* Add new flag to Platform enum which specifies if its 32-bit platform or 64-bit.

 * Add new but currently unused native extraction engine which supports user-specified native libraries as well as deferred extraction of libraries.

jme3-core/src/main/java/com/jme3/system/Platform.java

@@ -1,100 +1,113 @@
-/*
- * Copyright (c) 2009-2012 jMonkeyEngine
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
- *   may be used to endorse or promote products derived from this software
- *   without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-package com.jme3.system;
-
-public enum Platform {
-
-    /**
-     * Microsoft Windows 32 bit
-     */
-    Windows32,
-    
-    /**
-     * Microsoft Windows 64 bit
-     */
-    Windows64,
-    
-    /**
-     * Linux 32 bit
-     */
-    Linux32,
-    
-    /**
-     * Linux 64 bit
-     */
-    Linux64,
-    
-    /**
-     * Apple Mac OS X 32 bit
-     */
-    MacOSX32,
-    
-    /**
-     * Apple Mac OS X 64 bit
-     */
-    MacOSX64,
-    
-    /**
-     * Apple Mac OS X 32 bit PowerPC
-     */
-    MacOSX_PPC32,
-    
-    /**
-     * Apple Mac OS X 64 bit PowerPC
-     */
-    MacOSX_PPC64,
-    
-    /**
-     * Android ARM5
-     */
-    Android_ARM5,
-    
-    /**
-     * Android ARM6
-     */
-    Android_ARM6,
-
-    /**
-     * Android ARM7
-     */
-    Android_ARM7,
-
-    /**
-     * Android x86
-     */
-    Android_X86,
-    
-    iOS_X86,
-    
-    iOS_ARM;
-    
+/*
+ * Copyright (c) 2009-2012 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.system;
+
+public enum Platform {
+
+    /**
+     * Microsoft Windows 32 bit
+     */
+    Windows32,
+    
+    /**
+     * Microsoft Windows 64 bit
+     */
+    Windows64(true),
+    
+    /**
+     * Linux 32 bit
+     */
+    Linux32,
+    
+    /**
+     * Linux 64 bit
+     */
+    Linux64(true),
+    
+    /**
+     * Apple Mac OS X 32 bit
+     */
+    MacOSX32,
+    
+    /**
+     * Apple Mac OS X 64 bit
+     */
+    MacOSX64(true),
+    
+    /**
+     * Apple Mac OS X 32 bit PowerPC
+     */
+    MacOSX_PPC32,
+    
+    /**
+     * Apple Mac OS X 64 bit PowerPC
+     */
+    MacOSX_PPC64(true),
+    
+    /**
+     * Android ARM5
+     */
+    Android_ARM5,
+    
+    /**
+     * Android ARM6
+     */
+    Android_ARM6,
+
+    /**
+     * Android ARM7
+     */
+    Android_ARM7,
+
+    /**
+     * Android x86
+     */
+    Android_X86,
+    
+    iOS_X86,
+    
+    iOS_ARM;
+    
+    private final boolean is64bit;
+    
+    public boolean is64Bit() {
+        return is64bit;
+    }
+    
+    private Platform(boolean is64bit) {
+        this.is64bit = is64bit;
+    }
+    
+    private Platform() {
+        this(false);
+    }
 }

jme3-desktop/src/main/java/com/jme3/system/NativeLibrary.java

@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2009-2012 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.system;
+
+/**
+ * Holds information about a native library for a particular platform.
+ * 
+ * @author Kirill Vainer
+ */
+final class NativeLibrary {
+    
+    private final String name;
+    private final Platform platform;
+    private final boolean isJNI;
+    private final String pathInNativesJar;
+
+    /**
+     * Key for map to find a library for a name and platform.
+     */
+    static final class Key {
+
+        private final String name;
+        private final Platform platform;
+
+        public Key(String name, Platform platform) {
+            this.name = name;
+            this.platform = platform;
+        }
+
+        @Override
+        public int hashCode() {
+            int hash = 5;
+            hash = 79 * hash + this.name.hashCode();
+            hash = 79 * hash + this.platform.hashCode();
+            return hash;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            final Key other = (Key) obj;
+            if (!this.name.equals(other.name)) {
+                return false;
+            }
+            if (this.platform != other.platform) {
+                return false;
+            }
+            return true;
+        }
+    }
+    
+    /**
+     * The name of the library. 
+     * Generally only used as a way to uniquely identify the library.
+     * 
+     * @return name of the library.
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * The OS + architecture combination for which this library
+     * should be extracted.
+     * 
+     * @return platform associated to this native library
+     */
+    public Platform getPlatform() {
+        return platform;
+    }
+
+    /**
+     * If this library is a JNI library.
+     * 
+     * @return True if JNI library, false if native code (e.g. C/C++) library.
+     */
+    public boolean isJNI() {
+        return isJNI;
+    }
+
+    /**
+     * Path inside the natives jar or classpath where the library is located.
+     * 
+     * This library must be compatible with the {@link #getPlatform() platform}
+     * which this library is associated with.
+     * 
+     * @return path to the library in the classpath
+     */
+    public String getPathInNativesJar() {
+        return pathInNativesJar;
+    }
+
+    /**
+     * Create a new NativeLibrary.
+     */
+    public NativeLibrary(String name, Platform platform, String pathInNativesJar, boolean isJNI) {
+        this.name = name;
+        this.platform = platform;
+        this.pathInNativesJar = pathInNativesJar;
+        this.isJNI = isJNI;
+    }
+
+    /**
+     * Create a new NativeLibrary.
+     */
+    public NativeLibrary(String name, Platform platform, String pathInNativesJar) {
+        this(name, platform, pathInNativesJar, true);
+    }
+}

