@Test(expectedExceptions = InvalidImageStateException.class) public void testNullImageSizeThrowsInvalidImageStateException() throws Throwable { AttachedDiskCreateSpec disk = new AttachedDiskCreateSpec(); disk.setBootDisk(true); ImageEntity image = new ImageEntity(); image.setSize(null); List<Throwable> warnings = new ArrayList<>(); VmDcpBackend.updateBootDiskCapacity(Arrays.asList(disk), image, warnings); }