/*
 * © 2025 CodeLibs, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0

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  regarding copyright ownership.  The ASF licenses this file
  to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance
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 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0

     * This method is called after dependency injection is complete.
     * It sets up response fields, search fields, facet fields, sort fields, and other
     * field configurations based on the application configuration.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }

implies observing the write to <code>a</code>, so this program could
print an empty string too.
Worse, there is no guarantee that the write to <code>done</code> will ever
be observed by <code>main</code>, since there are no synchronization
events between the two threads.  The loop in <code>main</code> is not
guaranteed to finish.
</p>

<p>
There are subtler variants on this theme, such as this program.
</p>

<pre>

    val testCoverage: TestCoverage,
    val stage: Stage,
) : Project({
        this.id(testCoverage.asId(model))
        this.name = testCoverage.asName()
    }) {
    val functionalTests: List<BaseGradleBuildType> = functionalTestBucketProvider.createFunctionalTestsFor(stage, testCoverage)

    init {
        functionalTests.forEach(this::buildType)
    }

        $(document).on('input', '.filter-search-input', function() {
            var query = $(this).val().toLowerCase();
            $(this).closest('.filter-dropdown-menu').find('.filter-check-item').each(function() {
                var label = $(this).find('.filter-check-label').text().toLowerCase();
                $(this).toggle(label.indexOf(query) !== -1);
            });
        });

        // Filter clear group handler

        this.sizeForDelete = sizeForDelete;
    }

    public void setScrollForDelete(String scrollForDelete) {
        this.scrollForDelete = scrollForDelete;
    }

    public void setSizeForCursor(int sizeForCursor) {
        this.sizeForCursor = sizeForCursor;
    }

    public void setScrollForCursor(String scrollForCursor) {
        this.scrollForCursor = scrollForCursor;
    }

            ExecutionEventCatapult eventCatapult) {
        this.logger = LoggerFactory.getLogger(getClass());
        this.lifecycleDebugLogger = lifecycleDebugLogger;
        this.lifeCycleExecutionPlanCalculator = lifeCycleExecutionPlanCalculator;
        this.eventCatapult = eventCatapult;
    }

    /**
     * Ctor needed for UT.
     */
    BuilderCommon(