Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

external/ikvm/classpath/java/util/concurrent/atomic/AtomicBoolean.java

@@ -0,0 +1,152 @@
+/*
+ * 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.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+package java.util.concurrent.atomic;
+
+/**
+ * A {@code boolean} value that may be updated atomically. See the
+ * {@link java.util.concurrent.atomic} package specification for
+ * description of the properties of atomic variables. An
+ * {@code AtomicBoolean} is used in applications such as atomically
+ * updated flags, and cannot be used as a replacement for a
+ * {@link java.lang.Boolean}.
+ *
+ * @since 1.5
+ * @author Doug Lea
+ */
+public class AtomicBoolean implements java.io.Serializable {
+    private static final long serialVersionUID = 4654671469794556979L;
+
+    private volatile int value;
+
+    /**
+     * Creates a new {@code AtomicBoolean} with the given initial value.
+     *
+     * @param initialValue the initial value
+     */
+    public AtomicBoolean(boolean initialValue) {
+        value = initialValue ? 1 : 0;
+    }
+
+    /**
+     * Creates a new {@code AtomicBoolean} with initial value {@code false}.
+     */
+    public AtomicBoolean() {
+    }
+
+    /**
+     * Returns the current value.
+     *
+     * @return the current value
+     */
+    public final boolean get() {
+        return value != 0;
+    }
+
+    /**
+     * Atomically sets the value to the given updated value
+     * if the current value {@code ==} the expected value.
+     *
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful. False return indicates that
+     * the actual value was not equal to the expected value.
+     */
+    public final boolean compareAndSet(boolean expect, boolean update) {
+        int e = expect ? 1 : 0;
+        int u = update ? 1 : 0;
+        return compareAndSwapInt(e, u);
+    }
+    // implemented in map.xml
+    private native boolean compareAndSwapInt(int expected, int update);
+
+    /**
+     * Atomically sets the value to the given updated value
+     * if the current value {@code ==} the expected value.
+     *
+     * <p>May <a href="package-summary.html#Spurious">fail spuriously</a>
+     * and does not provide ordering guarantees, so is only rarely an
+     * appropriate alternative to {@code compareAndSet}.
+     *
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful.
+     */
+    public boolean weakCompareAndSet(boolean expect, boolean update) {
+        return compareAndSet(expect, update);
+    }
+
+    /**
+     * Unconditionally sets to the given value.
+     *
+     * @param newValue the new value
+     */
+    public final void set(boolean newValue) {
+        value = newValue ? 1 : 0;
+    }
+
+    /**
+     * Eventually sets to the given value.
+     *
+     * @param newValue the new value
+     * @since 1.6
+     */
+    public final void lazySet(boolean newValue) {
+        value = newValue ? 1 : 0;
+    }
+
+    /**
+     * Atomically sets to the given value and returns the previous value.
+     *
+     * @param newValue the new value
+     * @return the previous value
+     */
+    public final boolean getAndSet(boolean newValue) {
+        for (;;) {
+            boolean current = get();
+            if (compareAndSet(current, newValue))
+                return current;
+        }
+    }
+
+    /**
+     * Returns the String representation of the current value.
+     * @return the String representation of the current value.
+     */
+    public String toString() {
+        return Boolean.toString(get());
+    }
+
+}