jme3-desktop/src/main/java/com/jme3/system/NativeLibraryLoader.java

@@ -0,0 +1,410 @@
+/*
+ * Copyright (c) 2009-2012 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.system;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.HashMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Utility class to register, extract, and load native libraries.
+ * <br>
+ * Register your own libraries via the 
+ * {@link #registerNativeLibrary(java.lang.String, com.jme3.system.Platform, java.lang.String, boolean) }
+ * method, for each platform. 
+ * You can then extract this library (depending on platform), by
+ * using {@link #loadNativeLibrary(java.lang.String, boolean) }.
+ * <br>
+ * Example:<br>
+ * <code><pre>
+ * NativeLibraryLoader.registerNativeLibrary("mystuff", Platform.Windows32, "native/windows/mystuff.dll");
+ * NativeLibraryLoader.registerNativeLibrary("mystuff", Platform.Windows64, "native/windows/mystuff64.dll");
+ * NativeLibraryLoader.registerNativeLibrary("mystuff", Platform.Linux32,   "native/linux/libmystuff.so");
+ * NativeLibraryLoader.registerNativeLibrary("mystuff", Platform.Linux64,   "native/linux/libmystuff64.so");
+ * NativeLibraryLoader.registerNativeLibrary("mystuff", Platform.MacOSX32,  "native/macosx/libmystuff.jnilib");
+ * NativeLibraryLoader.registerNativeLibrary("mystuff", Platform.MacOSX64,  "native/macosx/libmystuff.jnilib");
+ * </pre></code>
+ * <br>
+ * This will register the library. Load it via: <br>
+ * <code><pre>
+ * NativeLibraryLoader.loadNativeLibrary("mystuff", true);
+ * </pre></code>
+ * It will load the right library automatically based on the platform.
+ * 
+ * @author Kirill Vainer
+ */
+public final class NativeLibraryLoader {
+    
+    private static final Logger logger = Logger.getLogger(NativeLibraryLoader.class.getName());
+    private static final byte[] buf = new byte[1024 * 100];
+    private static File extractionFolderOverride = null;
+    private static File extractionFolder = null;
+    
+    private static final HashMap<NativeLibrary.Key, NativeLibrary> nativeLibraryMap
+            = new HashMap<NativeLibrary.Key, NativeLibrary>();
+    
+    /**
+     * Register a new known library.
+     * 
+     * This simply registers a known library, the actual extraction and loading
+     * is performed by calling {@link #loadNativeLibrary(java.lang.String, boolean) }.
+     * 
+     * @param name The name / ID of the library (not OS or architecture specific).
+     * @param platform The platform for which the in-natives-jar path has 
+     * been specified for.
+     * @param path The path inside the natives-jar or classpath
+     * corresponding to this library. Must be compatible with the platform 
+     * argument.
+     * @param isJNI True if this is a JNI library, false if this is a regular
+     * native (C/C++) library.
+     */
+    public static void registerNativeLibrary(String name, Platform platform,
+            String path, boolean isJNI) {
+        nativeLibraryMap.put(new NativeLibrary.Key(name, platform),
+                new NativeLibrary(name, platform, path, isJNI));
+    }
+    
+    /**
+     * Register a new known JNI library.
+     * 
+     * This simply registers a known library, the actual extraction and loading
+     * is performed by calling {@link #loadNativeLibrary(java.lang.String, boolean) }.
+     * 
+     * This method should be called several times for each library name, 
+     * each time specifying a different platform + path combination.
+     * 
+     * @param name The name / ID of the library (not OS or architecture specific).
+     * @param platform The platform for which the in-natives-jar path has 
+     * been specified for.
+     * @param path The path inside the natives-jar or classpath
+     * corresponding to this library. Must be compatible with the platform 
+     * argument.
+     */
+    public static void registerNativeLibrary(String name, Platform platform,
+            String path) {
+        registerNativeLibrary(name, platform, path, true);
+    }
+    
+    static {
+        // LWJGL
+        registerNativeLibrary("lwjgl", Platform.Windows32, "native/windows/lwjgl.dll");
+        registerNativeLibrary("lwjgl", Platform.Windows64, "native/windows/lwjgl64.dll");
+        registerNativeLibrary("lwjgl", Platform.Linux32,   "native/linux/liblwjgl.so");
+        registerNativeLibrary("lwjgl", Platform.Linux64,   "native/linux/liblwjgl64.so");
+        registerNativeLibrary("lwjgl", Platform.MacOSX32,  "native/macosx/liblwjgl.jnilib");
+        registerNativeLibrary("lwjgl", Platform.MacOSX64,  "native/macosx/liblwjgl.jnilib");
+        
+        // OpenAL
+        registerNativeLibrary("openal", Platform.Windows32, "native/windows/OpenAL32.dll", false);
+        registerNativeLibrary("openal", Platform.Windows64, "native/windows/OpenAL64.dll", false);
+        registerNativeLibrary("openal", Platform.Linux32,   "native/linux/libopenal.so", false);
+        registerNativeLibrary("openal", Platform.Linux64,   "native/linux/libopenal64.so", false);
+        registerNativeLibrary("openal", Platform.MacOSX32,  "native/macosx/openal.dylib", false);
+        registerNativeLibrary("openal", Platform.MacOSX64,  "native/macosx/openal.dylib", false);
+        
+        // BulletJme
+        registerNativeLibrary("bulletjme", Platform.Windows32, "native/windows/x86/bulletjme.dll", false);
+        registerNativeLibrary("bulletjme", Platform.Windows64, "native/windows/x86_64/bulletjme.dll", false);
+        registerNativeLibrary("bulletjme", Platform.Linux32,   "native/linux/x86/libbulletjme.so", false);
