Add 'asset' URLConnection; IOUtil uses URLConnection / incr. effeciency; Android ClassLoaderUtil cleanup;

- Add 'asset' URLConnection
  - Please read API doc 'PiggybackURLConnection' and 'AssetURLConnection'

  - Solves generic resource handling where platform locations may differ,
    ie ClassLoader lookup on Android in the 'assets/' subfolder.

  - New Android 'AssetDexClassLoader' uses 'assets/' folder for findResource(..)

  - aapt.signed (our APK ant task)
    - uses 'assets/' folder

    - adds the 'assetsdir' attribute allowing to copy other assets into the APK

- IOUtil uses URLConnection / incr. effeciency
  - using URLConnection on all getResource(..) since URL
    is connected anyways for validation and URLConnection can be used by caller right away

  - String getRelativeOf(URL, String) -> URL getRelativeOf(URL, String)
    - preserves scheme, authority, etc
    - simple parentOf handling, more efficient

  - reusing new 'asset' protocol impl.

- Android ClassLoaderUtil cleanup;
  - Use createClassLoader(..) impl for build-in static jogamp and user APKs,
    which removes code redundancy

Tests: New code path, especially 'assets' are covered by new unit tests, no regressions on Linux.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/java/com/jogamp/common/os/AndroidVersion.java b/src/java/com/jogamp/common/os/AndroidVersion.java
index b577631..8886273 100644
--- a/src/java/com/jogamp/common/os/AndroidVersion.java
+++ b/src/java/com/jogamp/common/os/AndroidVersion.java
@@ -32,9 +32,9 @@ public class AndroidVersion {
     
     static {
         final ClassLoader cl = AndroidVersion.class.getClassLoader();
-        Class abvClass = null;
+        Class<?> abvClass = null;
         Object abvObject= null;
-        Class abvcClass = null;
+        Class<?> abvcClass = null;
         Object abvcObject= null;
         try {
             abvClass = ReflectionUtil.getClass(androidBuildVersion, true, cl);
@@ -50,7 +50,7 @@ public class AndroidVersion {
             SDK_INT = getInt(abvClass, abvObject, "SDK_INT");
             VERSION_CODES = getVersionCodes(abvcClass, abvcObject);
             String sdk_name = VERSION_CODES.get(new Integer(SDK_INT));
-            SDK_NAME = ( null != sdk_name ) ? sdk_name : "SDK_"+SDK_INT ; 
+            SDK_NAME = ( null != sdk_name ) ? sdk_name : "SDK_"+SDK_INT ;
         } else {
             CODENAME = null;
             INCREMENTAL = null;
@@ -61,7 +61,7 @@ public class AndroidVersion {
         }
     }
     
-    private static final Map<Integer, String> getVersionCodes(Class cls, Object obj) {
+    private static final Map<Integer, String> getVersionCodes(Class<?> cls, Object obj) {
         HashMap<Integer, String> map = new HashMap<Integer, String>();
         Field[] fields = cls.getFields();
         for(int i=0; i<fields.length; i++) {
@@ -75,7 +75,7 @@ public class AndroidVersion {
         return map;
     }
     
-    private static final String getString(Class cls, Object obj, String name) {
+    private static final String getString(Class<?> cls, Object obj, String name) {
         try {
             Field f = cls.getField(name);
             return (String) f.get(obj);
@@ -83,7 +83,7 @@ public class AndroidVersion {
         return null;
     }
 
-    private static final int getInt(Class cls, Object obj, String name) {
+    private static final int getInt(Class<?> cls, Object obj, String name) {
         try {
             Field f = cls.getField(name);
             return f.getInt(obj);