Strings with German characters will not compile on Merlin-beta build 49 
The test case (below) compiles fine with 1.2 and 1.3, but not with 1.4.  
(It also compiles fine with Ladybird build 14.)

echawkes@gradgrind:/home/echawkes/tests/4320834( 101 )% /usr/local/java/jdk1.2/solaris/bin/javac *.java
echawkes@gradgrind:/home/echawkes/tests/4320834( 103 )% /usr/local/java/jdk1.4/solsparc/bin/javac *.java
JFrame1.java:28: unclosed string literal
                setTitle("???; //<<<<<<<<<< not supported !!!!!!!!!!!
                         ^
JFrame1.java:30: ')' expected
                setDefaultCloseOperation(javax.swing.JFrame.DO_NOTHING_ON_CLOSE);
                                                                                ^

Test case (taken from 4320834) : 
 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class JFrame1 extends javax.swing.JFrame
{
	public JFrame1()
	{
		super();
		setTitle("��, ��, ��"); //<<<<<<<<<< not supported !!!!!!!!!!!
		
setDefaultCloseOperation(javax.swing.JFrame.DO_NOTHING_ON_CLOSE);
		getContentPane().setLayout(new BorderLayout(0,0));
		setSize(488,309);
		setVisible(false);
		JButton1.setText("k");
		getContentPane().add(JButton1);
		JButton1.setFont(new Font("Dialog", Font.PLAIN, 12));
		JButton1.setBounds(0,0,488,309);

		SymWindow aSymWindow = new SymWindow();
		this.addWindowListener(aSymWindow);
	}

	static public void main(String args[])
	{
		try {
			(new JFrame1()).setVisible(true);
		}
		catch (Throwable t) {
			t.printStackTrace();
			//Ensure the application exits with an error condition.
			System.exit(1);
		}
	}

	public void addNotify()
	{
		// Record the size of the window prior to calling parents
addNotify.
		Dimension size = getSize();
		
		super.addNotify();
		
		if (frameSizeAdjusted)
			return;
		frameSizeAdjusted = true;
		
		// Adjust size of frame according to the insets and menu bar
		javax.swing.JMenuBar menuBar = getRootPane().getJMenuBar();
		int menuBarHeight = 0;
		if (menuBar != null)
		    menuBarHeight = menuBar.getPreferredSize().height;
		Insets insets = getInsets();
		setSize(insets.left + insets.right + size.width, insets.top +
insets.bottom + size.height + menuBarHeight);
	}

	// Used by addNotify
	boolean frameSizeAdjusted = false;

	javax.swing.JButton JButton1 = new javax.swing.JButton();

	void exitApplication()
	{
		try {
	    	// Beep
	    	Toolkit.getDefaultToolkit().beep();
	    	// Show a confirmation dialog
	    	int reply = JOptionPane.showConfirmDialog(this,
	    	                                          "Do you really want to
exit?",
	    	                                          "JFC Application -
Exit" ,
	    	                                          
JOptionPane.YES_NO_OPTION,
	    	                                          
JOptionPane.QUESTION_MESSAGE);
			// If the confirmation was affirmative, handle exiting.
			if (reply == JOptionPane.YES_OPTION)
			{
		    	this.setVisible(false);    // hide the Frame
		    	this.dispose();            // free the system resources
		    	System.exit(0);            // close the application
			}
		} catch (Exception e) {
		}
	}

	class SymWindow extends java.awt.event.WindowAdapter
	{
		public void windowClosing(java.awt.event.WindowEvent event)
		{
			Object object = event.getSource();
			if (object == JFrame1.this)
				JFrame1_windowClosing(event);
		}
	}

	void JFrame1_windowClosing(java.awt.event.WindowEvent event)
	{
		// to do: code goes here.
			 
		JFrame1_windowClosing_Interaction1(event);
	}

	void JFrame1_windowClosing_Interaction1(java.awt.event.WindowEvent
event) {
		try {
			this.exitApplication();
		} catch (Exception e) {
		}
	}
}