1 files changed, 0 insertions, 191 deletions
diff --git a/kamon-core/src/main/java/kamon/jsr166/LongMaxUpdater.java b/kamon-core/src/main/java/kamon/jsr166/LongMaxUpdater.java
deleted file mode 100644
index fc9ea4e5..00000000
--- a/kamon-core/src/main/java/kamon/jsr166/LongMaxUpdater.java
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * 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 kamon.jsr166;
-import java.io.Serializable;
-
-/**
- * One or more variables that together maintain a running {@code long}
- * maximum with initial value {@code Long.MIN_VALUE}.  When updates
- * (method {@link #update}) are contended across threads, the set of
- * variables may grow dynamically to reduce contention.  Method {@link
- * #max} (or, equivalently, {@link #longValue}) returns the current
- * maximum across the variables maintaining updates.
- *
- * <p>This class extends {@link Number}, but does <em>not</em> define
- * methods such as {@code equals}, {@code hashCode} and {@code
- * compareTo} because instances are expected to be mutated, and so are
- * not useful as collection keys.
- *
- * <p><em>jsr166e note: This class is targeted to be placed in
- * java.util.concurrent.atomic.</em>
- *
- * @since 1.8
- * @author Doug Lea
- */
-public class LongMaxUpdater extends Striped64 implements Serializable {
-    private static final long serialVersionUID = 7249069246863182397L;
-
-    /**
-     * Version of max for use in retryUpdate
-     */
-    final long fn(long v, long x) { return v > x ? v : x; }
-
-    /**
-     * Creates a new instance with initial maximum of {@code
-     * Long.MIN_VALUE}.
-     */
-    public LongMaxUpdater() {
-        base = Long.MIN_VALUE;
-    }
-
-    /**
-     * Creates a new instance with the given initialValue
-     */
-    public LongMaxUpdater(long initialValue) {
-        base = initialValue;
-    }
-
-
-    /**
-     * Updates the maximum to be at least the given value.
-     *
-     * @param x the value to update
-     */
-    public void update(long x) {
-        Cell[] as; long b, v; HashCode hc; Cell a; int n;
-        if ((as = cells) != null ||
-            (b = base) < x && !casBase(b, x)) {
-            boolean uncontended = true;
-            int h = (hc = threadHashCode.get()).code;
-            if (as == null || (n = as.length) < 1 ||
-                (a = as[(n - 1) & h]) == null ||
-                ((v = a.value) < x && !(uncontended = a.cas(v, x))))
-                retryUpdate(x, hc, uncontended);
-        }
-    }
-
-    /**
-     * Returns the current maximum.  The returned value is
-     * <em>NOT</em> an atomic snapshot; invocation in the absence of
-     * concurrent updates returns an accurate result, but concurrent
-     * updates that occur while the value is being calculated might
-     * not be incorporated.
-     *
-     * @return the maximum
-     */
-    public long max() {
-        Cell[] as = cells;
-        long max = base;
-        if (as != null) {
-            int n = as.length;
-            long v;
-            for (int i = 0; i < n; ++i) {
-                Cell a = as[i];
-                if (a != null && (v = a.value) > max)
-                    max = v;
-            }
-        }
-        return max;
-    }
-
-    /**
-     * Resets variables maintaining updates to {@code Long.MIN_VALUE}.
-     * This method may be a useful alternative to creating a new
-     * updater, but is only effective if there are no concurrent
-     * updates.  Because this method is intrinsically racy, it should
-     * only be used when it is known that no threads are concurrently
-     * updating.
-     */
-    public void reset() {
-        internalReset(Long.MIN_VALUE);
-    }
-
-    /**
-     * Equivalent in effect to {@link #max} followed by {@link
-     * #reset}. This method may apply for example during quiescent
-     * points between multithreaded computations.  If there are
-     * updates concurrent with this method, the returned value is
-     * <em>not</em> guaranteed to be the final value occurring before
-     * the reset.
-     *
-     * @return the maximum
-     */
-    public long maxThenReset(long newValue) {
-        Cell[] as = cells;
-        long max = base;
-        base = newValue;
-        if (as != null) {
-            int n = as.length;
-            for (int i = 0; i < n; ++i) {
-                Cell a = as[i];
-                if (a != null) {
-                    long v = a.value;
-                    a.value = newValue;
-                    if (v > max)
-                        max = v;
-                }
-            }
-        }
-        return max;
-    }
-
-    /**
-     * Returns the String representation of the {@link #max}.
-     * @return the String representation of the {@link #max}
-     */
-    public String toString() {
-        return Long.toString(max());
-    }
-
-    /**
-     * Equivalent to {@link #max}.
-     *
-     * @return the maximum
-     */
-    public long longValue() {
-        return max();
-    }
-
-    /**
-     * Returns the {@link #max} as an {@code int} after a narrowing
-     * primitive conversion.
-     */
-    public int intValue() {
-        return (int)max();
-    }
-
-    /**
-     * Returns the {@link #max} as a {@code float}
-     * after a widening primitive conversion.
-     */
-    public float floatValue() {
-        return (float)max();
-    }
-
-    /**
-     * Returns the {@link #max} as a {@code double} after a widening
-     * primitive conversion.
-     */
-    public double doubleValue() {
-        return (double)max();
-    }
-
-    private void writeObject(java.io.ObjectOutputStream s)
-        throws java.io.IOException {
-        s.defaultWriteObject();
-        s.writeLong(max());
-    }
-
-    private void readObject(java.io.ObjectInputStream s)
-        throws java.io.IOException, ClassNotFoundException {
-        s.defaultReadObject();
-        busy = 0;
-        cells = null;
-        base = s.readLong();
-    }
-
-}