# HG changeset patch
# User Jaroslav Tulach <jtulach@netbeans.org>
# Date 1353048943 -3600
# Node ID eb7c3802b3b79a06bddc931809dc81c5300864d5
# Parent  70e7710a65dc4170f7032149a2214143b40bdd53# Parent  d29326a16822cca7dc5e0dfbb5a3556b2095fa9c
Replacing reference to System.arraycopy with our own re-implementation

diff -r 70e7710a65dc -r eb7c3802b3b7 emul/src/main/java/java/io/ByteArrayInputStream.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emul/src/main/java/java/io/ByteArrayInputStream.java	Fri Nov 16 07:55:43 2012 +0100
@@ -0,0 +1,283 @@
+/*
+ * Copyright (c) 1994, 2010, 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 java.io;
+
+/**
+ * A <code>ByteArrayInputStream</code> contains
+ * an internal buffer that contains bytes that
+ * may be read from the stream. An internal
+ * counter keeps track of the next byte to
+ * be supplied by the <code>read</code> method.
+ * <p>
+ * Closing a <tt>ByteArrayInputStream</tt> has no effect. The methods in
+ * this class can be called after the stream has been closed without
+ * generating an <tt>IOException</tt>.
+ *
+ * @author  Arthur van Hoff
+ * @see     java.io.StringBufferInputStream
+ * @since   JDK1.0
+ */
+public
+class ByteArrayInputStream extends InputStream {
+
+    /**
+     * An array of bytes that was provided
+     * by the creator of the stream. Elements <code>buf[0]</code>
+     * through <code>buf[count-1]</code> are the
+     * only bytes that can ever be read from the
+     * stream;  element <code>buf[pos]</code> is
+     * the next byte to be read.
+     */
+    protected byte buf[];
+
+    /**
+     * The index of the next character to read from the input stream buffer.
+     * This value should always be nonnegative
+     * and not larger than the value of <code>count</code>.
+     * The next byte to be read from the input stream buffer
+     * will be <code>buf[pos]</code>.
+     */
+    protected int pos;
+
+    /**
+     * The currently marked position in the stream.
+     * ByteArrayInputStream objects are marked at position zero by
+     * default when constructed.  They may be marked at another
+     * position within the buffer by the <code>mark()</code> method.
+     * The current buffer position is set to this point by the
+     * <code>reset()</code> method.
+     * <p>
+     * If no mark has been set, then the value of mark is the offset
+     * passed to the constructor (or 0 if the offset was not supplied).
+     *
+     * @since   JDK1.1
+     */
+    protected int mark = 0;
+
+    /**
+     * The index one greater than the last valid character in the input
+     * stream buffer.
+     * This value should always be nonnegative
+     * and not larger than the length of <code>buf</code>.
+     * It  is one greater than the position of
+     * the last byte within <code>buf</code> that
+     * can ever be read  from the input stream buffer.
+     */
+    protected int count;
+
+    /**
+     * Creates a <code>ByteArrayInputStream</code>
+     * so that it  uses <code>buf</code> as its
+     * buffer array.
+     * The buffer array is not copied.
+     * The initial value of <code>pos</code>
+     * is <code>0</code> and the initial value
+     * of  <code>count</code> is the length of
+     * <code>buf</code>.
+     *
+     * @param   buf   the input buffer.
+     */
+    public ByteArrayInputStream(byte buf[]) {
+        this.buf = buf;
+        this.pos = 0;
+        this.count = buf.length;
+    }
+
+    /**
+     * Creates <code>ByteArrayInputStream</code>
+     * that uses <code>buf</code> as its
+     * buffer array. The initial value of <code>pos</code>
+     * is <code>offset</code> and the initial value
+     * of <code>count</code> is the minimum of <code>offset+length</code>
+     * and <code>buf.length</code>.
+     * The buffer array is not copied. The buffer's mark is
+     * set to the specified offset.
+     *
+     * @param   buf      the input buffer.
+     * @param   offset   the offset in the buffer of the first byte to read.
+     * @param   length   the maximum number of bytes to read from the buffer.
+     */
+    public ByteArrayInputStream(byte buf[], int offset, int length) {
+        this.buf = buf;
+        this.pos = offset;
+        this.count = Math.min(offset + length, buf.length);
+        this.mark = offset;
+    }
+
+    /**
+     * Reads the next byte of data from this input stream. The value
+     * byte is returned as an <code>int</code> in the range
+     * <code>0</code> to <code>255</code>. If no byte is available
+     * because the end of the stream has been reached, the value
+     * <code>-1</code> is returned.
+     * <p>
+     * This <code>read</code> method
+     * cannot block.
+     *
+     * @return  the next byte of data, or <code>-1</code> if the end of the
+     *          stream has been reached.
