[] {"jar:file:/C:/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/",
+                      "jar:file:/C:/gluegen/build-x86_64 öä lala/gluegen-rt.jar!/" },
+
+        new String[] {"jar:file:/C:/gluegen/build-x86_64/gluegen-rt.jar!/com/jogamp/common/os/Platform.class",
+                      "jar:file:/C:/gluegen/build-x86_64/gluegen-rt.jar!/com/jogamp/common/os/Platform.class" },
+
+        new String[] {"jar:file:/C:/gluegen/build-x86_64%20%c3%b6%c3%a4%20lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class",
+                      "jar:file:/C:/gluegen/build-x86_64 öä lala/gluegen-rt.jar!/com/jogamp/common/os/Platform.class" },
+    };
+
+    @Test
+    public void test01HttpURI2URL() throws IOException, URISyntaxException {
+        testURI2URL(uriHttpSArray, false /*usesFile*/, false /*matchOS*/);
+    }
+
+    @Test
+    public void test02FileUnixURI2URL() throws IOException, URISyntaxException {
+        testURI2URL(uriFileSArrayUnix, true /*usesFile*/, Platform.OSType.WINDOWS != Platform.getOSType() /*matchOS*/);
+    }
+
+    @Test
+    public void test02FileWindowsURI2URL() throws IOException, URISyntaxException {
+        testURI2URL(uriFileSArrayWindows, true /*usesFile*/, Platform.OSType.WINDOWS == Platform.getOSType() /*matchOS*/);
+    }
+
+    static void testURI2URL(String[][] uriSArray, boolean usesFile, boolean matchOS) throws IOException, URISyntaxException {
+        for(int i=0; i<uriSArray.length; i++) {
+            final String[] uriSPair = uriSArray[i];
+            final String uriSource = uriSPair[0];
+            final String uriExpected= uriSPair[1];
+            System.err.println("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
+            showURX(uriSource);
+            testURI2URL(uriSource, uriExpected, usesFile, matchOS);
+            System.err.println("XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
+        }
+    }
+
+    static void testURI2URL(String source, String expected, boolean usesFile, boolean matchOS) throws IOException, URISyntaxException {
+        final URI uri0 = new URI(source);
+        System.err.println("uri: "+uri0.toString());
+
+        final URL actualUrl = IOUtil.toURL(uri0);
+        final String actualUrlS = actualUrl.toExternalForm();
+        System.err.println("url: "+actualUrlS);
+        final boolean equalsA = expected.equals(actualUrlS);
+        System.err.println("expected___: "+expected+" - ok "+equalsA);
+        System.err.println("actual     : "+actualUrlS);
+        Assert.assertTrue("No match, expected    w/ orig url", equalsA);
+
+        // now test open ..
+        Throwable t = null;
+        URLConnection con = null;
+        try {
+            con = actualUrl.openConnection();
+        } catch (Throwable _t) {
+            t = _t;
+        }
+        if( null != t ) {
+            System.err.println("XXX: "+t.getClass().getName()+": "+t.getMessage());
+            t.printStackTrace();
+        } else {
+            System.err.println("XXX: No openConnection() failure");
+            System.err.println("XXX: "+con);
+        }
+    }
+
+    public static void main(String args[]) throws IOException {
+        String tstname = TestIOUtilURIHandling.class.getName();
+        org.junit.runner.JUnitCore.main(tstname);
+    }
+}