if (null != specificationVersion) { sb.append(SPECIFICATION_VERSION); sb.append(brace); sb.append(specificationVersion); sb.append(StringUtils.LINE_SEP); }
if (unlessCond != null) { buf.append(connector); buf.append("unless->"); buf.append(unlessCond); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/Extension.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/PatternSet.java
Method name: String toString() Method name: String toString()
Number of AST nodes: 5 Number of AST nodes: 4
1
if (null != specificationVersion) {
1
if (
2
            sb.append(SPECIFICATION_VERSION);
2
unlessCond != null) {
3
            sb.append(brace);
3
                    buf.append(connector);
4
            sb.append(specificationVersion);
4
                    buf.append("unless->");
5
            sb.append(StringUtils.LINE_SEP);
5
            
6
        buf.append(unlessCond);
6
        }
7
                }
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 in different classes
Number of node comparisons20
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements4
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)1.9
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    6
    if (null != specificationVersion)
    6
    if (null != specificationVersion)
    12
    if (unlessCond != null)
    Differences
    Expression1Expression2Difference
    nullunlessCondTYPE_COMPATIBLE_REPLACEMENT
    specificationVersionnullTYPE_COMPATIBLE_REPLACEMENT
    12
    if (unlessCond != null)
    7
    sb.append(SPECIFICATION_VERSION);
    7
    sb.append(SPECIFICATION_VERSION);
    13
    buf.append(connector);
    Differences
    Expression1Expression2Difference
    SPECIFICATION_VERSIONconnectorVARIABLE_NAME_MISMATCH
    java.util.jar.Attributes.Namejava.lang.StringVARIABLE_TYPE_MISMATCH
    sbbufVARIABLE_NAME_MISMATCH
    Preondition Violations
    Type java.util.jar.Attributes.Name of variable SPECIFICATION_VERSION does not match with type java.lang.String of variable connector
    • Make classes java.util.jar.Attributes.Name and java.lang.String extend a common superclass
    13
    buf.append(connector);
    8
    sb.append(brace);
    8
    sb.append(brace);
    14
    buf.append("unless->");
    Differences
    Expression1Expression2Difference
    brace"unless->"TYPE_COMPATIBLE_REPLACEMENT
    sbbufVARIABLE_NAME_MISMATCH
    14
    buf.append("unless->");
    9
    sb.append(specificationVersion);
    9
    sb.append(specificationVersion);
    15
    buf.append(unlessCond);
    Differences
    Expression1Expression2Difference
    specificationVersionunlessCondVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimaljava.lang.StringVARIABLE_TYPE_MISMATCH
    sbbufVARIABLE_NAME_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable unlessCond
    • Make classes org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal and java.lang.String extend a common superclass
    15
    buf.append(unlessCond);
    10
    sb.append(StringUtils.LINE_SEP);
    10
    sb.append(StringUtils.LINE_SEP);
    Preondition Violations
    Unmatched statement sb.append(StringUtils.LINE_SEP); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                            
    Precondition Violations (3)
    Row Violation
    1Type java.util.jar.Attributes.Name of variable SPECIFICATION_VERSION does not match with type java.lang.String of variable connector
    2Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable unlessCond
    3Unmatched statement sb.append(StringUtils.LINE_SEP); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted