try { reg.setPattern(from); } catch (NoClassDefFoundError e) { // depending on the implementation the actual RE won't // get instantiated in the constructor. throw new BuildException("Cannot load regular expression matcher", e); }
try { super.processBuffer(); } catch (IOException e) { // impossible since *our* processLine doesn't throw an IOException throw new RuntimeException("Impossible IOException caught: " + e); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/RegexpPatternMapper.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/LogOutputStream.java
Method name: void setFrom(String) Method name: void processBuffer()
Number of AST nodes: 2 Number of AST nodes: 2
1
try {
1
try {
2
            reg.setPattern(from);
2
            
3
        } catch (NoClassDefFoundError e) {
4
            // depending on the implementation the actual RE won't
5
            // get instantiated in the constructor.
3
super.processBuffer();
4
        } catch (IOException e) {
5
            // impossible since *our* processLine doesn't throw an IOException
6
            throw new BuildException("Cannot load regular expression matcher",
6
            throw new RuntimeException("
7
                                     e);
7
Impossible IOException caught: " + e);
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 statements2
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)10.6
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    try
    1
    try
    1
    try
    Differences
    Expression1Expression2Difference
    java.lang.NoClassDefFoundErrorjava.io.IOExceptionSUBCLASS_TYPE_MISMATCH
    java.lang.NoClassDefFoundErrorjava.io.IOExceptionSUBCLASS_TYPE_MISMATCH
    org.apache.tools.ant.BuildExceptionjava.lang.RuntimeExceptionSUBCLASS_TYPE_MISMATCH
    new BuildException("Cannot load regular expression matcher",e)new RuntimeException("Impossible IOException caught: " + e)ARGUMENT_NUMBER_MISMATCH
    1
    try
    2
    reg.setPattern(from);
    2
    reg.setPattern(from);
    2
    super.processBuffer();
    Differences
    Expression1Expression2Difference
    reg.setPattern(from)super.processBuffer()TYPE_COMPATIBLE_REPLACEMENT
    Preondition Violations
    Expression reg.setPattern(from) is a method call throwing exception(s) that should be caught by a try block that will be extracted
    Expression super.processBuffer() is a method call throwing exception(s) that should be caught by a try block that will be extracted
    Expression reg.setPattern(from) is a void method call, and thus it cannot be parameterized
    Expression super.processBuffer() is a void method call, and thus it cannot be parameterized
    2
    super.processBuffer();
    Precondition Violations (4)
    Row Violation
    1Expression reg.setPattern(from) is a method call throwing exception(s) that should be caught by a try block that will be extracted
    2Expression super.processBuffer() is a method call throwing exception(s) that should be caught by a try block that will be extracted
    3Expression reg.setPattern(from) is a void method call, and thus it cannot be parameterized
    4Expression super.processBuffer() is a void method call, and thus it cannot be parameterized