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root/jsr166/jsr166/src/test/tck/JSR166TestCase.java
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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.207 by jsr166, Thu Nov 3 20:41:32 2016 UTC vs.
Revision 1.208 by jsr166, Sat Nov 5 16:09:50 2016 UTC

# Line 41 | Line 41 | import java.security.ProtectionDomain;
41   import java.security.SecurityPermission;
42   import java.util.ArrayList;
43   import java.util.Arrays;
44 + import java.util.Collection;
45   import java.util.Collections;
46   import java.util.Date;
47   import java.util.Enumeration;
# Line 1827 | Line 1828 | public class JSR166TestCase extends Test
1828          }
1829      }
1830  
1831 +    void assertImmutable(Object o) {
1832 +        if (o instanceof Collection) {
1833 +            assertThrows(
1834 +                UnsupportedOperationException.class,
1835 +                new Runnable() { public void run() {
1836 +                        ((Collection) o).add(null);}});
1837 +        }
1838 +    }
1839 +    
1840      @SuppressWarnings("unchecked")
1841      <T> T serialClone(T o) {
1842          try {
1843              ObjectInputStream ois = new ObjectInputStream
1844                  (new ByteArrayInputStream(serialBytes(o)));
1845              T clone = (T) ois.readObject();
1846 +            if (o == clone) assertImmutable(o);
1847              assertSame(o.getClass(), clone.getClass());
1848              return clone;
1849          } catch (Throwable fail) {
# Line 1841 | Line 1852 | public class JSR166TestCase extends Test
1852          }
1853      }
1854  
1855 +    /**
1856 +     * If o implements Cloneable and has a public clone method,
1857 +     * returns a clone of o, else null.
1858 +     */
1859 +    @SuppressWarnings("unchecked")
1860 +    <T> T cloneableClone(T o) {
1861 +        if (!(o instanceof Cloneable)) return null;
1862 +        final T clone;
1863 +        try {
1864 +            clone = (T) o.getClass().getMethod("clone").invoke(o);
1865 +        } catch (NoSuchMethodException ok) {
1866 +            return null;
1867 +        } catch (ReflectiveOperationException unexpected) {
1868 +            throw new Error(unexpected);
1869 +        }
1870 +        assertNotSame(o, clone); // not 100% guaranteed by spec
1871 +        assertSame(o.getClass(), clone.getClass());
1872 +        return clone;
1873 +    }
1874 +
1875      public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1876                               Runnable... throwingActions) {
1877          for (Runnable throwingAction : throwingActions) {

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