external/ikvm/classpath/java/util/concurrent/atomic/AtomicInteger.java

@@ -0,0 +1,209 @@
+/*
+ * 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.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+package java.util.concurrent.atomic;
+
+/**
+ * An {@code int} value that may be updated atomically.  See the
+ * {@link java.util.concurrent.atomic} package specification for
+ * description of the properties of atomic variables. An
+ * {@code AtomicInteger} is used in applications such as atomically
+ * incremented counters, and cannot be used as a replacement for an
+ * {@link java.lang.Integer}. However, this class does extend
+ * {@code Number} to allow uniform access by tools and utilities that
+ * deal with numerically-based classes.
+ *
+ * @since 1.5
+ * @author Doug Lea
+*/
+public class AtomicInteger extends Number implements java.io.Serializable {
+    private static final long serialVersionUID = 6214790243416807050L;
+
+    private volatile int value;
+
+    /**
+     * Creates a new AtomicInteger with the given initial value.
+     *
+     * @param initialValue the initial value
+     */
+    public AtomicInteger(int initialValue) {
+        value = initialValue;
+    }
+
+    /**
+     * Creates a new AtomicInteger with initial value {@code 0}.
+     */
+    public AtomicInteger() {
+    }
+
+    /**
+     * Gets the current value.
+     *
+     * @return the current value
+     */
+    public final int get() {
+        return value;
+    }
+
+    /**
+     * Sets to the given value.
+     *
+     * @param newValue the new value
+     */
+    public final void set(int newValue) {
+        value = newValue;
+    }
+
+    /**
+     * Eventually sets to the given value.
+     *
+     * @param newValue the new value
+     * @since 1.6
+     */
+    public final void lazySet(int newValue) {
+        value = newValue;
+    }
+
+    /**
+     * Atomically sets to the given value and returns the old value.
+     *
+     * @param newValue the new value
+     * @return the previous value
+     */
+    public final native int getAndSet(int newValue);
+
+    /**
+     * Atomically sets the value to the given updated value
+     * if the current value {@code ==} the expected value.
+     *
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful. False return indicates that
+     * the actual value was not equal to the expected value.
+     */
+    public final native boolean compareAndSet(int expect, int update);
+
+    /**
+     * Atomically sets the value to the given updated value
+     * if the current value {@code ==} the expected value.
+     *
+     * <p>May <a href="package-summary.html#Spurious">fail spuriously</a>
+     * and does not provide ordering guarantees, so is only rarely an
+     * appropriate alternative to {@code compareAndSet}.
+     *
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful.
+     */
+    public final boolean weakCompareAndSet(int expect, int update) {
+        return compareAndSet(expect, update);
+    }
+
+    /**
+     * Atomically increments by one the current value.
+     *
+     * @return the previous value
+     */
+    public final int getAndIncrement() {
+        return incrementAndGet() - 1;
+    }
+
+    /**
+     * Atomically decrements by one the current value.
+     *
+     * @return the previous value
+     */
+    public final int getAndDecrement() {
+        return decrementAndGet() + 1;
+    }
+
+    /**
+     * Atomically adds the given value to the current value.
+     *
+     * @param delta the value to add
+     * @return the previous value
+     */
+    public final int getAndAdd(int delta) {
+        return addAndGet(delta) - delta;
+    }
+
+    /**
+     * Atomically increments by one the current value.
+     *
+     * @return the updated value
+     */
+    public final native int incrementAndGet();
+
+    /**
+     * Atomically decrements by one the current value.
+     *
+     * @return the updated value
+     */
+    public final native int decrementAndGet();
+
+    /**
+     * Atomically adds the given value to the current value.
+     *
+     * @param delta the value to add
+     * @return the updated value
+     */
+    public final native int addAndGet(int delta);
+
+    /**
+     * Returns the String representation of the current value.
+     * @return the String representation of the current value.
+     */
+    public String toString() {
+        return Integer.toString(get());
+    }
+
+
+    public int intValue() {
+        return get();
+    }
+
+    public long longValue() {
+        return (long)get();
+    }
+
+    public float floatValue() {
+        return (float)get();
+    }
+
+    public double doubleValue() {
+        return (double)get();
+    }
+
+}