+        registerNativeLibrary("bulletjme", Platform.Linux64,   "native/linux/x86_64/libbulletjme.so", false);
+        registerNativeLibrary("bulletjme", Platform.MacOSX32,  "native/macosx/x86/libbulletjme.jnilib", false);
+        registerNativeLibrary("bulletjme", Platform.MacOSX64,  "native/macosx/x86_64/libbulletjme.jnilib", false);
+        
+        // JInput
+        registerNativeLibrary("jinput", Platform.Windows32, "native/windows/jinput-raw.dll");
+        registerNativeLibrary("jinput", Platform.Windows64, "native/windows/jinput-raw_64.dll");
+        registerNativeLibrary("jinput", Platform.Linux32,   "native/windows/libjinput-linux.so");
+        registerNativeLibrary("jinput", Platform.Linux64,   "native/windows/libjinput-linux64.so");
+        registerNativeLibrary("jinput", Platform.MacOSX32,  "native/macosx/libjinput-osx.jnilib");
+        registerNativeLibrary("jinput", Platform.MacOSX64,  "native/macosx/libjinput-osx.jnilib");
+        
+        // JInput Auxiliary (only required on Windows)
+        registerNativeLibrary("jinput-dx8", Platform.Windows32, "native/windows/jinput-dx8.dll");
+        registerNativeLibrary("jinput-dx8", Platform.Windows64, "native/windows/jinput-dx8_64.dll");
+        registerNativeLibrary("jinput-dx8", Platform.Linux32,   null);
+        registerNativeLibrary("jinput-dx8", Platform.Linux64,   null);
+        registerNativeLibrary("jinput-dx8", Platform.MacOSX32,  null);
+        registerNativeLibrary("jinput-dx8", Platform.MacOSX64,  null);
+    }
+    
+    private NativeLibraryLoader() {
+    }
+    
+    /**
+     * Specify a custom location where native libraries should
+     * be extracted to. Ensure this is a unique path not used
+     * by other applications to extract their libraries.
+     * 
+     * @param path Path where to extract native libraries.
+     */
+    public static void setCustomExtractionFolder(String path) {
+        extractionFolderOverride = new File(path).getAbsoluteFile();
+    }
+
+    public static File getExtractionFolder() {
+        if (extractionFolderOverride != null) {
+            return extractionFolderOverride;
+        }
+        if (extractionFolder == null) {
+            File workingFolder = new File("").getAbsoluteFile();
+            if (!workingFolder.canWrite()) {
+                setExtractionDirToStorageDir();
+            } else {
+                try {
+                    File file = new File(workingFolder + File.separator + ".jmetestwrite");
+                    file.createNewFile();
+                    file.delete();
+                    extractionFolder = workingFolder;
+                } catch (Exception e) {
+                    setExtractionDirToStorageDir();
+                }
+            }
+        }
+        return extractionFolder;
+    }
+
+    private static void setExtractionDirToStorageDir() {
+        logger.log(Level.WARNING, "Working directory is not writable. Using home directory instead.");
+        extractionFolder = new File(JmeSystem.getStorageFolder(),
+                "natives_" + Integer.toHexString(computeNativesHash()));
+        if (!extractionFolder.exists()) {
+            extractionFolder.mkdir();
+        }
+    }
+
+    private static int computeNativesHash() {
+        URLConnection conn = null;
+        try {
+            String classpath = System.getProperty("java.class.path");
+            URL url = Thread.currentThread().getContextClassLoader().getResource("com/jme3/system/Natives.class");
+
+            StringBuilder sb = new StringBuilder(url.toString());
+            if (sb.indexOf("jar:") == 0) {
+                sb.delete(0, 4);
+                sb.delete(sb.indexOf("!"), sb.length());
+                sb.delete(sb.lastIndexOf("/") + 1, sb.length());
+            }
+            try {
+                url = new URL(sb.toString());
+            } catch (MalformedURLException ex) {
+                throw new UnsupportedOperationException(ex);
+            }
+
+            conn = url.openConnection();
+            int hash = classpath.hashCode() ^ (int) conn.getLastModified();
+            return hash;
+        } catch (IOException ex) {
+            throw new UnsupportedOperationException(ex);
+        } finally {
+            if (conn != null) {
+                try {
+                    conn.getInputStream().close();
+                    conn.getOutputStream().close();
+                } catch (IOException ex) { }
+            }
+        }
+    }
+
+    /**
+     * First extracts the native library and then loads it.
+     * 
+     * @param name The name of the library to load.
+     * @param isRequired If true and the library fails to load, throw exception. If
+     * false, do nothing if it fails to load.
+     */
+    public static void loadNativeLibrary(String name, boolean isRequired) {
+        if (JmeSystem.isLowPermissions()) {
+            throw new UnsupportedOperationException("JVM is running under "
+                    + "reduced permissions. Cannot load native libraries.");
+        }
+        
+        Platform platform = JmeSystem.getPlatform();
+        NativeLibrary library = nativeLibraryMap.get(new NativeLibrary.Key(name, platform));
+        
+        if (library == null) {
+            // No library exists for this platform.
+            if (isRequired) {
+                throw new UnsatisfiedLinkError(
+                        "The required native library '" + name + "'"
+                        + " is not available for your OS: " + platform);
+            } else {
+                logger.log(Level.FINE, "The optional native library ''{0}''" +
