--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/regexp/joni/ast/EncloseNode.java	2020-04-15 18:51:53.000000000 +0530
+++ /dev/null	2020-04-15 18:51:53.000000000 +0530
@@ -1,117 +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.ast;
-
-import jdk.nashorn.internal.runtime.regexp.joni.Option;
-import jdk.nashorn.internal.runtime.regexp.joni.constants.EncloseType;
-
-@SuppressWarnings("javadoc")
-public final class EncloseNode extends StateNode implements EncloseType {
-
-    public final int type;                // enclose type
-    public int regNum;
-    public int option;
-    public Node target;             /* EncloseNode : ENCLOSE_MEMORY */
-    public int callAddr;            // AbsAddrType
-    public int minLength;           // OnigDistance
-    public int maxLength;           // OnigDistance
-    public int charLength;
-    public int optCount;            // referenced count in optimize_node_left()
-
-    // node_new_enclose / onig_node_new_enclose
-    public EncloseNode(final int type) {
-        this.type = type;
-        callAddr = -1;
-    }
-
-    // node_new_enclose_memory
-    public EncloseNode() {
-        this(MEMORY);
-    }
-
-    // node_new_option
-    public EncloseNode(final int option, final int i) {
-        this(OPTION);
-        this.option = option;
-    }
-
-    @Override
-    public int getType() {
-        return ENCLOSE;
-    }
-
-    @Override
-    protected void setChild(final Node newChild) {
-        target = newChild;
-    }
-
-    @Override
-    protected Node getChild() {
-        return target;
-    }
-
-    public void setTarget(final Node tgt) {
-        target = tgt;
-        tgt.parent = this;
-    }
-
-    @Override
-    public String getName() {
-        return "Enclose";
-    }
-
-    @Override
-    public String toString(final int level) {
-        final StringBuilder value = new StringBuilder(super.toString(level));
-        value.append("\n  type: ").append(typeToString());
-        value.append("\n  regNum: ").append(regNum);
-        value.append("\n  option: ").append(Option.toString(option));
-        value.append("\n  target: ").append(pad(target, level + 1));
-        value.append("\n  callAddr: ").append(callAddr);
-        value.append("\n  minLength: ").append(minLength);
-        value.append("\n  maxLength: ").append(maxLength);
-        value.append("\n  charLength: ").append(charLength);
-        value.append("\n  optCount: ").append(optCount);
-
-        return value.toString();
-    }
-
-    public String typeToString() {
-        final StringBuilder types = new StringBuilder();
-        if (isStopBacktrack()) types.append("STOP_BACKTRACK ");
-        if (isMemory()) types.append("MEMORY ");
-        if (isOption()) types.append("OPTION ");
-
-        return types.toString();
-    }
-
-    public boolean isMemory() {
-        return (type & MEMORY) != 0;
-    }
-
-    public boolean isOption() {
-        return (type & OPTION) != 0;
-    }
-
-    public boolean isStopBacktrack() {
-        return (type & STOP_BACKTRACK) != 0;
-    }
-
-}