FULL PRODUCT VERSION :
$ java -version
java version "1.5.0_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_01-b08)
Java HotSpot(TM) Client VM (build 1.5.0_01-b08, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
 customer  Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
Invoking compiler causes crash.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
javac crash.java

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
program compile
ACTUAL -
compiler crashed

ERROR MESSAGES/STACK TRACES THAT OCCUR :
$ javac crash.java
An exception has occurred in the compiler (1.5.0_01). 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.Attr.visitNewClass(Attr.java:1352)
        at com.sun.tools.javac.tree.Tree$NewClass.accept(Tree.java:845)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:280)
        at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:295)
        at com.sun.tools.javac.comp.Attr.visitAssign(Attr.java:1426)
        at com.sun.tools.javac.tree.Tree$Assign.accept(Tree.java:887)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:280)
        at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:302)
        at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:896)
        at com.sun.tools.javac.tree.Tree$Exec.accept(Tree.java:734)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:280)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:315)
        at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:331)
        at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:599)
        at com.sun.tools.javac.tree.Tree$Block.accept(Tree.java:540)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:280)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:315)
        at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:532)
        at com.sun.tools.javac.tree.Tree$MethodDef.accept(Tree.java:482)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:280)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:315)
        at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:2473)
        at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2406)
        at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2355)
        at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:444)
        at com.sun.tools.javac.main.Main.compile(Main.java:592)
        at com.sun.tools.javac.main.Main.compile(Main.java:544)
        at com.sun.tools.javac.Main.compile(Main.java:67)
        at com.sun.tools.javac.Main.main(Main.java:52)

Lyle   xxxxx@xxxxx   ~/java
$

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.*;
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
import java.lang.*;
import java.io.*;

import java.awt.event.*;

public class crash extends JFrame {

    public crash(String file) {
        super(file);
    }

    public static void main(String[] args) {

    }
}

class PriceGraph extends JLabel{
//class PriceGraph extends JLabel
    ArrayList <OHLC> ohlc = new ArrayList<OHLC>();
    Comparator <OHLC>findMaxHigh = null;
	Comparator <OHLC>findMinLow = null;

    PriceGraph (int pH, String file){
        super();

        findMinLow = new<OHLC> Comparator(){  // this is the line that causes the crash
                         public int compare (Object x1, Object x2){
                             return 1;
                         }
                     };

        findMaxHigh = new Comparator<OHLC>(){
                          public int compare (OHLC x1, OHLC x2){
                              double high1 = x1.high;
                              double high2 = x2.high;
                              int value =  high1 < high2 ? -1 : (high1 == high2 ? 0 : 1);
                              return value;
                          }
                      };

    }
    public void paintComponent (Graphics gc){
    }

}

class OHLC {
    int date;
    double open, high, low, close;
    OHLC(String dt, double o, double h, double l, double c){
        open = o; high = h; low  = l; close = c;
        String str[] = dt.split("/");
        date = Integer.decode(str[2] + str[0] + str[1]);
    }
    OHLC(String line){
        int delta;
        String fields[] = line.split(",");
        delta = fields.length == 6 ? 1 : 0;
        String mmddyyyy[] = fields[0].split("/");
        date  = Integer.decode(mmddyyyy[2] + mmddyyyy[0] + mmddyyyy[1]);
        open  = Double.parseDouble (fields[1 + delta]);
        high  = Double.parseDouble (fields[2 + delta]);
        low   = Double.parseDouble (fields[3 + delta]);
        close = Double.parseDouble (fields[4 + delta]);
    }
};


---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Avoid the syntax error that causes the crash.
  xxxxx@xxxxx   2005-2-22 21:29:13 GMT

N/A

Here is a smaller example:

interface I {}

class A {
    Object o = new <Object> I() {};
}

We should fix this in Mustang and backport the fix to 5.0.

  xxxxx@xxxxx   2005-03-17 07:59:44 GMT