javax: io: Update the file/ folder.

The implementations were mostly in line with the javadocs as of
the previous commit. This one makes them nearly identical to the
docs.

src/javax/microedition/io/file/ConnectionClosedException.java

@@ -18,7 +18,9 @@
 
 public class ConnectionClosedException extends RuntimeException 
 {
-	public ConnectionClosedException() {}
+
+	public ConnectionClosedException() { }
 
 	public ConnectionClosedException(String detailMessage) { System.out.println("ConnectionClosedException: " + detailMessage); }
+
 }

src/javax/microedition/io/file/FileConnection.java

@@ -16,6 +16,7 @@
 */
 package javax.microedition.io.file;
 
+import java.io.IOException;
 import java.io.DataInputStream;
 import java.io.DataOutputStream;
 import java.io.InputStream;
@@ -26,65 +27,71 @@
 
 public interface FileConnection extends StreamConnection 
 {
-    public long availableSize();
 
-    public boolean canRead();
+    long availableSize() throws SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public boolean canWrite();
+    boolean canRead() throws SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public void create();
+    boolean canWrite() throws SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public void delete();
+    void create() throws IOException, SecurityException, IllegalModeException;
 
-    public long directorySize(boolean includeSubDirs);
+    void delete() throws IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public boolean exists();
+    long directorySize(boolean includeSubDirs) throws IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public long fileSize();
+    boolean exists() throws SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public String getName();
+    long fileSize() throws IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public String getPath();
+    String getName();
 
-    public String getURL();
+    String getPath();
 
-    public boolean isDirectory();
+    String getURL();
 
-    public boolean isHidden();
+    boolean isDirectory() throws IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public boolean isOpen();
+    boolean isHidden() throws SecurityException, IllegalModeException, ConnectionClosedException;
+
+    boolean isOpen();
 
-    public long lastModified();
+    long lastModified() throws SecurityException, IllegalModeException, ConnectionClosedException;
+
+    Enumeration list() throws IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public Enumeration list();
+    Enumeration list(String filter, boolean includeHidden) throws NullPointerException, IllegalArgumentException, IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public Enumeration list(String filter, boolean includeHidden);
+    void mkdir() throws IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public void mkdir();
+    @Override 
+    DataInputStream openDataInputStream() throws SecurityException, IllegalModeException;
 
-    public DataInputStream openDataInputStream();
+    @Override
+    DataOutputStream openDataOutputStream() throws SecurityException, IllegalModeException;
 
-    public DataOutputStream openDataOutputStream();
+    @Override
+    InputStream openInputStream() throws SecurityException, IllegalModeException;
 
-    public InputStream openInputStream();
+    @Override
+    OutputStream openOutputStream() throws SecurityException, IllegalModeException;
 
-    public OutputStream openOutputStream();
+    OutputStream openOutputStream(long byteOffset) throws IOException, SecurityException, IllegalModeException, IllegalArgumentException;
 
-    public OutputStream openOutputStream(long byteOffset);
+    void rename(String newName) throws IOException, SecurityException, IllegalModeException, ConnectionClosedException, NullPointerException, IllegalArgumentException;
 
-    public void rename();
+    void setFileConnection(String fileName) throws IOException, SecurityException, NullPointerException, IllegalArgumentException;
 
-    public void setFileConnection(String fileName);
+    void setHidden(boolean hidden) throws IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public void setHidden(boolean hidden);
+    void setReadable(boolean readable) throws IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public void setReadable(boolean readable);
+    void setWritable(boolean writable) throws IOException, SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public void setWritable(boolean writable);
+    long totalSize() throws SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public long totalSize();
+    void truncate(long byteOffset) throws IOException, SecurityException, IllegalModeException, ConnectionClosedException, IllegalArgumentException;
 
-    public void truncate(long byteOffset);
+    long usedSize() throws SecurityException, IllegalModeException, ConnectionClosedException;
 
-    public long usedSize();
-}
+}

src/javax/microedition/io/file/FileSystemListener.java

@@ -18,9 +18,11 @@
 
 public interface FileSystemListener 
 {
-	public static final int ROOT_ADDED = 1;
+
+	static final int ROOT_ADDED = 0;
 
-	public static final int ROOT_REMOVED = 0;
+	static final int ROOT_REMOVED = 1;
 
-	public abstract void rootChanged(int state, String rootName);
+	void rootChanged(int state, String rootName) throws NullPointerException, IllegalArgumentException;
+
 }

src/javax/microedition/io/file/FileSystemRegistry.java

@@ -18,11 +18,17 @@
 
 import java.util.Enumeration;
 
-public abstract class FileSystemRegistry 
+public class FileSystemRegistry extends Object
 {
-    public abstract boolean addFileSystemListener(FileSystemListener listener);
+
+	Enumeration roots; /* A zero-length Enumeration to be used below */
 
-    public abstract Enumeration listRoots();
+	/* Returns true if the fileSystemListener was added. */
+    public static boolean addFileSystemListener(FileSystemListener listener) throws SecurityException, NullPointerException { return false; }
+
+    public Enumeration listRoots() { return roots; }; /*If no roots are found, or it's not supported, return a zero-len enum*/
+
+	/* Returns true if the fileSystemListener was removed. */
+    public static boolean removeFileSystemListener(FileSystemListener listener) throws NullPointerException { return false; };
 
-    public abstract boolean removeFileSystemListener(FileSystemListener listener);
 }

src/javax/microedition/io/file/IllegalModeException.java

@@ -18,7 +18,9 @@
 
 public class IllegalModeException extends RuntimeException 
 {
-	public IllegalModeException() {}
+
+	public IllegalModeException() { }
 
 	public IllegalModeException(String detailMessage) { System.out.println("IllegalModeException: " + detailMessage); }
+
 }