--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/regexp/joni/OptExactInfo.java	2020-04-15 18:51:38.000000000 +0530
+++ /dev/null	2020-04-15 18:51:38.000000000 +0530
@@ -1,180 +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;
-
-final class OptExactInfo {
-    static final int OPT_EXACT_MAXLEN = 24;
-
-    final MinMaxLen mmd = new MinMaxLen();
-    final OptAnchorInfo anchor = new OptAnchorInfo();
-
-    boolean reachEnd;
-    boolean ignoreCase;
-
-    final char chars[] = new char[OPT_EXACT_MAXLEN];
-    int length;
-
-    boolean isFull() {
-        return length >= OPT_EXACT_MAXLEN;
-    }
-
-    void clear() {
-        mmd.clear();
-        anchor.clear();
-
-        reachEnd = false;
-        ignoreCase = false;
-        length = 0;
-    }
-
-    void copy(final OptExactInfo other) {
-        mmd.copy(other.mmd);
-        anchor.copy(other.anchor);
-        reachEnd = other.reachEnd;
-        ignoreCase = other.ignoreCase;
-        length = other.length;
-
-        System.arraycopy(other.chars, 0, chars, 0, OPT_EXACT_MAXLEN);
-    }
-
-    void concat(final OptExactInfo other) {
-        if (!ignoreCase && other.ignoreCase) {
-            if (length >= other.length) {
-                return; /* avoid */
-            }
-            ignoreCase = true;
-        }
-
-        int p = 0; // add->s;
-        final int end = p + other.length;
-
-        int i;
-        for (i = length; p < end;) {
-            if (i + 1 > OPT_EXACT_MAXLEN) {
-                break;
-            }
-            chars[i++] = other.chars[p++];
-        }
-
-        length = i;
-        reachEnd = (p == end ? other.reachEnd : false);
-
-        final OptAnchorInfo tmp = new OptAnchorInfo();
-        tmp.concat(anchor, other.anchor, 1, 1);
-        if (!other.reachEnd) {
-            tmp.rightAnchor = 0;
-        }
-        anchor.copy(tmp);
-    }
-
-    // ?? raw is not used here
-    void concatStr(final char[] lchars, final int pp, final int end, final boolean raw) {
-        int i;
-        int p = pp;
-        for (i = length; p < end && i < OPT_EXACT_MAXLEN;) {
-            if (i + 1 > OPT_EXACT_MAXLEN) {
-                break;
-            }
-            chars[i++] = lchars[p++];
-        }
-
-        length = i;
-    }
-
-    void altMerge(final OptExactInfo other, final OptEnvironment env) {
-        if (other.length == 0 || length == 0) {
-            clear();
-            return;
-        }
-
-        if (!mmd.equal(other.mmd)) {
-            clear();
-            return;
-        }
-
-        int i;
-        for (i = 0; i < length && i < other.length; i++) {
-            if (chars[i] != other.chars[i]) {
-                break;
-            }
-        }
-
-        if (!other.reachEnd || i<other.length || i<length) {
-            reachEnd = false;
-        }
-
-        length = i;
-        ignoreCase |= other.ignoreCase;
-
-        anchor.altMerge(other.anchor);
-
-        if (!reachEnd) {
-            anchor.rightAnchor = 0;
-        }
-    }
-
-
-    void select(final OptExactInfo alt) {
-        int v1 = length;
-        int v2 = alt.length;
-
-        if (v2 == 0) {
-            return;
-        } else if (v1 == 0) {
-            copy(alt);
-            return;
-        } else if (v1 <= 2 && v2 <= 2) {
-            /* ByteValTable[x] is big value --> low price */
-            v2 = OptMapInfo.positionValue(chars[0] & 0xff);
-            v1 = OptMapInfo.positionValue(alt.chars[0] & 0xff);
-
-            if (length > 1) {
-                v1 += 5;
-            }
-            if (alt.length > 1) {
-                v2 += 5;
-            }
-        }
-
-        if (!ignoreCase) {
-            v1 *= 2;
-        }
-        if (!alt.ignoreCase) {
-            v2 *= 2;
-        }
-
-        if (mmd.compareDistanceValue(alt.mmd, v1, v2) > 0) {
-            copy(alt);
-        }
-    }
-
-    // comp_opt_exact_or_map_info
-    private static final int COMP_EM_BASE   = 20;
-    int compare(final OptMapInfo m) {
-        if (m.value <= 0) {
-            return -1;
-        }
-
-        final int ve = COMP_EM_BASE * length * (ignoreCase ? 1 : 2);
-        final int vm = COMP_EM_BASE * 5 * 2 / m.value;
-
-        return mmd.compareDistanceValue(m.mmd, ve, vm);
-    }
-}