--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/regexp/joni/OptAnchorInfo.java	2020-04-15 18:51:37.000000000 +0530
+++ /dev/null	2020-04-15 18:51:37.000000000 +0530
@@ -1,114 +0,0 @@
-/*
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
- * of the Software, and to permit persons to whom the Software is furnished to do
- * so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package jdk.nashorn.internal.runtime.regexp.joni;
-
-import jdk.nashorn.internal.runtime.regexp.joni.constants.AnchorType;
-
-final class OptAnchorInfo implements AnchorType {
-    int leftAnchor;
-    int rightAnchor;
-
-    void clear() {
-        leftAnchor = rightAnchor = 0;
-    }
-
-    void copy(final OptAnchorInfo other) {
-        leftAnchor = other.leftAnchor;
-        rightAnchor = other.rightAnchor;
-    }
-
-    void concat(final OptAnchorInfo left, final OptAnchorInfo right, final int leftLength, final int rightLength) {
-        leftAnchor = left.leftAnchor;
-        if (leftLength == 0) {
-            leftAnchor |= right.leftAnchor;
-        }
-
-        rightAnchor = right.rightAnchor;
-        if (rightLength == 0) {
-            rightAnchor |= left.rightAnchor;
-        }
-    }
-
-    boolean isSet(final int anchor) {
-        if ((leftAnchor & anchor) != 0) {
-            return true;
-        }
-        return (rightAnchor & anchor) != 0;
-    }
-
-    void add(final int anchor) {
-        if (isLeftAnchor(anchor)) {
-            leftAnchor |= anchor;
-        } else {
-            rightAnchor |= anchor;
-        }
-    }
-
-    void remove(final int anchor) {
-        if (isLeftAnchor(anchor)) {
-            leftAnchor &= ~anchor;
-        } else {
-            rightAnchor &= ~anchor;
-        }
-    }
-
-    void altMerge(final OptAnchorInfo other) {
-        leftAnchor &= other.leftAnchor;
-        rightAnchor &= other.rightAnchor;
-    }
-
-    static boolean isLeftAnchor(final int anchor) { // make a mask for it ?
-        return !(anchor == END_BUF || anchor == SEMI_END_BUF ||
-                 anchor == END_LINE || anchor == PREC_READ ||
-                 anchor == PREC_READ_NOT);
-    }
-
-    static String anchorToString(final int anchor) {
-        final StringBuffer s = new StringBuffer("[");
-
-        if ((anchor & AnchorType.BEGIN_BUF) !=0 ) {
-            s.append("begin-buf ");
-        }
-        if ((anchor & AnchorType.BEGIN_LINE) !=0 ) {
-            s.append("begin-line ");
-        }
-        if ((anchor & AnchorType.BEGIN_POSITION) !=0 ) {
-            s.append("begin-pos ");
-        }
-        if ((anchor & AnchorType.END_BUF) !=0 ) {
-            s.append("end-buf ");
-        }
-        if ((anchor & AnchorType.SEMI_END_BUF) !=0 ) {
-            s.append("semi-end-buf ");
-        }
-        if ((anchor & AnchorType.END_LINE) !=0 ) {
-            s.append("end-line ");
-        }
-        if ((anchor & AnchorType.ANYCHAR_STAR) !=0 ) {
-            s.append("anychar-star ");
-        }
-        if ((anchor & AnchorType.ANYCHAR_STAR_ML) !=0 ) {
-            s.append("anychar-star-pl ");
-        }
-        s.append("]");
-
-        return s.toString();
-    }
-}