if (lis != null) { listenerList.remove(ISessionListener.class, lis); } else { s_log.error("Attempted to remove null listener: SessionManager.addSessionListener"); }
if (lis != null) { listenerList.add(ISessionListener.class, lis); } else { s_log.error("Attempted to add null listener: SessionManager.addSessionListener"); }
Clone fragments detected by clone detection tool
File path: /sql12/app/src/net/sourceforge/squirrel_sql/client/session/SessionManager.java File path: /sql12/app/src/net/sourceforge/squirrel_sql/client/session/SessionManager.java
Method name: void removeSessionListener(ISessionListener) Method name: void addSessionListener(ISessionListener)
Number of AST nodes: 3 Number of AST nodes: 3
1
if (lis != null)
1
if (lis != null)
2
      {
2
      {
3
         listenerList.remove(ISessionListener.class, lis);
3
         listenerList.add(ISessionListener.class, lis);
4
      }
4
      }
5
      else
5
      else
6
      {
6
      {
7
         s_log.error("Attempted to remove null listener: SessionManager.addSessionListener");
7
         s_log.error("Attempted to add null listener: SessionManager.addSessionListener");
8
      }
8
      }
Summary
Number of common nesting structure subtrees1
Number of refactorable cases1
Number of non-refactorable cases0
Time elapsed for finding largest common nesting structure subtrees (ms)0.1
Clones locationClones are declared in the same class
Number of node comparisons9
  1. {Refactorable}
    Mapping Summary
    Number of mapped statements3
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)1.4
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (lis != null)
    1
    if (lis != null)
    2
    listenerList.remove(ISessionListener.class, lis);
    2
    listenerList.remove(ISessionListener.class, lis);
    2
    listenerList.add(ISessionListener.class, lis);
    Differences
    Expression1Expression2Difference
    removeaddMETHOD_INVOCATION_NAME_MISMATCH
    Preondition Violations
    Expression listenerList.remove(ISessionListener.class,lis) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression listenerList.add(ISessionListener.class,lis) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression listenerList.remove(ISessionListener.class,lis) is a void method call, and thus it cannot be parameterized
    Expression listenerList.add(ISessionListener.class,lis) is a void method call, and thus it cannot be parameterized
    2
    listenerList.add(ISessionListener.class, lis);
    else
    else
    3
    s_log.error("Attempted to remove null listener: SessionManager.addSessionListener");
    3
    s_log.error("Attempted to remove null listener: SessionManager.addSessionListener");
    3
    s_log.error("Attempted to add null listener: SessionManager.addSessionListener");
    Differences
    Expression1Expression2Difference
    "Attempted to remove null listener: SessionManager.addSessionListener""Attempted to add null listener: SessionManager.addSessionListener"LITERAL_VALUE_MISMATCH
    3
    s_log.error("Attempted to add null listener: SessionManager.addSessionListener");
    Precondition Violations (4)
    Row Violation
    1Expression listenerList.remove(ISessionListener.class,lis) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    2Expression listenerList.add(ISessionListener.class,lis) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Expression listenerList.remove(ISessionListener.class,lis) is a void method call, and thus it cannot be parameterized
    4Expression listenerList.add(ISessionListener.class,lis) is a void method call, and thus it cannot be parameterized