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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug 8000354
 * @summary Test
 * @compile -XDignore.symbol.file CustomProvider.java MyXmlPropertiesProvider.java
 * @run main/othervm -Dsun.util.spi.XmlPropertiesProvider=MyXmlPropertiesProvider CustomProvider
 */

import java.util.*;
import java.io.*;

/**
 * Sanity test to verify that the property sun.util.spi.XmlPropertiesProvider
 * can be used to specify a custom provider for loading/storing properties
 * in XML format.
 */
public class CustomProvider {

    public static void main(String[] args) throws IOException {
        String provider = System.getProperty("sun.util.spi.XmlPropertiesProvider");
        assertTrue(provider != null, "sun.util.spi.XmlPropertiesProvider not set");

        OutputStream out = new ByteArrayOutputStream();
        InputStream in = new ByteArrayInputStream(new byte[100]);

        Properties props;

        props = new Properties();
        props.loadFromXML(in);

        props = System.getProperties();
        props.storeToXML(out, "comment");
        props.storeToXML(out, "comment", "UTF-8");

        // check that the provider's load and store methods have been invoked

        assertTrue(MyXmlPropertiesProvider.createCount() == 1,
            "Provider should only be created once");
        assertTrue(MyXmlPropertiesProvider.loadCount() == 1,
            "load method expected to be called once");
        assertTrue(MyXmlPropertiesProvider.storeCount() == 2,
             "store method expected to be called twice");
    }

    static void assertTrue(boolean b, String msg) {
        if (!b) throw new RuntimeException(msg);
    }
}