176                     .read(new ByteArrayInputStream(b))
 177                     .requires()
 178                     .stream()
 179                     .map(mdr -> mdr.name())
 180                     .filter(nm -> !nm.equals("java.base"))
 181                     .collect(Collectors.toSet());
 182             Assert.assertEquals(requires, Set.of("java.logging"));
 183 
 184             // do we have the right resource?
 185             b = reader.getResource("/m1/resource.txt");
 186             Assert.assertEquals(b, resource);
 187 
 188             // do we have the right class?
 189             b = reader.getResource("/m1/p/Main.class");
 190             Class<?> clazz = (new ByteArrayClassLoader()).loadClass("p.Main", b);
 191             MethodHandle getVersion = MethodHandles.lookup()
 192                     .findVirtual(clazz, "getVersion", MethodType.methodType(int.class));
 193             int version = (int) getVersion.invoke(clazz.getConstructor().newInstance());
 194             Assert.assertEquals(version, JarFile.runtimeVersion().major());
 195         }
 196         // Very rarely this test fails on Windows due to:
 197         //     Error. failed to clean up files after test
 198         // and this mesg shows the problem file (variable jimage):
 199         //     Can't delete T:\\testOutput\\test-support\\jtreg_open_test_jdk_core_tools\\scratch\\0\\myimage\\lib\\modules
 200         // The failure happens more with async monitor deflation
 201         // so I think that an inflated monitor is keeping the above
 202         // try-with-resources block from cleaning up in a timely
 203         // fashion. Forcing a GC here appears to solve the problem.
 204         System.gc();
 205     }
 206 
 207     @Test
 208     public void noLoggingTest() throws Throwable {
 209         if (ignoreTest()) return;
 210 
 211         jlink("m1-no-logging.jar", "no-logging-image");
 212         runImage("no-logging-image", false);
 213     }
 214 
 215     @Test
 216     public void loggingTest() throws Throwable {
 217         if (ignoreTest()) return;
 218 
 219         jlink("m1-logging.jar", "logging-image");
 220         runImage("logging-image", true);
 221 
 222     }
 223 
 224     // java.base.jmod must exist for this test to make sense

 176                     .read(new ByteArrayInputStream(b))
 177                     .requires()
 178                     .stream()
 179                     .map(mdr -> mdr.name())
 180                     .filter(nm -> !nm.equals("java.base"))
 181                     .collect(Collectors.toSet());
 182             Assert.assertEquals(requires, Set.of("java.logging"));
 183 
 184             // do we have the right resource?
 185             b = reader.getResource("/m1/resource.txt");
 186             Assert.assertEquals(b, resource);
 187 
 188             // do we have the right class?
 189             b = reader.getResource("/m1/p/Main.class");
 190             Class<?> clazz = (new ByteArrayClassLoader()).loadClass("p.Main", b);
 191             MethodHandle getVersion = MethodHandles.lookup()
 192                     .findVirtual(clazz, "getVersion", MethodType.methodType(int.class));
 193             int version = (int) getVersion.invoke(clazz.getConstructor().newInstance());
 194             Assert.assertEquals(version, JarFile.runtimeVersion().major());
 195         }









 196     }
 197 
 198     @Test
 199     public void noLoggingTest() throws Throwable {
 200         if (ignoreTest()) return;
 201 
 202         jlink("m1-no-logging.jar", "no-logging-image");
 203         runImage("no-logging-image", false);
 204     }
 205 
 206     @Test
 207     public void loggingTest() throws Throwable {
 208         if (ignoreTest()) return;
 209 
 210         jlink("m1-logging.jar", "logging-image");
 211         runImage("logging-image", true);
 212 
 213     }
 214 
 215     // java.base.jmod must exist for this test to make sense