+                                       " is not available for your OS: {1}", 
+                                       new Object[]{name, platform});
+                return;
+            }
+        }
+        
+        String pathInJar = library.getPathInNativesJar();
+        
+        if (pathInJar == null) {
+            // This platform does not require the native library to be loaded.
+            return;
+        }
+        
+        String fileNameInJar;
+        if (pathInJar.contains("/")) {
+            fileNameInJar = pathInJar.substring(pathInJar.lastIndexOf("/") + 1);
+        } else {
+            fileNameInJar = pathInJar;
+        }
+        
+        URL url = Thread.currentThread().getContextClassLoader().getResource(pathInJar);
+        
+        if (url == null) {
+            // Try the root of the classpath as well.
+            url = Thread.currentThread().getContextClassLoader().getResource(fileNameInJar);
+        }
+        
+        if (url == null) {
+            // Attempt to load it as a system library.
+            try {
+                System.loadLibrary(name);
+                logger.log(Level.FINE, "Loaded system installed " + 
+                                       "version of native library: {0}", name);
+            } catch (UnsatisfiedLinkError e) {
+                if (isRequired) {
+                    throw new UnsatisfiedLinkError(
+                            "The required native library '" + name + "'"
+                            + " was not found in the classpath via '" + pathInJar + "'");
+                } else {
+                    logger.log(Level.FINE, "The optional native library ''{0}''" + 
+                                           " was not found in the classpath via ''{1}''", 
+                                           new Object[]{name, pathInJar});
+                }
+            }
+            
+            return;
+        }
+        
+        // The library has been found and is ready to be extracted.
+        // Determine what filename it should be extracted as.
+        String loadedAsFileName;
+        if (library.isJNI()) {
+            String nameWithArch;
+            
+            // Append "64" to path 
+            // so that we don't overwrite the 32-bit version.
+            if (platform.is64Bit()) {
+                nameWithArch = name + "64";
+            } else {
+                nameWithArch = name;
+            }
+            
+            // JNI libraries on Mac / JDK6 use jnilib extension.
+            // JNI libraries on Mac / JDK7 use dylib extension.
+            loadedAsFileName = System.mapLibraryName(nameWithArch);
+        } else {
+            // Not a JNI library.
+            // Just use the original filename as it is in the JAR.
+            loadedAsFileName = fileNameInJar;
+        }
+        
+        File extactionDirectory = getExtractionFolder();
+        URLConnection conn;
+        InputStream in;
+        
+        try {
+            conn = url.openConnection();
+            in = conn.getInputStream();
+        } catch (IOException ex) {
+            // Maybe put more detail here? Not sure..
+            throw new UnsatisfiedLinkError("Failed to open file: '" + url + 
+                                           "'. Error: " + ex);
+        }
+        
+        File targetFile = new File(extactionDirectory, loadedAsFileName);
+        OutputStream out = null;
+        try {
+            if (targetFile.exists()) {
+                // OK, compare last modified date of this file to 
+                // file in jar
+                long targetLastModified = targetFile.lastModified();
+                long sourceLastModified = conn.getLastModified();
+
+                // Allow ~1 second range for OSes that only support low precision
+                if (targetLastModified + 1000 > sourceLastModified) {
+                    logger.log(Level.FINE, "Not copying library {0}. " + 
+                                           "Latest already extracted.", 
+                                           loadedAsFileName);
+                    return;
+                }
+            }
+
+            out = new FileOutputStream(targetFile);
+            int len;
+            while ((len = in.read(buf)) > 0) {
+                out.write(buf, 0, len);
+            }
+            
+            in.close();
+            in = null;
+            out.close();
+            out = null;
+
+            // NOTE: On OSes that support "Date Created" property, 
+            // this will cause the last modified date to be lower than
+            // date created which makes no sense
+            targetFile.setLastModified(conn.getLastModified());
+        } catch (IOException ex) {
+            if (ex.getMessage().contains("used by another process")) {
+                return;
+            } else {
+                throw new UnsatisfiedLinkError("Failed to extract native "
+                        + "library to: " + targetFile);
+            }
+        } finally {
+            // Not sure if we always want to load it.
+            // Maybe specify this as a per library setting.
+            System.load(targetFile.getAbsolutePath());
+            
+            if(in != null){
+                try { in.close(); } catch (IOException ex) { }
+            }
+            if(out != null){
+                try { out.close(); } catch (IOException ex) { }
+            }
+        }
+        
+        logger.log(Level.FINE, "Loaded native library from ''{0}'' into ''{1}''", 
+                   new Object[]{url, targetFile});
+    }
+    
+}