external/ikvm/classpath/java/util/concurrent/atomic/AtomicIntegerArray.java

@@ -0,0 +1,225 @@
+/*
+ * 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.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+package java.util.concurrent.atomic;
+
+import java.util.*;
+
+/**
+ * An {@code int} array in which elements may be updated atomically.
+ * See the {@link java.util.concurrent.atomic} package
+ * specification for description of the properties of atomic
+ * variables.
+ * @since 1.5
+ * @author Doug Lea
+ */
+public class AtomicIntegerArray implements java.io.Serializable {
+    private static final long serialVersionUID = 2862133569453604235L;
+
+    private final int[] array;
+
+    /**
+     * Creates a new AtomicIntegerArray of the given length, with all
+     * elements initially zero.
+     *
+     * @param length the length of the array
+     */
+    public AtomicIntegerArray(int length) {
+        array = new int[length];
+    }
+
+    /**
+     * Creates a new AtomicIntegerArray with the same length as, and
+     * all elements copied from, the given array.
+     *
+     * @param array the array to copy elements from
+     * @throws NullPointerException if array is null
+     */
+    public AtomicIntegerArray(int[] array) {
+        // Visibility guaranteed by final field guarantees
+        this.array = array.clone();
+    }
+
+    /**
+     * Returns the length of the array.
+     *
+     * @return the length of the array
+     */
+    public final int length() {
+        return array.length;
+    }
+
+    /**
+     * Gets the current value at position {@code i}.
+     *
+     * @param i the index
+     * @return the current value
+     */
+    public final native int get(int i);
+
+    /**
+     * Sets the element at position {@code i} to the given value.
+     *
+     * @param i the index
+     * @param newValue the new value
+     */
+    public final native void set(int i, int newValue);
+
+    /**
+     * Eventually sets the element at position {@code i} to the given value.
+     *
+     * @param i the index
+     * @param newValue the new value
+     * @since 1.6
+     */
+    public final void lazySet(int i, int newValue) {
+        set(i, newValue);
+    }
+
+    /**
+     * Atomically sets the element at position {@code i} to the given
+     * value and returns the old value.
+     *
+     * @param i the index
+     * @param newValue the new value
+     * @return the previous value
+     */
+    public final native int getAndSet(int i, int newValue);
+
+    /**
+     * Atomically sets the element at position {@code i} to the given
+     * updated value if the current value {@code ==} the expected value.
+     *
+     * @param i the index
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful. False return indicates that
+     * the actual value was not equal to the expected value.
+     */
+    public final native boolean compareAndSet(int i, int expect, int update);
+
+    /**
+     * Atomically sets the element at position {@code i} to the given
+     * updated value if the current value {@code ==} the expected value.
+     *
+     * <p>May <a href="package-summary.html#Spurious">fail spuriously</a>
+     * and does not provide ordering guarantees, so is only rarely an
+     * appropriate alternative to {@code compareAndSet}.
+     *
+     * @param i the index
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful.
+     */
+    public final boolean weakCompareAndSet(int i, int expect, int update) {
+        return compareAndSet(i, expect, update);
+    }
+
+    /**
+     * Atomically increments by one the element at index {@code i}.
+     *
+     * @param i the index
+     * @return the previous value
+     */
+    public final int getAndIncrement(int i) {
+        return incrementAndGet(i) - 1;
+    }
+
+    /**
+     * Atomically decrements by one the element at index {@code i}.
+     *
+     * @param i the index
+     * @return the previous value
+     */
+    public final int getAndDecrement(int i) {
+        return decrementAndGet(i) + 1;
+    }
+
+    /**
+     * Atomically adds the given value to the element at index {@code i}.
+     *
+     * @param i the index
+     * @param delta the value to add
+     * @return the previous value
+     */
+    public final int getAndAdd(int i, int delta) {
+        return addAndGet(i, delta) - delta;
+    }
+
+    /**
+     * Atomically increments by one the element at index {@code i}.
+     *
+     * @param i the index
+     * @return the updated value
+     */
+    public final native int incrementAndGet(int i);
+
+    /**
+     * Atomically decrements by one the element at index {@code i}.
+     *
+     * @param i the index
+     * @return the updated value
+     */
+    public final native int decrementAndGet(int i);
+
+    /**
+     * Atomically adds the given value to the element at index {@code i}.
+     *
+     * @param i the index
+     * @param delta the value to add
+     * @return the updated value
+     */
+    public final native int addAndGet(int i, int delta);
+
+    /**
+     * Returns the String representation of the current values of array.
+     * @return the String representation of the current values of array.
+     */
+    public String toString() {
+        int iMax = array.length - 1;
+        if (iMax == -1)
+            return "[]";
+
+        StringBuilder b = new StringBuilder();
+        b.append('[');
+        for (int i = 0; ; i++) {
+            b.append(get(i));
+            if (i == iMax)
+                return b.append(']').toString();
+            b.append(',').append(' ');
+        }
+    }
+
+}

