6795561: (bf) CharBuffer.subSequence() uses wrong capacity value for new buffer
Reviewed-by: sherman, iris
/*
* Copyright 2000-2008 Sun Microsystems, Inc. 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.
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/* Type-specific source code for unit test
*
* Regenerate the BasicX classes via genBasic.sh whenever this file changes.
* We check in the generated source files so that the test tree can be used
* independently of the rest of the source tree.
*/
// -- This file was mechanically generated: Do not edit! -- //
import java.nio.*;
import java.lang.reflect.Method;
public class BasicByte
extends Basic
{
private static void relGet(ByteBuffer b) {
int n = b.capacity();
byte v;
for (int i = 0; i < n; i++)
ck(b, (long)b.get(), (long)((byte)ic(i)));
b.rewind();
}
private static void relGet(ByteBuffer b, int start) {
int n = b.remaining();
byte v;
for (int i = start; i < n; i++)
ck(b, (long)b.get(), (long)((byte)ic(i)));
b.rewind();
}
private static void absGet(ByteBuffer b) {
int n = b.capacity();
byte v;
for (int i = 0; i < n; i++)
ck(b, (long)b.get(), (long)((byte)ic(i)));
b.rewind();
}
private static void bulkGet(ByteBuffer b) {
int n = b.capacity();
byte[] a = new byte[n + 7];
b.get(a, 7, n);
for (int i = 0; i < n; i++)
ck(b, (long)a[i + 7], (long)((byte)ic(i)));
}
private static void relPut(ByteBuffer b) {
int n = b.capacity();
b.clear();
for (int i = 0; i < n; i++)
b.put((byte)ic(i));
b.flip();
}
private static void absPut(ByteBuffer b) {
int n = b.capacity();
b.clear();
for (int i = 0; i < n; i++)
b.put(i, (byte)ic(i));
b.limit(n);
b.position(0);
}
private static void bulkPutArray(ByteBuffer b) {
int n = b.capacity();
b.clear();
byte[] a = new byte[n + 7];
for (int i = 0; i < n; i++)
a[i + 7] = (byte)ic(i);
b.put(a, 7, n);
b.flip();
}
private static void bulkPutBuffer(ByteBuffer b) {
int n = b.capacity();
b.clear();
ByteBuffer c = ByteBuffer.allocate(n + 7);
c.position(7);
for (int i = 0; i < n; i++)
c.put((byte)ic(i));
c.flip();
c.position(7);
b.put(c);
b.flip();
}
//6231529
private static void callReset(ByteBuffer b) {
b.position(0);
b.mark();
b.duplicate().reset();
b.asReadOnlyBuffer().reset();
}
private static void checkSlice(ByteBuffer b, ByteBuffer slice) {
ck(slice, 0, slice.position());
ck(slice, b.remaining(), slice.limit());
ck(slice, b.remaining(), slice.capacity());
if (b.isDirect() != slice.isDirect())
fail("Lost direction", slice);
if (b.isReadOnly() != slice.isReadOnly())
fail("Lost read-only", slice);
}
private static void checkBytes(ByteBuffer b, byte[] bs) {
int n = bs.length;
int p = b.position();
byte v;
if (b.order() == ByteOrder.BIG_ENDIAN) {
for (int i = 0; i < n; i++)
ck(b, b.get(), bs[i]);
} else {
for (int i = n - 1; i >= 0; i--)
ck(b, b.get(), bs[i]);
}
b.position(p);
}
private static void compact(Buffer b) {
try {
Class<?> cl = b.getClass();
Method m = cl.getDeclaredMethod("compact");
m.setAccessible(true);
m.invoke(b);
} catch (Exception e) {
fail(e.getMessage(), b);
}
}
private static void checkInvalidMarkException(final Buffer b) {
tryCatch(b, InvalidMarkException.class, new Runnable() {
public void run() {
b.mark();
compact(b);
b.reset();
}});
}
private static void testViews(int level, ByteBuffer b, boolean direct) {
ShortBuffer sb = b.asShortBuffer();
BasicShort.test(level, sb, direct);
checkBytes(b, new byte[] { 0, (byte)ic(0) });
checkInvalidMarkException(sb);
CharBuffer cb = b.asCharBuffer();
BasicChar.test(level, cb, direct);
checkBytes(b, new byte[] { 0, (byte)ic(0) });
checkInvalidMarkException(cb);
IntBuffer ib = b.asIntBuffer();
BasicInt.test(level, ib, direct);
checkBytes(b, new byte[] { 0, 0, 0, (byte)ic(0) });
checkInvalidMarkException(ib);
LongBuffer lb = b.asLongBuffer();
BasicLong.test(level, lb, direct);
checkBytes(b, new byte[] { 0, 0, 0, 0, 0, 0, 0, (byte)ic(0) });
checkInvalidMarkException(lb);
FloatBuffer fb = b.asFloatBuffer();
BasicFloat.test(level, fb, direct);
checkBytes(b, new byte[] { 0x42, (byte)0xc2, 0, 0 });
checkInvalidMarkException(fb);
DoubleBuffer db = b.asDoubleBuffer();
BasicDouble.test(level, db, direct);
checkBytes(b, new byte[] { 0x40, 0x58, 0x40, 0, 0, 0, 0, 0 });
checkInvalidMarkException(db);
}
private static void testHet(int level, ByteBuffer b) {
int p = b.position();
b.limit(b.capacity());
show(level, b);
out.print(" put:");
b.putChar((char)1);
