feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/sun/misc/ASCIICaseInsensitiveComparator.java

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+/*
+ * Copyright (c) 2002, 2004, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.misc;
+
+import java.util.Comparator;
+
+/** Implements a locale and case insensitive comparator suitable for
+    strings that are known to only contain ASCII characters. Some
+    tables internal to the JDK contain only ASCII data and are using
+    the "generalized" java.lang.String case-insensitive comparator
+    which converts each character to both upper and lower case. */
+
+public class ASCIICaseInsensitiveComparator implements Comparator<String> {
+    public static final Comparator<String> CASE_INSENSITIVE_ORDER =
+        new ASCIICaseInsensitiveComparator();
+
+    public int compare(String s1, String s2) {
+        int n1=s1.length(), n2=s2.length();
+        int minLen = n1 < n2 ? n1 : n2;
+        for (int i=0; i < minLen; i++) {
+            char c1 = s1.charAt(i);
+            char c2 = s2.charAt(i);
+            assert c1 <= '\u007F' && c2 <= '\u007F';
+            if (c1 != c2) {
+                c1 = (char)toLower(c1);
+                c2 = (char)toLower(c2);
+                if (c1 != c2) {
+                    return c1 - c2;
+                }
+            }
+        }
+        return n1 - n2;
+    }
+
+    /**
+     * A case insensitive hash code method to go with the case insensitive
+     * compare() method.
+     *
+     * Returns a hash code for this ASCII string as if it were lower case.
+     *
+     * returns same answer as:<p>
+     * <code>s.toLowerCase(Locale.US).hashCode();</code><p>
+     * but does not allocate memory (it does NOT have the special
+     * case Turkish rules).
+     *
+     * @param s a String to compute the hashcode on.
+     * @return  a hash code value for this object.
+     */
+    public static int lowerCaseHashCode(String s) {
+        int h = 0;
+        int len = s.length();
+
+        for (int i = 0; i < len; i++) {
+            h = 31*h + toLower(s.charAt(i));
+        }
+
+        return h;
+    }
+
+    /* If java.util.regex.ASCII ever becomes public or sun.*, use its code instead:*/
+    static boolean isLower(int ch) {
+        return ((ch-'a')|('z'-ch)) >= 0;
+    }
+
+    static boolean isUpper(int ch) {
+        return ((ch-'A')|('Z'-ch)) >= 0;
+    }
+
+    static int toLower(int ch) {
+        return isUpper(ch) ? (ch + 0x20) : ch;
+    }
+
+    static int toUpper(int ch) {
+        return isLower(ch) ? (ch - 0x20) : ch;
+    }
+}