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A Database of Real Faults and an Experimental Infrastructure to Enable Controlled Experiments in Software Engineering Research

Results 99 defects4j issues
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Hello, I am wondering if it is possible to run a test case and collect log messages that reflect the system behavior. For example, for the Chart (jfreechart) project, can...

help wanted
infrastructure

Hello The recent addition of -m flag in mutation analysis routine gives the option of selection of specific operator group for mutation analysis. I was wondering is there any way...

enhancement
help wanted
external tools

Apart from build failure, I am getting this warning [javac] warning: /opt/java/jdk1.8.0_181/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Object.class): major version 52 is newer than 51, the highest major version supported by this compiler. [javac] It is...

bug
external tools

Hi, I noticed that for (at least one) Mockito's bug `defects4j export` deletes the test classes directory. For example, suppose that I checkout Mockito-25b and then I compile it: ```...

bug

Hi @rjust When I use the following command to do the mutation test for Closure_23 fixed version root@freg-virtual-machine:/tmp# cd Closure_23_fix/ root@freg-virtual-machine:/tmp/Closure_23_fix# defects4j compile Running ant (compile)...................................................... OK Running ant (compile.tests)...................................................

help wanted
external tools

Currently, Defects4J's version ids have the following format: `(f|b)`, where b refers to the minimized buggy and f to the fixed version. We should change the version id format to:...

enhancement
infrastructure

From the conversation I had with René (via email), "the naming of the directory (patches) in the framework is ambiguous and probably confusing". Here there are some details from René:...

enhancement
tutorial

JxPath and Cli use non-standard target names like "compile-test" instead of "compile.test". I chose to do a string substitution on check-out to change the non-standard names to those expected (done...

enhancement
tutorial

The test script `test_export_command`currently checks whether the source and test directories are properly exported. It should also check whether the classpaths and lists of tests are properly exported.

enhancement
infrastructure

Hi René, I've been running a sanity check on all test methods using `$D4J_HOME/framework/lib/formatter.jar` and `$D4J_HOME/framework/bin/defects4j test -t ...`, and there are two test methods to which the outcome of...

bug
enhancement