test/hotspot/jtreg/compiler/arraycopy/TestIllegalArrayCopyBeforeInfiniteLoop.java

/*
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 *
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 * 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,
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/**
 * @test
 * @bug 8272131
 * @requires vm.compiler2.enabled
 * @summary ArrayCopy with negative index before infinite loop
 * @run main/othervm -Xbatch -XX:-TieredCompilation
 *                   -XX:CompileCommand=compileonly,"*TestIllegalArrayCopyBeforeInfiniteLoop::foo"
 *                   compiler.arraycopy.TestIllegalArrayCopyBeforeInfiniteLoop
 */

package compiler.arraycopy;

import java.util.Arrays;

public class TestIllegalArrayCopyBeforeInfiniteLoop {
    private static char src[] = new char[10];
    private static int count = 0;
    private static final int iter = 10_000;

    public static void main(String[] args) throws Exception {
        for (int i = 0; i < iter; ++i) {
            foo();
        }
        if (count != iter) {
            throw new RuntimeException("test failed");
        }
    }

    static void foo() {
        try {
            Arrays.copyOfRange(src, -1, 128);
            do {
            } while (true);
        } catch (ArrayIndexOutOfBoundsException ex) {
            count++;
        }
    }
}