if (buffer != null) { buffer.clear(); }
if (err != null) { createProcessErrorPump(is, err); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/VerifyJar.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/PumpStreamHandler.java
Method name: void clear() Method name: void setProcessErrorStream(InputStream)
Number of AST nodes: 2 Number of AST nodes: 2
1
if (buffer != null) {
1
if (err != null) {
2
                buffer.clear();
2
            
3
    
3
createProcessErrorPump(is, err);
4
        }
4
        }
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 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)0.5
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (buffer != null)
    1
    if (buffer != null)
    1
    if (err != null)
    Differences
    Expression1Expression2Difference
    buffererrVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.taskdefs.VerifyJar.BufferingOutputFilterReaderjava.io.OutputStreamVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.VerifyJar.BufferingOutputFilterReader of variable buffer does not match with type java.io.OutputStream of variable err
    • Make classes org.apache.tools.ant.taskdefs.VerifyJar.BufferingOutputFilterReader and java.io.OutputStream extend a common superclass
    1
    if (err != null)
    2
    buffer.clear();
    2
    buffer.clear();
    2
    createProcessErrorPump(is, err);
    Differences
    Expression1Expression2Difference
    clearcreateProcessErrorPumpMETHOD_INVOCATION_NAME_MISMATCH
    buffer.clear()createProcessErrorPump(is,err)ARGUMENT_NUMBER_MISMATCH
    bufferMISSING_METHOD_INVOCATION_EXPRESSION
    Preondition Violations
    Expression buffer.clear() is a void method call, and thus it cannot be parameterized
    Expression createProcessErrorPump(is,err) is a void method call, and thus it cannot be parameterized
    Expression buffer.clear() is a void method call, and thus it cannot be parameterized
    Expression createProcessErrorPump(is,err) is a void method call, and thus it cannot be parameterized
    2
    createProcessErrorPump(is, err);
    Precondition Violations (5)
    Row Violation
    1Type org.apache.tools.ant.taskdefs.VerifyJar.BufferingOutputFilterReader of variable buffer does not match with type java.io.OutputStream of variable err
    2Expression buffer.clear() is a void method call, and thus it cannot be parameterized
    3Expression createProcessErrorPump(is,err) is a void method call, and thus it cannot be parameterized
    4Expression buffer.clear() is a void method call, and thus it cannot be parameterized
    5Expression createProcessErrorPump(is,err) is a void method call, and thus it cannot be parameterized