test/java/util/Locale/Bug6989440.java

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/*
 * @test
 * @bug 6989440
 * @summary Verify ConcurrentModificationException is not thrown with multiple
 *     thread accesses.
 * @compile -XDignore.symbol.file=true Bug6989440.java
 * @run main Bug6989440
 */
import java.text.spi.DateFormatProvider;
import java.util.spi.LocaleNameProvider;
import java.util.spi.LocaleServiceProvider;
import java.util.spi.TimeZoneNameProvider;

import sun.util.LocaleServiceProviderPool;

public class Bug6989440 {
    public static void main(String[] args) {
        TestThread t1 = new TestThread(LocaleNameProvider.class);
        TestThread t2 = new TestThread(TimeZoneNameProvider.class);
        TestThread t3 = new TestThread(DateFormatProvider.class);

        t1.start();
        t2.start();
        t3.start();
    }

    static class TestThread extends Thread {
        private Class<? extends LocaleServiceProvider> cls;

        public TestThread(Class<? extends LocaleServiceProvider> providerClass) {
            cls = providerClass;
        }

        public void run() {
            LocaleServiceProviderPool pool = LocaleServiceProviderPool.getPool(cls);
            pool.getAvailableLocales();
        }
    }
}