Session s = openSession(); Transaction t = s.beginTransaction(); // create a new thing with a non-null name Thing thing = new Thing(); thing.setName("one"); s.save(thing); t.commit(); s.close(); s = openSession(); t = s.beginTransaction(); List things = s.createQuery("from Thing").list(); assertEquals(1, things.size()); thing = (Thing)things.get(0); assertEquals("one", thing.getName()); t.commit(); s.close(); // give detached thing a null name and save it thing.setName(null); s = openSession(); t = s.beginTransaction(); s.merge(thing); t.commit(); s.close(); s = openSession(); t = s.beginTransaction(); things = s.createQuery("from Thing").list(); assertEquals(1, things.size()); thing = (Thing)things.get(0); assertNull(thing.getName()); s.delete(thing); t.commit(); s.close();
Session s = openSession(); Transaction t = s.beginTransaction(); // create a new thing with a null name Thing thing = new Thing(); thing.setName(null); s.save(thing); t.commit(); s.close(); s = openSession(); t = s.beginTransaction(); List things = s.createQuery("from Thing").list(); assertEquals(1, things.size()); thing = (Thing)things.get(0); assertNull(thing.getName()); t.commit(); s.close(); // change detached thing name to a non-null value thing.setName("two"); s = openSession(); t = s.beginTransaction(); s.update(thing); t.commit(); s.close(); s = openSession(); t = s.beginTransaction(); things = s.createQuery("from Thing").list(); assertEquals(1, things.size()); thing = ((Thing) things.get(0)); assertEquals("two", thing.getName()); s.delete(thing); t.commit(); s.close();
Clone fragments detected by clone detection tool
File path: /hibernate-distribution-3.3.2.GA/project/testsuite/src/test/java/org/hibernate/test/join/OptionalJoinTest.java File path: /hibernate-distribution-3.3.2.GA/project/testsuite/src/test/java/org/hibernate/test/join/OptionalJoinTest.java
Method name: void testMergeNonNullOptionalJoinToNullDetached() Method name: void testUpdateNullOptionalJoinToNonNullDetached()
Number of AST nodes: 30 Number of AST nodes: 30
1
Session s = openSession();
1
Session s = openSession();
2
		Transaction t = s.beginTransaction();
2
		Transaction t = s.beginTransaction();
3
		// create a new thing with a non-null name
3
		// create a new thing with a null name
4
		Thing thing = new Thing();
4
		Thing thing = new Thing();
5
		thing.setName("one");
5
		thing.setName(null);
6
		s.save(thing);
6
		s.save(thing);
7
		t.commit();
7
		t.commit();
8
		s.close();
8
		s.close();
9
		s = openSession();
9
		s = openSession();
10
		t = s.beginTransaction();
10
		t = s.beginTransaction();
11
		List things = s.createQuery("from Thing").list();
11
		List things = s.createQuery("from Thing").list();
12
		assertEquals(1, things.size());
12
		assertEquals(1, things.size());
13
		thing = (Thing)things.get(0);
13
		thing = (Thing)things.get(0);
14
		assertEquals("one", thing.getName());
14
		assertNull(thing.getName());
15
		t.commit();
15
		t.commit();
16
		s.close();
16
		s.close();
17
		// give detached thing a null name and save it
17
		// change detached thing name to a non-null value
18
		thing.setName(null);
18
		thing.setName("two");
19
		s = openSession();
19
		s = openSession();
20
		t = s.beginTransaction();
20
		t = s.beginTransaction();
21
		s.merge(thing);
21
		s.update(thing);
22
		t.commit();
22
		t.commit();
23
		s.close();
23
		s.close();
24
		s = openSession();
24
		s = openSession();
25
		t = s.beginTransaction();
25
		t = s.beginTransaction();
26
		things = s.createQuery("from Thing").list();
26
		things = s.createQuery("from Thing").list();
27
		assertEquals(1, things.size());
27
		assertEquals(1, things.size());
28
		thing = (Thing)things.get(0);
28
		thing = ((Thing) things.get(0));
29
		assertNull(thing.getName());
29
		assertEquals("two", thing.getName());
30
		s.delete(thing);
30
		s.delete(thing);
31
		t.commit();
31
		t.commit();
32
		s.close();
32
		s.close();
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)0.0
Clones locationClones are declared in the same class