jme3-examples/src/main/java/jme3test/app/TestNativeLoader.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2009-2012 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package jme3test.app;
+
+import com.jme3.system.NativeLibraryLoader;
+import com.jme3.util.JmeFormatter;
+import java.util.logging.ConsoleHandler;
+import java.util.logging.Handler;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Try to load some natives.
+ * 
+ * @author Kirill Vainer
+ */
+public class TestNativeLoader {
+    
+    public static void main(String[] args) {
+        Logger.getLogger("").getHandlers()[0].setLevel(Level.ALL);
+        Logger.getLogger("").setLevel(Level.ALL);
+        
+        NativeLibraryLoader.loadNativeLibrary("lwjgl", true);
+        NativeLibraryLoader.loadNativeLibrary("jinput", true);
+        NativeLibraryLoader.loadNativeLibrary("openal", true);
+        NativeLibraryLoader.loadNativeLibrary("bulletjme", false);
+    }
+}

jme3-lwjgl/build.gradle

@@ -5,5 +5,5 @@ if (!hasProperty('mainClass')) {
 dependencies {
     compile project(':jme3-core')
     compile project(':jme3-desktop')
-    compile 'org.lwjgl.lwjgl:lwjgl:2.9.0'
+    compile 'org.lwjgl.lwjgl:lwjgl:2.9.1'
 }