FULL PRODUCT VERSION :
java version "1.7.0"
Java(TM) SE Runtime Environment (build 1.7.0-b147)
Java HotSpot(TM) 64-Bit Server VM (build 21.0-b17, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7600]

A DESCRIPTION OF THE PROBLEM :
Compile time errors regarding string handling switch statements.

REGRESSION.  Last worked in version 6u26

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Try and compile the program described in the source code section.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The string handling switch statements do not work and are skipped when the program is run.
ACTUAL -
An exception has occurred in the compiler (1.7.0). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport)  after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report.  Thank you.
java.lang.NullPointerException
	at com.sun.tools.javac.comp.Lower.visitStringSwitch(Lower.java:3456)
	at com.sun.tools.javac.comp.Lower.visitSwitch(Lower.java:3357)
	at com.sun.tools.javac.tree.JCTree$JCSwitch.accept(JCTree.java:959)
	at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
	at com.sun.tools.javac.comp.Lower.translate(Lower.java:2160)
	at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:70)
	at com.sun.tools.javac.tree.TreeTranslator.visitBlock(TreeTranslator.java:160)
	at com.sun.tools.javac.comp.Lower.visitBlock(Lower.java:3311)
	at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:781)
	at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
	at com.sun.tools.javac.comp.Lower.translate(Lower.java:2160)
	at com.sun.tools.javac.tree.TreeTranslator.visitMethodDef(TreeTranslator.java:144)
	at com.sun.tools.javac.comp.Lower.visitMethodDefInternal(Lower.java:2619)
	at com.sun.tools.javac.comp.Lower.visitMethodDef(Lower.java:2538)
	at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:669)
	at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
	at com.sun.tools.javac.comp.Lower.translate(Lower.java:2160)
	at com.sun.tools.javac.comp.Lower.visitClassDef(Lower.java:2283)
	at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:591)
	at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
	at com.sun.tools.javac.comp.Lower.translate(Lower.java:2160)
	at com.sun.tools.javac.comp.Lower.visitClassDef(Lower.java:2283)
	at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:591)
	at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
	at com.sun.tools.javac.comp.Lower.translate(Lower.java:2160)
	at com.sun.tools.javac.comp.Lower.translate(Lower.java:2180)
	at com.sun.tools.javac.comp.Lower.translateTopLevelClass(Lower.java:3650)
	at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1393)
	at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1271)
	at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:870)
	at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:829)
	at com.sun.tools.javac.main.Main.compile(Main.java:417)
	at com.sun.tools.javac.main.Main.compile(Main.java:331)
	at com.sun.tools.javac.main.Main.compile(Main.java:322)
	at com.sun.tools.javac.Main.compile(Main.java:76)
	at com.sun.tools.javac.Main.main(Main.java:61)

Process completed.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
//This is the action listener which listens for actions from buttons named nextGenButton, stop, slow, medium, and fast.
class buttonListener implements ActionListener
    {
    	public void actionPerformed(ActionEvent e)
        {
        	switch (e.getActionCommand()){
        		case("nextGenButton"):
        			System.out.println("nextGen()! Correct? Maybe?");
        		case("stop"):
        			System.out.println("stop correct?");
        		case("slow"):
        			System.out.println("slow correct?");
        		case("medium"):
        			System.out.println("medium correct?");
        		case("fast"):
        			System.out.println("fast correct?");
        	}
        	System.out.println(e.getActionCommand());
        	nextGen();
        }
}
---------- END SOURCE ----------

SUPPORT :
YES