Number of node comparisons187
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements29
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)0.0
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    Session s = openSession();
    1
    Session s = openSession();
    2
    Transaction t = s.beginTransaction();
    2
    Transaction t = s.beginTransaction();
    3
    Thing thing = new Thing();
    3
    Thing thing = new Thing();
    4
    thing.setName("one");
    4
    thing.setName("one");
    4
    thing.setName(null);
    Differences
    Expression1Expression2Difference
    "one"nullTYPE_COMPATIBLE_REPLACEMENT
    4
    thing.setName(null);
    5
    s.save(thing);
    5
    s.save(thing);
    6
    t.commit();
    6
    t.commit();
    7
    s.close();
    7
    s.close();
    8
    s = openSession();
    8
    s = openSession();
    9
    t = s.beginTransaction();
    9
    t = s.beginTransaction();
    10
    List things = s.createQuery("from Thing").list();
    10
    List things = s.createQuery("from Thing").list();
    11
    assertEquals(1, things.size());
    11
    assertEquals(1, things.size());
    12
    thing = (Thing)things.get(0);
    12
    thing = (Thing)things.get(0);
    13
    assertEquals("one", thing.getName());
    13
    assertEquals("one", thing.getName());
    27
    assertEquals("two", thing.getName());
    Differences
    Expression1Expression2Difference
    "one""two"LITERAL_VALUE_MISMATCH
    27
    assertEquals("two", thing.getName());
    14
    t.commit();
    14
    t.commit();
    15
    s.close();
    15
    s.close();
    16
    thing.setName(null);
    16
    thing.setName(null);
    16
    thing.setName("two");
    Differences
    Expression1Expression2Difference
    null"two"TYPE_COMPATIBLE_REPLACEMENT
    16
    thing.setName("two");
    17
    s = openSession();
    17
    s = openSession();
    18
    t = s.beginTransaction();
    18
    t = s.beginTransaction();
                                            
    19
    s.update(thing);
    Preondition Violations
    Unmatched statement s.update(thing); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    19
    s.update(thing);
    19
    s.merge(thing);
    19
    s.merge(thing);
    Preondition Violations
    Unmatched statement s.merge(thing); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                          
    20
    t.commit();
    20
    t.commit();
    21
    s.close();
    21
    s.close();
    22
    s = openSession();
    22
    s = openSession();
    23
    t = s.beginTransaction();
    23
    t = s.beginTransaction();
    24
    things = s.createQuery("from Thing").list();
    24
    things = s.createQuery("from Thing").list();
    25
    assertEquals(1, things.size());
    25
    assertEquals(1, things.size());
    26
    thing = (Thing)things.get(0);
    26
    thing = (Thing)things.get(0);
    26
    thing = ((Thing)things.get(0));
    Differences
    Expression1Expression2Difference
    (Thing)things.get(0)((Thing)things.get(0))TYPE_COMPATIBLE_REPLACEMENT
    Preondition Violations
    Expression (Thing)things.get(0) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression ((Thing)things.get(0)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    26
    thing = ((Thing)things.get(0));
    27
    assertNull(thing.getName());
    13
    assertNull(thing.getName());
    28
    s.delete(thing);
    28
    s.delete(thing);
    29
    t.commit();
    29
    t.commit();
    30
    s.close();
    30
    s.close();
    Precondition Violations (5)
    Row Violation
    1Unmatched statement s.update(thing); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    2Unmatched statement s.merge(thing); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    3Expression (Thing)things.get(0) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression ((Thing)things.get(0)) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Clone fragment #1 returns variables thing, s , while Clone fragment #2 returns variables thing, s