使用ThreadLocal内存泄漏进行Spring-boot

Question

我创建了spring boot应用程序，当调用rest端点时触发testng测试。对于报告，我使用的是ExtentReport，文档位于：http://extentreports.com/docs/versions/3/java/

以下是文档中的完整代码：

public class ExtentTestNGITestListener implements ITestListener {

    private static ExtentReports extent = ExtentManager.createInstance("extent.html");
    private static ThreadLocal parentTest = new ThreadLocal();
    private static ThreadLocal test = new ThreadLocal();

    @Override
    public synchronized void onStart(ITestContext context) {
        ExtentTest parent = extent.createTest(getClass().getName());
        parentTest.set(parent);
    }

    @Override
    public synchronized void onFinish(ITestContext context) {
        extent.flush();
    }

    @Override
    public synchronized void onTestStart(ITestResult result) {
        ExtentTest child = parentTest.get().createNode(result.getMethod().getMethodName());
        test.set(child);
    }

    @Override
    public synchronized void onTestSuccess(ITestResult result) {
        test.get().pass("Test passed");
    }

    @Override
    public synchronized void onTestFailure(ITestResult result) {
        test.get().fail(result.getThrowable());
    }

    @Override
    public synchronized void onTestSkipped(ITestResult result) {
        test.get().skip(result.getThrowable());
    }

    @Override
    public synchronized void onTestFailedButWithinSuccessPercentage(ITestResult result) {

    }
}

public class ExtentManager {

    private static ExtentReports extent;

    public static ExtentReports getInstance() {
        if (extent == null)
            createInstance("test-output/extent.html");

        return extent;
    }

    public static ExtentReports createInstance(String fileName) {
        ExtentHtmlReporter htmlReporter = new ExtentHtmlReporter(fileName);
        htmlReporter.config().setTestViewChartLocation(ChartLocation.BOTTOM);
        htmlReporter.config().setChartVisibilityOnOpen(true);
        htmlReporter.config().setTheme(Theme.STANDARD);
        htmlReporter.config().setDocumentTitle(fileName);
        htmlReporter.config().setEncoding("utf-8");
        htmlReporter.config().setReportName(fileName);

        extent = new ExtentReports();
        extent.attachReporter(htmlReporter);

        return extent;
    }
}

由于我的应用程序正在持续工作，如果上面的代码可能会导致高度讨论的内存泄漏here和here，那么我很有意思？如果不是为什么？