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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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* 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 ) .
*
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
import sun.java2d.marlin.ArrayCacheConst;
/*
* @ test
* @ bug 8144445
* @ summary Check the ArrayCache getNewLargeSize ( ) method
* @ run main ArrayCacheSizeTest
* @ modules java . desktop / sun . java2d . marlin
*/
public class ArrayCacheSizeTest {
public static void main(String[] args) {
testNewSize();
testNewLargeSize();
}
private static void testNewSize() {
testNewSize(0 , 1 );
testNewSize(0 , 100000 );
testNewSize(4096 , 4097 );
testNewSize(4096 * 16 , 4096 * 16 + 1 );
testNewSize(4096 * 4096 * 4 , 4096 * 4096 * 4 + 1 );
testNewSize(4096 * 4096 * 4 , Integer.MAX_VALUE);
testNewSize(Integer.MAX_VALUE - 1000 , Integer.MAX_VALUE);
testNewSizeExpectAIOB(Integer.MAX_VALUE - 1000 , Integer.MAX_VALUE + 1 );
testNewSizeExpectAIOB(1 , -1 );
testNewSizeExpectAIOB(Integer.MAX_VALUE, -1 );
}
private static void testNewSizeExpectAIOB(final int curSize,
final int needSize) {
try {
testNewSize(curSize, needSize);
throw new RuntimeException("ArrayIndexOutOfBoundsException not thrown" );
} catch (ArrayIndexOutOfBoundsException aiobe) {
System.out.println("ArrayIndexOutOfBoundsException expected." );
} catch (RuntimeException re) {
throw re;
} catch (Throwable th) {
throw new RuntimeException("Unexpected exception" , th);
}
}
private static void testNewSize(final int curSize,
final int needSize) {
int size = ArrayCacheConst.getNewSize(curSize, needSize);
System.out.println("getNewSize(" + curSize + ", " + needSize
+ ") = " + size);
if (size < 0 || size < needSize) {
throw new IllegalStateException("Invalid getNewSize("
+ curSize + ", " + needSize + ") = " + size + " !" );
}
}
private static void testNewLargeSize() {
testNewLargeSize(0 , 1 );
testNewLargeSize(0 , 100000 );
testNewLargeSize(4096 , 4097 );
testNewLargeSize(4096 * 16 , 4096 * 16 + 1 );
testNewLargeSize(4096 * 4096 * 4 , 4096 * 4096 * 4 + 1 );
testNewLargeSize(4096 * 4096 * 4 , Integer.MAX_VALUE);
testNewLargeSize(Integer.MAX_VALUE - 1000 , Integer.MAX_VALUE);
testNewLargeSizeExpectAIOB(Integer.MAX_VALUE - 1000 , Integer.MAX_VALUE + 1 L);
testNewLargeSizeExpectAIOB(1 , -1 L);
testNewLargeSizeExpectAIOB(Integer.MAX_VALUE, -1 L);
}
private static void testNewLargeSizeExpectAIOB(final long curSize,
final long needSize) {
try {
testNewLargeSize(curSize, needSize);
throw new RuntimeException("ArrayIndexOutOfBoundsException not thrown" );
} catch (ArrayIndexOutOfBoundsException aiobe) {
System.out.println("ArrayIndexOutOfBoundsException expected." );
} catch (RuntimeException re) {
throw re;
} catch (Throwable th) {
throw new RuntimeException("Unexpected exception" , th);
}
}
private static void testNewLargeSize(final long curSize,
final long needSize) {
long size = ArrayCacheConst.getNewLargeSize(curSize, needSize);
System.out.println("getNewLargeSize(" + curSize + ", " + needSize
+ ") = " + size);
if (size < 0 || size < needSize || size > Integer.MAX_VALUE) {
throw new IllegalStateException("Invalid getNewLargeSize("
+ curSize + ", " + needSize + ") = " + size + " !" );
}
}
}
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