b.putChar((char)Character.MAX_VALUE);
out.print(" char");
b.putShort((short)1);
b.putShort((short)Short.MAX_VALUE);
out.print(" short");
b.putInt(1);
b.putInt(Integer.MAX_VALUE);
out.print(" int");
b.putLong((long)1);
b.putLong((long)Long.MAX_VALUE);
out.print(" long");
b.putFloat((float)1);
b.putFloat((float)Float.MIN_VALUE);
b.putFloat((float)Float.MAX_VALUE);
out.print(" float");
b.putDouble((double)1);
b.putDouble((double)Double.MIN_VALUE);
b.putDouble((double)Double.MAX_VALUE);
out.print(" double");
out.println();
b.limit(b.position());
b.position(p);
show(level, b);
out.print(" get:");
ck(b, b.getChar(), 1);
ck(b, b.getChar(), Character.MAX_VALUE);
out.print(" char");
ck(b, b.getShort(), 1);
ck(b, b.getShort(), Short.MAX_VALUE);
out.print(" short");
ck(b, b.getInt(), 1);
ck(b, b.getInt(), Integer.MAX_VALUE);
out.print(" int");
ck(b, b.getLong(), 1);
ck(b, b.getLong(), Long.MAX_VALUE);
out.print(" long");
ck(b, (long)b.getFloat(), 1);
ck(b, (long)b.getFloat(), (long)Float.MIN_VALUE);
ck(b, (long)b.getFloat(), (long)Float.MAX_VALUE);
out.print(" float");
ck(b, (long)b.getDouble(), 1);
ck(b, (long)b.getDouble(), (long)Double.MIN_VALUE);
ck(b, (long)b.getDouble(), (long)Double.MAX_VALUE);
out.print(" double");
out.println();
}
private static void tryCatch(Buffer b, Class ex, Runnable thunk) {
boolean caught = false;
try {
thunk.run();
} catch (Throwable x) {
if (ex.isAssignableFrom(x.getClass())) {
caught = true;
} else {
fail(x.getMessage() + " not expected");
}
}
if (!caught)
fail(ex.getName() + " not thrown", b);
}
private static void tryCatch(byte [] t, Class ex, Runnable thunk) {
tryCatch(ByteBuffer.wrap(t), ex, thunk);
}
public static void test(int level, final ByteBuffer b, boolean direct) {
show(level, b);
if (direct != b.isDirect())
fail("Wrong direction", b);
// Gets and puts
relPut(b);
relGet(b);
absGet(b);
bulkGet(b);
absPut(b);
relGet(b);
absGet(b);
bulkGet(b);
bulkPutArray(b);
relGet(b);
bulkPutBuffer(b);
relGet(b);
// Compact
relPut(b);
b.position(13);
b.compact();
b.flip();
relGet(b, 13);
// Exceptions
relPut(b);
b.limit(b.capacity() / 2);
b.position(b.limit());
tryCatch(b, BufferUnderflowException.class, new Runnable() {
public void run() {
b.get();
}});
tryCatch(b, BufferOverflowException.class, new Runnable() {
public void run() {
b.put((byte)42);
}});
// The index must be non-negative and lesss than the buffer's limit.
tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
public void run() {
b.get(b.limit());
}});
tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
public void run() {
b.get(-1);
}});
tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
public void run() {
b.put(b.limit(), (byte)42);
}});
tryCatch(b, InvalidMarkException.class, new Runnable() {
public void run() {
b.position(0);
b.mark();
b.compact();
b.reset();
}});
// Values
b.clear();
b.put((byte)0);
b.put((byte)-1);
b.put((byte)1);
b.put(Byte.MAX_VALUE);
b.put(Byte.MIN_VALUE);
byte v;
b.flip();
ck(b, b.get(), 0);
ck(b, b.get(), (byte)-1);
ck(b, b.get(), 1);
ck(b, b.get(), Byte.MAX_VALUE);
ck(b, b.get(), Byte.MIN_VALUE);
// Comparison
b.rewind();
ByteBuffer b2 = ByteBuffer.allocate(b.capacity());
b2.put(b);
b2.flip();
b.position(2);
b2.position(2);
if (!b.equals(b2)) {
for (int i = 2; i < b.limit(); i++) {
byte x = b.get(i);
byte y = b2.get(i);
if (x != y
)
out.println("[" + i + "] " + x + " != " + y);
}
fail("Identical buffers not equal", b, b2);
}
if (b.compareTo(b2) != 0)
fail("Comparison to identical buffer != 0", b, b2);
b.limit(b.limit() + 1);
b.position(b.limit() - 1);
b.put((byte)99);
b.rewind();
b2.rewind();
if (b.equals(b2))
fail("Non-identical buffers equal", b, b2);
if (b.compareTo(b2) <= 0)
fail("Comparison to shorter buffer <= 0", b, b2);
b.limit(b.limit() - 1);
b.put(2, (byte)42);
if (b.equals(b2))
fail("Non-identical buffers equal", b, b2);
if (b.compareTo(b2) <= 0)
fail("Comparison to lesser buffer <= 0", b, b2);
// Sub, dup
relPut(b);
relGet(b.duplicate());
b.position(13);
relGet(b.duplicate(), 13);
relGet(b.duplicate().slice(), 13);
relGet(b.slice(), 13);
relGet(b.slice().duplicate(), 13);
// Slice
b.position(5);
ByteBuffer sb = b.slice();
checkSlice(b, sb);
b.position(0);
ByteBuffer sb2 = sb.slice();
checkSlice(sb, sb2);
if (!sb.equals(sb2))
fail("Sliced slices do not match", sb, sb2);
if ((sb.hasArray()) && (sb.arrayOffset() != sb2.arrayOffset()))