+     */
+    public synchronized int read() {
+        return (pos < count) ? (buf[pos++] & 0xff) : -1;
+    }
+
+    /**
+     * Reads up to <code>len</code> bytes of data into an array of bytes
+     * from this input stream.
+     * If <code>pos</code> equals <code>count</code>,
+     * then <code>-1</code> is returned to indicate
+     * end of file. Otherwise, the  number <code>k</code>
+     * of bytes read is equal to the smaller of
+     * <code>len</code> and <code>count-pos</code>.
+     * If <code>k</code> is positive, then bytes
+     * <code>buf[pos]</code> through <code>buf[pos+k-1]</code>
+     * are copied into <code>b[off]</code>  through
+     * <code>b[off+k-1]</code> in the manner performed
+     * by <code>System.arraycopy</code>. The
+     * value <code>k</code> is added into <code>pos</code>
+     * and <code>k</code> is returned.
+     * <p>
+     * This <code>read</code> method cannot block.
+     *
+     * @param   b     the buffer into which the data is read.
+     * @param   off   the start offset in the destination array <code>b</code>
+     * @param   len   the maximum number of bytes read.
+     * @return  the total number of bytes read into the buffer, or
+     *          <code>-1</code> if there is no more data because the end of
+     *          the stream has been reached.
+     * @exception  NullPointerException If <code>b</code> is <code>null</code>.
+     * @exception  IndexOutOfBoundsException If <code>off</code> is negative,
+     * <code>len</code> is negative, or <code>len</code> is greater than
+     * <code>b.length - off</code>
+     */
+    public synchronized int read(byte b[], int off, int len) {
+        if (b == null) {
+            throw new NullPointerException();
+        } else if (off < 0 || len < 0 || len > b.length - off) {
+            throw new IndexOutOfBoundsException();
+        }
+
+        if (pos >= count) {
+            return -1;
+        }
+
+        int avail = count - pos;
+        if (len > avail) {
+            len = avail;
+        }
+        if (len <= 0) {
+            return 0;
+        }
+        PushbackInputStream.arraycopy(buf, pos, b, off, len);
+        pos += len;
+        return len;
+    }
+
+    /**
+     * Skips <code>n</code> bytes of input from this input stream. Fewer
+     * bytes might be skipped if the end of the input stream is reached.
+     * The actual number <code>k</code>
+     * of bytes to be skipped is equal to the smaller
+     * of <code>n</code> and  <code>count-pos</code>.
+     * The value <code>k</code> is added into <code>pos</code>
+     * and <code>k</code> is returned.
+     *
+     * @param   n   the number of bytes to be skipped.
+     * @return  the actual number of bytes skipped.
+     */
+    public synchronized long skip(long n) {
+        long k = count - pos;
+        if (n < k) {
+            k = n < 0 ? 0 : n;
+        }
+
+        pos += k;
+        return k;
+    }
+
+    /**
+     * Returns the number of remaining bytes that can be read (or skipped over)
+     * from this input stream.
+     * <p>
+     * The value returned is <code>count&nbsp;- pos</code>,
+     * which is the number of bytes remaining to be read from the input buffer.
+     *
+     * @return  the number of remaining bytes that can be read (or skipped
+     *          over) from this input stream without blocking.
+     */
+    public synchronized int available() {
+        return count - pos;
+    }
+
+    /**
+     * Tests if this <code>InputStream</code> supports mark/reset. The
+     * <code>markSupported</code> method of <code>ByteArrayInputStream</code>
+     * always returns <code>true</code>.
+     *
+     * @since   JDK1.1
+     */
+    public boolean markSupported() {
+        return true;
+    }
+
+    /**
+     * Set the current marked position in the stream.
+     * ByteArrayInputStream objects are marked at position zero by
+     * default when constructed.  They may be marked at another
+     * position within the buffer by this method.
+     * <p>
+     * If no mark has been set, then the value of the mark is the
+     * offset passed to the constructor (or 0 if the offset was not
+     * supplied).
+     *
+     * <p> Note: The <code>readAheadLimit</code> for this class
+     *  has no meaning.
+     *
+     * @since   JDK1.1
+     */
+    public void mark(int readAheadLimit) {
+        mark = pos;
+    }
+
+    /**
+     * Resets the buffer to the marked position.  The marked position
+     * is 0 unless another position was marked or an offset was specified
+     * in the constructor.
+     */
+    public synchronized void reset() {
+        pos = mark;
+    }
+
+    /**
+     * Closing a <tt>ByteArrayInputStream</tt> has no effect. The methods in
+     * this class can be called after the stream has been closed without
+     * generating an <tt>IOException</tt>.
+     * <p>
+     */
+    public void close() throws IOException {
+    }
+
+}