external/ikvm/classpath/java/util/concurrent/atomic/AtomicLong.java

@@ -0,0 +1,217 @@
+/*
+ * 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.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+package java.util.concurrent.atomic;
+
+/**
+ * A {@code long} value that may be updated atomically.  See the
+ * {@link java.util.concurrent.atomic} package specification for
+ * description of the properties of atomic variables. An
+ * {@code AtomicLong} is used in applications such as atomically
+ * incremented sequence numbers, and cannot be used as a replacement
+ * for a {@link java.lang.Long}. However, this class does extend
+ * {@code Number} to allow uniform access by tools and utilities that
+ * deal with numerically-based classes.
+ *
+ * @since 1.5
+ * @author Doug Lea
+ */
+public class AtomicLong extends Number implements java.io.Serializable {
+    private static final long serialVersionUID = 1927816293512124184L;
+
+    /**
+     * Records whether the underlying JVM supports lockless
+     * compareAndSwap for longs. While the Unsafe.compareAndSwapLong
+     * method works in either case, some constructions should be
+     * handled at Java level to avoid locking user-visible locks.
+     */
+    static final boolean VM_SUPPORTS_LONG_CAS = false;
+
+    private volatile long value;
+
+    /**
+     * Creates a new AtomicLong with the given initial value.
+     *
+     * @param initialValue the initial value
+     */
+    public AtomicLong(long initialValue) {
+        value = initialValue;
+    }
+
+    /**
+     * Creates a new AtomicLong with initial value {@code 0}.
+     */
+    public AtomicLong() {
+    }
+
+    /**
+     * Gets the current value.
+     *
+     * @return the current value
+     */
+    public final long get() {
+        return value;
+    }
+
+    /**
+     * Sets to the given value.
+     *
+     * @param newValue the new value
+     */
+    public final void set(long newValue) {
+        value = newValue;
+    }
+
+    /**
+     * Eventually sets to the given value.
+     *
+     * @param newValue the new value
+     * @since 1.6
+     */
+    public final void lazySet(long newValue) {
+        value = newValue;
+    }
+
+    /**
+     * Atomically sets to the given value and returns the old value.
+     *
+     * @param newValue the new value
+     * @return the previous value
+     */
+    public final native long getAndSet(long newValue);
+
+    /**
+     * Atomically sets the value to the given updated value
+     * if the current value {@code ==} the expected value.
+     *
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful. False return indicates that
+     * the actual value was not equal to the expected value.
+     */
+    public final native boolean compareAndSet(long expect, long update);
+
+    /**
+     * Atomically sets the value to the given updated value
+     * if the current value {@code ==} the expected value.
+     *
+     * <p>May <a href="package-summary.html#Spurious">fail spuriously</a>
+     * and does not provide ordering guarantees, so is only rarely an
+     * appropriate alternative to {@code compareAndSet}.
+     *
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful.
+     */
+    public final boolean weakCompareAndSet(long expect, long update) {
+        return compareAndSet(expect, update);
+    }
+
+    /**
+     * Atomically increments by one the current value.
+     *
+     * @return the previous value
+     */
+    public final long getAndIncrement() {
+        return incrementAndGet() - 1;
+    }
+
+    /**
+     * Atomically decrements by one the current value.
+     *
+     * @return the previous value
+     */
+    public final long getAndDecrement() {
+        return decrementAndGet() + 1;
+    }
+
+    /**
+     * Atomically adds the given value to the current value.
+     *
+     * @param delta the value to add
+     * @return the previous value
+     */
+    public final long getAndAdd(long delta) {
+        return addAndGet(delta) - delta;
+    }
+
+    /**
+     * Atomically increments by one the current value.
+     *
+     * @return the updated value
+     */
+    public final native long incrementAndGet();
+
+    /**
+     * Atomically decrements by one the current value.
+     *
+     * @return the updated value
+     */
+    public final native long decrementAndGet();
+
+    /**
+     * Atomically adds the given value to the current value.
+     *
+     * @param delta the value to add
+     * @return the updated value
+     */
+    public final native long addAndGet(long delta);
+
+    /**
+     * Returns the String representation of the current value.
+     * @return the String representation of the current value.
+     */
+    public String toString() {
+        return Long.toString(get());
+    }
+
+
+    public int intValue() {
+        return (int)get();
+    }
+
+    public long longValue() {
+        return get();
+    }
+
+    public float floatValue() {
+        return (float)get();
+    }
+
+    public double doubleValue() {
+        return (double)get();
+    }
+
+}