fail("Array offsets do not match: "
+ sb.arrayOffset() + " != " + sb2.arrayOffset(), sb, sb2);
// Views
b.clear();
b.order(ByteOrder.BIG_ENDIAN);
testViews(level + 1, b, direct);
for (int i = 1; i <= 9; i++) {
b.position(i);
show(level + 1, b);
testViews(level + 2, b, direct);
}
b.position(0);
b.order(ByteOrder.LITTLE_ENDIAN);
testViews(level + 1, b, direct);
// Heterogeneous accessors
b.order(ByteOrder.BIG_ENDIAN);
for (int i = 0; i <= 9; i++) {
b.position(i);
testHet(level + 1, b);
}
b.order(ByteOrder.LITTLE_ENDIAN);
b.position(3);
testHet(level + 1, b);
// Read-only views
b.rewind();
final ByteBuffer rb = b.asReadOnlyBuffer();
if (!b.equals(rb))
fail("Buffer not equal to read-only view", b, rb);
show(level + 1, rb);
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
relPut(rb);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
absPut(rb);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
bulkPutArray(rb);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
bulkPutBuffer(rb);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.compact();
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putChar((char)1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putChar(0, (char)1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putShort((short)1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putShort(0, (short)1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putInt(1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putInt(0, 1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putLong((long)1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putLong(0, (long)1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putFloat((float)1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putFloat(0, (float)1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putDouble((double)1);
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.putDouble(0, (double)1);
}});
if (rb.getClass().getName().startsWith("java.nio.Heap")) {
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.array();
}});
tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
public void run() {
rb.arrayOffset();
}});
if (rb.hasArray())
fail("Read-only heap buffer's backing array is accessible",
rb);
}
// Bulk puts from read-only buffers
b.clear();
rb.rewind();
b.put(rb);
// For byte buffers, test both the direct and non-direct cases
ByteBuffer ob
= (b.isDirect()
? ByteBuffer.allocate(rb.capacity())
: ByteBuffer.allocateDirect(rb.capacity()));
rb.rewind();
ob.put(rb);
relPut(b); // Required by testViews
}
public static void test(final byte [] ba) {
int offset = 47;
int length = 900;
final ByteBuffer b = ByteBuffer.wrap(ba, offset, length);
show(0, b);
ck(b, b.capacity(), ba.length);
ck(b, b.position(), offset);
ck(b, b.limit(), offset + length);
// The offset must be non-negative and no larger than <array.length>.
tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() {
public void run() {
ByteBuffer.wrap(ba, -1, ba.length);
}});
tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() {
public void run() {
ByteBuffer.wrap(ba, ba.length + 1, ba.length);
}});
tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() {
public void run() {
ByteBuffer.wrap(ba, 0, -1);
}});
tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() {
public void run() {
ByteBuffer.wrap(ba, 0, ba.length + 1);
}});
// A NullPointerException will be thrown if the array is null.
tryCatch(ba, NullPointerException.class, new Runnable() {
public void run() {
ByteBuffer.wrap((byte []) null, 0, 5);
}});
tryCatch(ba, NullPointerException.class, new Runnable() {
public void run() {
ByteBuffer.wrap((byte []) null);
}});
}
private static void testAllocate() {
// An IllegalArgumentException will be thrown for negative capacities.
tryCatch((Buffer) null, IllegalArgumentException.class, new Runnable() {
public void run() {
ByteBuffer.allocate(-1);
}});
tryCatch((Buffer) null, IllegalArgumentException.class, new Runnable() {
public void run() {
ByteBuffer.allocateDirect(-1);
}});
}
public static void test() {
testAllocate();
test(0, ByteBuffer.allocate(7 * 1024), false);
test(0, ByteBuffer.wrap(new byte[7 * 1024], 0, 7 * 1024), false);
test(new byte[1024]);
ByteBuffer b = ByteBuffer.allocateDirect(7 * 1024);
for (b.position(0); b.position() < b.limit(); )
ck(b, b.get(), 0);
test(0, b, true);
callReset(ByteBuffer.allocate(10));
}
}