Detecting and Preventing Code Clones Mercilessly - workshop guide

Please follow these steps:

First: Open the code project

We will be working on the example project provided by ConQAT:

1. Open Eclipse
2. Goto: New Project > Examples > ConQAT Examples > ConQAT Examples Project

Second: Run the code clones analysis tools

1. Double click the clonedetection-example-junit.cqr 
2. Click Launch ConQAT analysis
3. After it finishes, goto Menu: Clone Detection > Open Clone Report, and select the clones.xml file in the output directory

Third: Detecting exact code clones

1. Back to the clonedetection-example-junit.cqr page
2. Scroll all the way to the right and click the 'New' button
3. Add the field 'equality', and enter value 1 in the threshold
4. Launch the analysis and reload the clones.xml file

Forth: Detecting similar code clones

1. Back to the clonedetection-example-junit.cqr page
2. Scroll all the way to the right and click the 'New' button
3. Add the field 'similarity', and enter value 1 in the threshold
4. Remove the 'equality' parameter
5. Launch the analysis and reload the clones.xml file

Fifth: Detecting gapped clones

1. Goto the 'ConQat blocks' section at the top right of the configuration file
2. Click on 'Change' button
3. Select 'Code Clones > JavaGappedClonesAnalysis'
4. Add a parameter called 'errors' and enter the value = 2
5. Add a parameter called 'gap' and enter the ratio = 0.2 
6. Launch the analysis and reload the clones-gapped.xml file (notice the file name is different than the previous ones)