if (threadGroup == null) { return getRuntime().getNil(); } return threadGroup;
if (threadLocalVariables == null) { threadLocalVariables = new HashMap<IRubyObject, IRubyObject>(); } return threadLocalVariables;
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/RubyThread.java File path: /jruby-1.4.0/src/org/jruby/RubyThread.java
Method name: IRubyObject group() Method name: Map getThreadLocals()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (threadGroup == null) {
1
if (threadLocalVariables == null) {
2
        	return getRuntime().getNil();
2
            threadLocalVariables = new HashMap<IRubyObject, IRubyObject>();
3
        }
3
        }
4
        
5
        return threadGroup;
4
        return threadLocalVariables;
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)0.1
Clones locationClones are declared in the same class
Number of node comparisons5
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.4
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (threadGroup == null)
    1
    if (threadGroup == null)
    1
    if (threadLocalVariables == null)
    Differences
    Expression1Expression2Difference
    threadGroupthreadLocalVariablesVARIABLE_NAME_MISMATCH
    org.jruby.RubyThreadGroupjava.util.MapVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jruby.RubyThreadGroup of variable threadGroup does not match with type java.util.Map<org.jruby.runtime.builtin.IRubyObject,org.jruby.runtime.builtin.IRubyObject> of variable threadLocalVariables
    • Make classes org.jruby.RubyThreadGroup and java.util.Map extend a common superclass
    1
    if (threadLocalVariables == null)
                                                                                                                                  
    2
    threadLocalVariables = new HashMap<IRubyObject, IRubyObject>();
    2
    return getRuntime().getNil();
    2
    return getRuntime().getNil();
    Preondition Violations
    Unmatched return getRuntime().getNil();
                                                                    
                                                                  
    3
    return threadLocalVariables;
    Preondition Violations
    Unmatched return threadLocalVariables;
    3
    return threadLocalVariables;
    3
    return threadGroup;
    3
    return threadGroup;
    Preondition Violations
    Unmatched return threadGroup;
                                                
    Precondition Violations (4)
    Row Violation
    1Type org.jruby.RubyThreadGroup of variable threadGroup does not match with type java.util.Map<org.jruby.runtime.builtin.IRubyObject,org.jruby.runtime.builtin.IRubyObject> of variable threadLocalVariables
    2Unmatched return getRuntime().getNil();
    3Unmatched return threadLocalVariables;
    4Unmatched return threadGroup;