Failed since 2021-05-20:

stdout: [[0.015s][warning][gc] Shenandoah I-U mode sets -XX:-ClassUnloadingWithConcurrentMark; see JDK-8261341 for details
];
 stderr: [Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at TestClassLoaderLeak$Dummy.<clinit>(TestClassLoaderLeak.java:49)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:466)
at TestClassLoaderLeak.load(TestClassLoaderLeak.java:77)
at TestClassLoaderLeak.main(TestClassLoaderLeak.java:121)
]