try { return SAXParserFactory.newInstance(); } catch (FactoryConfigurationError e) { throw new BuildException("XML parser factory has not been " + "configured correctly: " + e.getMessage(), e); }
try { return super.clone(); } catch (CloneNotSupportedException e) { throw new UnsupportedOperationException( "CloneNotSupportedException for a Resource caught. " + "Derived classes must support cloning."); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/JAXPUtils.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/Resource.java
Method name: SAXParserFactory newParserFactory() Method name: Object clone()
Number of AST nodes: 2 Number of AST nodes: 2
1
try {
1
try {
2
            return SAXParserFactory.newInstance();
2
            return 
3
        } catch (FactoryConfigurationError e) {
4
            throw new BuildException("XML parser factory has not been "
5
                                     + "configured correctly:
3
super.clone();
4
        } catch (CloneNotSupportedException e) {
5
            throw new UnsupportedOperationException(
6
 "
6
                    "CloneNotSupportedException for a Resource caught. "
7
                                     + e.getMessage(), e);
7
                    + "Derived classes must support cloning.");
8
        }
8
        }
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)0.2
Clones locationClones are in different classes
Number of node comparisons4
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)0.5
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    try
    1
    try
    1
    try
    Differences
    Expression1Expression2Difference
    javax.xml.parsers.FactoryConfigurationErrorjava.lang.CloneNotSupportedExceptionSUBCLASS_TYPE_MISMATCH
    javax.xml.parsers.FactoryConfigurationErrorjava.lang.CloneNotSupportedExceptionSUBCLASS_TYPE_MISMATCH
    org.apache.tools.ant.BuildExceptionjava.lang.UnsupportedOperationExceptionSUBCLASS_TYPE_MISMATCH
    new BuildException("XML parser factory has not been " + "configured correctly: " + e.getMessage(),e)new UnsupportedOperationException("CloneNotSupportedException for a Resource caught. " + "Derived classes must support cloning.")ARGUMENT_NUMBER_MISMATCH
    1
    try
                                                    
    2
    return super.clone();
    Preondition Violations
    Unmatched statement return super.clone(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    Unmatched return super.clone();
    2
    return super.clone();
    2
    return SAXParserFactory.newInstance();
    2
    return SAXParserFactory.newInstance();
    Preondition Violations
    Unmatched return SAXParserFactory.newInstance();
                                                                                      
    Precondition Violations (3)
    Row Violation
    1Unmatched statement return super.clone(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    2Unmatched return super.clone();
    3Unmatched return SAXParserFactory.newInstance();