8037945: Paths.get("").normalize() throws ArrayIndexOutOfBoundsException

Reviewed-by: chegar

src/solaris/classes/sun/nio/fs/UnixPath.java

@@ -482,7 +482,7 @@ class UnixPath
     @Override
     public Path normalize() {
         final int count = getNameCount();
-        if (count == 0)
+        if (count == 0 || isEmpty())
             return this;
 
         boolean[] ignore = new boolean[count];      // true => ignore name

test/java/nio/file/Path/PathOps.java

@@ -22,7 +22,7 @@
  */
 
 /* @test
- * @bug 4313887 6838333 6925932 7006126
+ * @bug 4313887 6838333 6925932 7006126 8037945
  * @summary Unit test for java.nio.file.Path path operations
  */
 
@@ -899,6 +899,8 @@ public class PathOps {
             .normalize("foo");
         test("/foo")
             .normalize("/foo");
+        test("")
+            .normalize("");
         test(".")
             .normalize("");
         test("..")