external/ikvm/classpath/java/util/concurrent/atomic/AtomicLongArray.java

@@ -0,0 +1,224 @@
+/*
+ * 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.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+package java.util.concurrent.atomic;
+import java.util.*;
+
+/**
+ * A {@code long} array in which elements may be updated atomically.
+ * See the {@link java.util.concurrent.atomic} package specification
+ * for description of the properties of atomic variables.
+ * @since 1.5
+ * @author Doug Lea
+ */
+public class AtomicLongArray implements java.io.Serializable {
+    private static final long serialVersionUID = -2308431214976778248L;
+
+    private final long[] array;
+
+    /**
+     * Creates a new AtomicLongArray of the given length, with all
+     * elements initially zero.
+     *
+     * @param length the length of the array
+     */
+    public AtomicLongArray(int length) {
+        array = new long[length];
+    }
+
+    /**
+     * Creates a new AtomicLongArray with the same length as, and
+     * all elements copied from, the given array.
+     *
+     * @param array the array to copy elements from
+     * @throws NullPointerException if array is null
+     */
+    public AtomicLongArray(long[] array) {
+        // Visibility guaranteed by final field guarantees
+        this.array = array.clone();
+    }
+
+    /**
+     * Returns the length of the array.
+     *
+     * @return the length of the array
+     */
+    public final int length() {
+        return array.length;
+    }
+
+    /**
+     * Gets the current value at position {@code i}.
+     *
+     * @param i the index
+     * @return the current value
+     */
+    public final native long get(int i);
+
+    /**
+     * Sets the element at position {@code i} to the given value.
+     *
+     * @param i the index
+     * @param newValue the new value
+     */
+    public final native void set(int i, long newValue);
+
+    /**
+     * Eventually sets the element at position {@code i} to the given value.
+     *
+     * @param i the index
+     * @param newValue the new value
+     * @since 1.6
+     */
+    public final void lazySet(int i, long newValue) {
+        set(i, newValue);
+    }
+
+
+    /**
+     * Atomically sets the element at position {@code i} to the given value
+     * and returns the old value.
+     *
+     * @param i the index
+     * @param newValue the new value
+     * @return the previous value
+     */
+    public final native long getAndSet(int i, long newValue);
+
+    /**
+     * Atomically sets the element at position {@code i} to the given
+     * updated value if the current value {@code ==} the expected value.
+     *
+     * @param i the index
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful. False return indicates that
+     * the actual value was not equal to the expected value.
+     */
+    public final native boolean compareAndSet(int i, long expect, long update);
+
+    /**
+     * Atomically sets the element at position {@code i} to the given
+     * updated value if the current value {@code ==} the expected value.
+     *
+     * <p>May <a href="package-summary.html#Spurious">fail spuriously</a>
+     * and does not provide ordering guarantees, so is only rarely an
+     * appropriate alternative to {@code compareAndSet}.
+     *
+     * @param i the index
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful.
+     */
+    public final boolean weakCompareAndSet(int i, long expect, long update) {
+        return compareAndSet(i, expect, update);
+    }
+
+    /**
+     * Atomically increments by one the element at index {@code i}.
+     *
+     * @param i the index
+     * @return the previous value
+     */
+    public final long getAndIncrement(int i) {
+        return incrementAndGet(i) - 1;
+    }
+
+    /**
+     * Atomically decrements by one the element at index {@code i}.
+     *
+     * @param i the index
+     * @return the previous value
+     */
+    public final long getAndDecrement(int i) {
+        return decrementAndGet(i) + 1;
+    }
+
+    /**
+     * Atomically adds the given value to the element at index {@code i}.
+     *
+     * @param i the index
+     * @param delta the value to add
+     * @return the previous value
+     */
+    public final long getAndAdd(int i, long delta) {
+        return addAndGet(i, delta) - delta;
+    }
+
+    /**
+     * Atomically increments by one the element at index {@code i}.
+     *
+     * @param i the index
+     * @return the updated value
+     */
+    public final native long incrementAndGet(int i);
+
+    /**
+     * Atomically decrements by one the element at index {@code i}.
+     *
+     * @param i the index
+     * @return the updated value
+     */
+    public final native long decrementAndGet(int i);
+
+    /**
+     * Atomically adds the given value to the element at index {@code i}.
+     *
+     * @param i the index
+     * @param delta the value to add
+     * @return the updated value
+     */
+    public native long addAndGet(int i, long delta);
+
+    /**
+     * Returns the String representation of the current values of array.
+     * @return the String representation of the current values of array.
+     */
+    public String toString() {
+        int iMax = array.length - 1;
+        if (iMax == -1)
+            return "[]";
+
+        StringBuilder b = new StringBuilder();
+        b.append('[');
+        for (int i = 0; ; i++) {
+            b.append(get(i));
+            if (i == iMax)
+                return b.append(']').toString();
+            b.append(',').append(' ');
+        }
+    }
+
+}

