Implement the isSupported method and make plugins work again. There was an issue where accessing the static methods in DefaultControllerEnvironment and ControllerEnvironment would cause ploblems when the plugins were loaded using the PluginLoader class loader.

plugins/OSX/src/java/net/java/games/input/OSXEnvironmentPlugin.java

@@ -38,6 +38,7 @@
 *****************************************************************************/
 package net.java.games.input;
 
+import java.io.File;
 import java.io.IOException;
 import java.util.List;
 import java.util.Map;
@@ -55,8 +56,54 @@ import java.security.PrivilegedAction;
 * @version 1.0
 */
 public final class OSXEnvironmentPlugin extends ControllerEnvironment implements Plugin {
+	
+	private static boolean supported = false;
+	
+	/**
+	 * Static utility method for loading native libraries.
+	 * It will try to load from either the path given by
+	 * the net.java.games.input.librarypath property
+	 * or through System.loadLibrary().
+	 * 
+	 */
+	static void loadLibrary(final String lib_name) {
+		AccessController.doPrivileged(
+				new PrivilegedAction() {
+					public final Object run() {
+						String lib_path = System.getProperty("net.java.games.input.librarypath");
+						if (lib_path != null)
+							System.load(lib_path + File.separator + System.mapLibraryName(lib_name));
+						else
+							System.loadLibrary(lib_name);
+						return null;
+					}
+				});
+	}
+    
+	static String getPrivilegedProperty(final String property) {
+	       return (String)AccessController.doPrivileged(new PrivilegedAction() {
+	                public Object run() {
+	                    return System.getProperty(property);
+	                }
+	            });
+		}
+		
+
+	static String getPrivilegedProperty(final String property, final String default_value) {
+       return (String)AccessController.doPrivileged(new PrivilegedAction() {
+                public Object run() {
+                    return System.getProperty(property, default_value);
+                }
+            });
+	}
+		
     static {
-		DefaultControllerEnvironment.loadLibrary("jinput-osx");
+    	String osName = getPrivilegedProperty("os.name", "").trim();
+    	if(osName.equals("Mac OS X")) {
+    		// Could check isMacOSXEqualsOrBetterThan in here too.
+    		supported = true;
+    		loadLibrary("jinput-osx");
+    	}
     }
 
 	private final static boolean isMacOSXEqualsOrBetterThan(int major_required, int minor_required) {
@@ -70,7 +117,7 @@ public final class OSXEnvironmentPlugin extends ControllerEnvironment implements
 			major = Integer.parseInt(major_str);
 			minor = Integer.parseInt(minor_str);
 		} catch (Exception e) {
-			ControllerEnvironment.logln("Exception occurred while trying to determine OS version: " + e);
+			logln("Exception occurred while trying to determine OS version: " + e);
 			// Best guess, no
 			return false;
 		}
@@ -80,13 +127,21 @@ public final class OSXEnvironmentPlugin extends ControllerEnvironment implements
 	private final Controller[] controllers;
 
 	public OSXEnvironmentPlugin() {
-		this.controllers = enumerateControllers();
+		if(isSupported()) {
+			this.controllers = enumerateControllers();
+		} else {
+			this.controllers = new Controller[0];
+		}
 	}
 
 	public final Controller[] getControllers() {
 		return controllers;
 	}
 
+	public boolean isSupported() {
+		return supported;
+	}
+
 	private final static void addElements(OSXHIDQueue queue, List elements, List components, boolean map_mouse_buttons) throws IOException {
 		Iterator it = elements.iterator();
 		while (it.hasNext()) {
@@ -202,19 +257,19 @@ public final class OSXEnvironmentPlugin extends ControllerEnvironment implements
 							createControllersFromDevice(device, controllers);
 							device_used = old_size != controllers.size();
 						} catch (IOException e) {
-							ControllerEnvironment.logln("Failed to create controllers from device: " + device.getProductName());
+							logln("Failed to create controllers from device: " + device.getProductName());
 						}
 						if (!device_used)
 							device.release();
 					} catch (IOException e) {
-						ControllerEnvironment.logln("Failed to enumerate device: " + e.getMessage());
+						logln("Failed to enumerate device: " + e.getMessage());
 					}
 				}
 			} finally {
 				it.close();
 			}
 		} catch (IOException e) {
-			ControllerEnvironment.log("Failed to enumerate devices: " + e.getMessage());
+			log("Failed to enumerate devices: " + e.getMessage());
 			return new Controller[]{};
 		}
 		Controller[] controllers_array = new Controller[controllers.size()];