FULL PRODUCT VERSION :
java version "1.6.0-ea"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b54)
Java HotSpot(TM) Client VM (build 1.6.0-ea-b54, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
lub() thows a NullPointerException in case of a mix of
varags/unboxing and generics.



STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
run the example

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The two methods min are ambiguous.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
An exception has occurred in the compiler (1.6.0-ea). Please file a bug at the J
ava Developer Connection (http://java.sun.com/webapps/bugreport) after checking
 the Bug Parade for duplicates. Include your program and the following diagnosti
c in your report. Thank you.
java.lang.NullPointerException
        at com.sun.tools.javac.code.Types.lub(Types.java:2569)
        at com.sun.tools.javac.code.Types.lub(Types.java:2583)
        at com.sun.tools.javac.comp.Infer.minimizeInst(Infer.java:187)
        at com.sun.tools.javac.comp.Infer.instantiateMethod(Infer.java:328)
        at com.sun.tools.javac.comp.Resolve.rawInstantiate(Resolve.java:307)
        at com.sun.tools.javac.comp.Resolve.instantiate(Resolve.java:332)
        at com.sun.tools.javac.comp.Resolve.mostSpecific(Resolve.java:570)
        at com.sun.tools.javac.comp.Resolve.selectBest(Resolve.java:543)
        at com.sun.tools.javac.comp.Resolve.findMethod(Resolve.java:720)
        at com.sun.tools.javac.comp.Resolve.findMethod(Resolve.java:686)
        at com.sun.tools.javac.comp.Resolve.findFun(Resolve.java:766)
        at com.sun.tools.javac.comp.Resolve.resolveMethod(Resolve.java:1157)
        at com.sun.tools.javac.comp.Attr.visitIdent(Attr.java:1620)
        at com.sun.tools.javac.tree.Tree$Ident.accept(Tree.java:1251)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:277)
        at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:292)
        at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1149)
        at com.sun.tools.javac.tree.Tree$Apply.accept(Tree.java:992)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:277)
        at com.sun.tools.javac.comp.Attr.attribArgs(Attr.java:336)
        at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1141)
        at com.sun.tools.javac.tree.Tree$Apply.accept(Tree.java:992)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:277)
        at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:299)
        at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:925)
        at com.sun.tools.javac.tree.Tree$Exec.accept(Tree.java:888)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:277)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:312)
        at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:328)
        at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:626)
        at com.sun.tools.javac.tree.Tree$Block.accept(Tree.java:630)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:277)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:312)
        at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:537)
        at com.sun.tools.javac.tree.Tree$MethodDef.accept(Tree.java:545)
        at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:277)
        at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:312)
        at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:2525)
        at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2457)
        at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2393)
        at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:636
)
        at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:549)
        at com.sun.tools.javac.main.Main.compile(Main.java:680)
        at com.sun.tools.javac.main.Main.compile(Main.java:611)
        at com.sun.tools.javac.main.Main.compile(Main.java:607)
        at com.sun.tools.javac.Main.compile(Main.java:70)
        at com.sun.tools.javac.Main.main(Main.java:55)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class Min {
    public static int min(int a, int ... ints){

  int minTmp=a;
  for(int num:ints){
      if(num < minTmp)
    minTmp = num;
  }
  return minTmp;
  }
    
    public static <T extends Comparable<T>> T min(T a, T ... ints){
  T minTmp=a;
  for(T num:ints){
      if(num.compareTo(minTmp) < 0)
    minTmp = num;
  }
  return minTmp;
    }
    
    public static void main(String[] args){
  System.out.println(min(Integer.valueOf(1), Integer.valueOf(2)));
    }
}
---------- END SOURCE ----------