external/ikvm/classpath/java/util/concurrent/atomic/AtomicReference.java

@@ -0,0 +1,142 @@
+/*
+ * 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.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+package java.util.concurrent.atomic;
+
+/**
+ * An object reference that may be updated atomically. See the {@link
+ * java.util.concurrent.atomic} package specification for description
+ * of the properties of atomic variables.
+ * @since 1.5
+ * @author Doug Lea
+ * @param <V> The type of object referred to by this reference
+ */
+public class AtomicReference<V>  implements java.io.Serializable {
+    private static final long serialVersionUID = -1848883965231344442L;
+
+    private volatile V value;
+
+    /**
+     * Creates a new AtomicReference with the given initial value.
+     *
+     * @param initialValue the initial value
+     */
+    public AtomicReference(V initialValue) {
+        value = initialValue;
+    }
+
+    /**
+     * Creates a new AtomicReference with null initial value.
+     */
+    public AtomicReference() {
+    }
+
+    /**
+     * Gets the current value.
+     *
+     * @return the current value
+     */
+    public final V get() {
+        return value;
+    }
+
+    /**
+     * Sets to the given value.
+     *
+     * @param newValue the new value
+     */
+    public final void set(V newValue) {
+        value = newValue;
+    }
+
+    /**
+     * Eventually sets to the given value.
+     *
+     * @param newValue the new value
+     * @since 1.6
+     */
+    public final void lazySet(V newValue) {
+        value = newValue;
+    }
+
+    /**
+     * Atomically sets the value to the given updated value
+     * if the current value {@code ==} the expected value.
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful. False return indicates that
+     * the actual value was not equal to the expected value.
+     */
+    public final native boolean compareAndSet(V expect, V update);
+
+    /**
+     * Atomically sets the value to the given updated value
+     * if the current value {@code ==} the expected value.
+     *
+     * <p>May <a href="package-summary.html#Spurious">fail spuriously</a>
+     * and does not provide ordering guarantees, so is only rarely an
+     * appropriate alternative to {@code compareAndSet}.
+     *
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful.
+     */
+    public final boolean weakCompareAndSet(V expect, V update) {
+        return compareAndSet(expect, update);
+    }
+
+    /**
+     * Atomically sets to the given value and returns the old value.
+     *
+     * @param newValue the new value
+     * @return the previous value
+     */
+    public final V getAndSet(V newValue) {
+        while (true) {
+            V x = get();
+            if (compareAndSet(x, newValue))
+                return x;
+        }
+    }
+
+    /**
+     * Returns the String representation of the current value.
+     * @return the String representation of the current value.
+     */
+    public String toString() {
+        return String.valueOf(get());
+    }
+
+}

