end--; // closer to end try { if (index != -1) { br.reset(); } int i = br.read(); br.mark(bufsize); if (i == -1) { end = 1; cached = OUT_OF_BOUNDS; return false; } cached = (char) i; index = 1; } catch (IOException e) { e.printStackTrace(); cached = OUT_OF_BOUNDS; return false; } return true;
end--; // closer to end try { if (index != -1) { br.reset(); } int i = br.read(); br.mark(bufsize); if (i == -1) { end = 1; cached = OUT_OF_BOUNDS; return false; } // convert the byte read into a char cached = (char) i; index = 1; } catch (IOException e) { e.printStackTrace(); cached = OUT_OF_BOUNDS; return false; } return true;
Clone fragments detected by clone detection tool
File path: /jEdit-4.2/src/gnu/regexp/CharIndexedInputStream.java File path: /jEdit-4.2/src/gnu/regexp/CharIndexedReader.java
Method name: boolean next() Method name: boolean next()
Number of AST nodes: 13 Number of AST nodes: 13
1
end--; // closer to end
1
end--; // closer to end
2
	
2
	try {
3
	try {
3
	    if (index != -1) {
4
	    if (index != -1) {
4
		br.reset();
5
		br.reset();
5
	    }
6
	    }
6
	    int i = br.read();
7
	    int i = br.read();
7
	    br.mark(bufsize);
8
	    br.mark(bufsize);
8
	    if (i == -1) {
9
	    if (i == -1) {
9
		end = 1;
10
		end = 1;
10
		cached = OUT_OF_BOUNDS;
11
		cached = OUT_OF_BOUNDS;
11
		return false;
12
		return false;
12
	    }
13
	    }
14
	    // convert the byte read into a char
13
	    cached = (char) i;
15
	    cached = (char) i;
14
	    index = 1;
16
	    index = 1;
15
	} catch (IOException e) { 
17
	} catch (IOException e) { 
16
	    e.printStackTrace();
18
	    e.printStackTrace();
17
	    cached = OUT_OF_BOUNDS;
19
	    cached = OUT_OF_BOUNDS;
18
	    return false; 
20
	    return false; 
19
	}
21
	}
20
	return true;
22
	return true;
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)0.5
Clones locationClones are in different classes
Number of node comparisons56
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements13
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)1.8
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    3
    end--;
    6
    end--;
    4
    try
    7
    try
    5
    if (index != -1)
    8
    if (index != -1)
    6
    br.reset();
    6
    br.reset();
    9
    br.reset();
    Differences
    Expression1Expression2Difference
    java.io.BufferedInputStreamjava.io.BufferedReaderVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.io.BufferedInputStream of variable br does not match with type java.io.BufferedReader of variable br
    • Make classes java.io.BufferedInputStream and java.io.BufferedReader extend a common superclass
    9
    br.reset();
    7
    int i = br.read();
    7
    int i = br.read();
    10
    int i = br.read();
    Differences
    Expression1Expression2Difference
    java.io.BufferedInputStreamjava.io.BufferedReaderVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.io.BufferedInputStream of variable br does not match with type java.io.BufferedReader of variable br
    • Make classes java.io.BufferedInputStream and java.io.BufferedReader extend a common superclass
    10
    int i = br.read();
    8
    br.mark(bufsize);
    8
    br.mark(bufsize);
    11
    br.mark(bufsize);
    Differences
    Expression1Expression2Difference
    java.io.BufferedInputStreamjava.io.BufferedReaderVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.io.BufferedInputStream of variable br does not match with type java.io.BufferedReader of variable br
    • Make classes java.io.BufferedInputStream and java.io.BufferedReader extend a common superclass
    11
    br.mark(bufsize);
    9
    if (i == -1)
    12
    if (i == -1)
    10
    end = 1;
    13
    end = 1;
    11
    cached = OUT_OF_BOUNDS;
    14
    cached = OUT_OF_BOUNDS;
    12
    return false;
    12
    return false;
    15
    return false;
    Preondition Violations
    Conditional return false;
    Conditional return false;
    15
    return false;
    13
    cached = (char)i;
    16
    cached = (char)i;
    14
    index = 1;
    17
    index = 1;
    15
    return true;
    18
    return true;
    Precondition Violations (5)
    Row Violation
    1Type java.io.BufferedInputStream of variable br does not match with type java.io.BufferedReader of variable br
    2Type java.io.BufferedInputStream of variable br does not match with type java.io.BufferedReader of variable br
    3Type java.io.BufferedInputStream of variable br does not match with type java.io.BufferedReader of variable br
    4Conditional return false;
    5Conditional return false;