test/hotspot/jtreg/gc/g1/humongousObjects/TestHumongousClassLoader.java

8217385: JTREG: Clean up, make sure to close resources

*** 154,163 ****
--- 154,164 ----
          Path wrkDir = Paths.get("");
          URL[] url = {wrkDir.toUri().toURL()};
          URLClassLoader urlLoader = new URLClassLoader(url);
  
          Class<?> simpleClassLoaderClass = urlLoader.loadClass(SIMPLE_CLASSLOADER_NAME);
+         urlLoader.close();
  
          ClassLoader simpleClassLoader = (ClassLoader) simpleClassLoaderClass
                  .getConstructor(java.lang.ClassLoader.class)
                  .newInstance(TestHumongousClassLoader.class.getClassLoader());