external/ikvm/classpath/java/util/concurrent/atomic/AtomicReferenceArray.java

@@ -0,0 +1,206 @@
+/*
+ * 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.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+package java.util.concurrent.atomic;
+
+import java.lang.reflect.Array;
+import java.util.Arrays;
+import sun.misc.Unsafe;
+
+/**
+ * An array of object references in which elements may be updated
+ * atomically.  See the {@link java.util.concurrent.atomic} package
+ * specification for description of the properties of atomic
+ * variables.
+ * @since 1.5
+ * @author Doug Lea
+ * @param <E> The base class of elements held in this array
+ */
+public class AtomicReferenceArray<E> implements java.io.Serializable {
+    private static final long serialVersionUID = -6209656149925076980L;
+
+    private static final Unsafe unsafe;
+    private static final long arrayFieldOffset;
+    private final Object[] array; // must have exact type Object[]
+
+    static {
+        try {
+            unsafe = Unsafe.getUnsafe();
+            arrayFieldOffset = unsafe.objectFieldOffset
+                (AtomicReferenceArray.class.getDeclaredField("array"));
+        } catch (Exception e) {
+            throw new Error(e);
+        }
+    }
+
+    /**
+     * Creates a new AtomicReferenceArray of the given length, with all
+     * elements initially null.
+     *
+     * @param length the length of the array
+     */
+    public AtomicReferenceArray(int length) {
+        array = new Object[length];
+    }
+
+    /**
+     * Creates a new AtomicReferenceArray with the same length as, and
+     * all elements copied from, the given array.
+     *
+     * @param array the array to copy elements from
+     * @throws NullPointerException if array is null
+     */
+    public AtomicReferenceArray(E[] array) {
+        // Visibility guaranteed by final field guarantees
+        this.array = Arrays.copyOf(array, array.length, Object[].class);
+    }
+
+    /**
+     * Returns the length of the array.
+     *
+     * @return the length of the array
+     */
+    public final int length() {
+        return array.length;
+    }
+
+    /**
+     * Gets the current value at position {@code i}.
+     *
+     * @param i the index
+     * @return the current value
+     */
+    public final native E get(int i);
+
+    /**
+     * Sets the element at position {@code i} to the given value.
+     *
+     * @param i the index
+     * @param newValue the new value
+     */
+    public final native void set(int i, E newValue);
+
+    /**
+     * Eventually sets the element at position {@code i} to the given value.
+     *
+     * @param i the index
+     * @param newValue the new value
+     * @since 1.6
+     */
+    public final void lazySet(int i, E newValue) {
+        set(i, newValue);
+    }
+
+
+    /**
+     * Atomically sets the element at position {@code i} to the given
+     * value and returns the old value.
+     *
+     * @param i the index
+     * @param newValue the new value
+     * @return the previous value
+     */
+    public final E getAndSet(int i, E newValue) {
+        while (true) {
+            E current = get(i);
+            if (compareAndSet(i, current, newValue))
+                return current;
+        }
+    }
+
+    /**
+     * Atomically sets the element at position {@code i} to the given
+     * updated value if the current value {@code ==} the expected value.
+     *
+     * @param i the index
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful. False return indicates that
+     * the actual value was not equal to the expected value.
+     */
+    public final native boolean compareAndSet(int i, E expect, E update);
+
+    /**
+     * Atomically sets the element at position {@code i} to the given
+     * updated value if the current value {@code ==} the expected value.
+     *
+     * <p>May <a href="package-summary.html#Spurious">fail spuriously</a>
+     * and does not provide ordering guarantees, so is only rarely an
+     * appropriate alternative to {@code compareAndSet}.
+     *
+     * @param i the index
+     * @param expect the expected value
+     * @param update the new value
+     * @return true if successful.
+     */
+    public final boolean weakCompareAndSet(int i, E expect, E update) {
+        return compareAndSet(i, expect, update);
+    }
+
+    /**
+     * Returns the String representation of the current values of array.
+     * @return the String representation of the current values of array
+     */
+    public String toString() {
+        int iMax = array.length - 1;
+        if (iMax == -1)
+            return "[]";
+
+        StringBuilder b = new StringBuilder();
+        b.append('[');
+        for (int i = 0; ; i++) {
+            b.append(get(i));
+            if (i == iMax)
+                return b.append(']').toString();
+            b.append(',').append(' ');
+        }
+    }
+
+    /**
+     * Reconstitutes the instance from a stream (that is, deserializes it).
+     * @param s the stream
+     */
+    private void readObject(java.io.ObjectInputStream s)
+        throws java.io.IOException, ClassNotFoundException {
+        // Note: This must be changed if any additional fields are defined
+        Object a = s.readFields().get("array", null);
+        if (a == null || !a.getClass().isArray())
+            throw new java.io.InvalidObjectException("Not array type");
+        if (a.getClass() != Object[].class)
+            a = Arrays.copyOf((Object[])a, Array.getLength(a), Object[].class);
+        unsafe.putObjectVolatile(this, arrayFieldOffset, a);
+    }
+
+}