JetBrains / intellij-samples Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 560 units with 2,821 lines of code in units (59.5% of code).

0 very complex units (0 lines of code)
0 complex units (0 lines of code)
1 medium complex units (13 lines of code)
7 simple units (109 lines of code)
552 very simple units (2,699 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
public boolean equals() in java-samples/src/main/java/com/jetbrains/formatting/RearrangeCode.java	13	11	1
private void removeUnreachableSwitchBranches() in java-samples/src/main/java/com/jetbrains/analysis/DataFlowAnalysis.java	31	9	1
static void shouldSuggestMigratingMoreComplexExampleToPatternMatchingForSwitch() in java-samples/src/main/java/com/jetbrains/code/jdk21/PatternMatchingForSwitch.java	11	7	1
static void testStringNew() in java-samples/src/main/java/com/jetbrains/code/jdk21/PatternMatchingForSwitch.java	14	7	1
public String exampleDataFlowAnalysis() in java-samples/src/main/java/com/jetbrains/analysis/DataFlowAnalysis.java	15	7	1
public void canExtractCommonConditionsFromIfStatements() in java-samples/src/main/java/com/jetbrains/inspections/Inspections.java	9	7	1
public boolean equals() in java-samples/src/main/java/com/jetbrains/code/jdk16/PersonDTO.java	8	6	1
private List getListOfAllNonEmptyStringValues() in java-samples/src/main/java/com/jetbrains/inspections/Java8Inspections.java	21	6	1
static String exampleJEP411OriginalCode() in java-samples/src/main/java/com/jetbrains/code/jdk21/PatternMatchingForSwitch.java	13	5	1
static String formatterPatternSwitch() in java-samples/src/main/java/com/jetbrains/code/jdk21/PatternMatchingForSwitch.java	9	5	1
public void showDataFlowWithNumericExample() in java-samples/src/main/java/com/jetbrains/analysis/DataFlowAnalysis.java	12	5	1
private static boolean isVowel() in java-samples/src/main/java/com/jetbrains/testing/Alphabet.java	11	5	1
public void testAnnotationInference() in java-samples/src/main/java/com/jetbrains/inspections/NullityInference.java	18	5	1
private PortType replaceSimpleSwitch() in java-samples/src/main/java/com/jetbrains/inspections/SwitchExpressions.java	18	5	1
private int replaceWithCountNested() in java-samples/src/main/java/com/jetbrains/inspections/Java8Inspections.java	13	5	0
private int replaceWithMapToInt() in java-samples/src/main/java/com/jetbrains/inspections/Java8Inspections.java	13	5	0
public void inspectionToConvertInstanceof() in java-samples/src/main/java/com/jetbrains/inspections/PatternMatchingForInstanceOf.java	16	5	1
public List combinesWithOtherSimplificationInspections() in java-samples/src/main/java/com/jetbrains/inspections/PatternMatchingForInstanceOf.java	15	5	0
public void examplesOfUpdatesToPatternMatchingInJava16() in java-samples/src/main/java/com/jetbrains/inspections/PatternMatchingForInstanceOf.java	13	5	1
private Nucleotide getBasePair() in java-samples/src/main/java/com/jetbrains/generation/GenerateSwitchBranches.java	11	4	1
int getDamage() in java-samples/src/main/java/com/jetbrains/code/jdk17/MyEarth.java	16	4	1
static void shouldSuggestMigratingToPatternMatchingForSwitch() in java-samples/src/main/java/com/jetbrains/code/jdk21/PatternMatchingForSwitch.java	12	4	1
private void asIfStatements() in java-samples/src/main/java/com/jetbrains/code/jdk23/PrimitiveTypesInSwitch.java	11	4	1
private void asSwitch() in java-samples/src/main/java/com/jetbrains/code/jdk23/PrimitiveTypesInSwitch.java	8	4	1
public void replaceNotAndWithOr() in java-samples/src/main/java/com/jetbrains/intentions/BooleanIntentions.java	7	4	3
public boolean validateMonth() in java-samples/src/main/java/com/jetbrains/analysis/DataFlowAnalysisForArrays.java	14	4	1
public void newWarningsForIsInstance() in java-samples/src/main/java/com/jetbrains/analysis/DataFlowAnalysis.java	6	4	2
private void improvedAnalysisOfMathematicalOperations() in java-samples/src/main/java/com/jetbrains/analysis/DataFlowAnalysis.java	11	4	1
private void printPlanetFacts() in java-samples/src/main/java/com/jetbrains/refactoring/PlanetExtractions.java	12	4	0
private static T getNthFromLast() in java-samples/src/main/java/com/jetbrains/debugging/InlineDebugging.java	10	4	2
private PortType switchExpressionCanReturnWithYield() in java-samples/src/main/java/com/jetbrains/inspections/Java13Inspections.java	9	4	1
private String createMissingSwitchBranch() in java-samples/src/main/java/com/jetbrains/inspections/SwitchExpressions.java	8	4	1
private List replaceWithCollect() in java-samples/src/main/java/com/jetbrains/inspections/Java8Inspections.java	11	4	0
private List replaceWithCollectAndMap() in java-samples/src/main/java/com/jetbrains/inspections/Java8Inspections.java	11	4	0
private boolean hasEmptyString() in java-samples/src/main/java/com/jetbrains/inspections/Java8Inspections.java	10	4	1
public String toCountedLoopInFindFirst() in java-samples/src/main/java/com/jetbrains/inspections/Java8Inspections.java	11	4	2
public MappedField smarterStreamInspections() in java-samples/src/main/java/com/jetbrains/inspections/Java8Inspections.java	10	4	2
public boolean equals() in java-samples/src/main/java/com/jetbrains/inspections/PatternMatchingForInstanceOf.java	9	4	1
void varCanSimplifyGenericTypes() in java-samples/src/main/java/com/jetbrains/inspections/VarLVTI.java	11	4	2
public float getaFloatFactor() in java-samples/src/main/java/com/jetbrains/versioning/MergeChanges.java	8	3	0
public void setAnInt() in java-samples/src/main/java/com/jetbrains/versioning/MergeChanges.java	8	3	1
private String weLoveSwitchExpressions() in java-samples/src/main/java/com/jetbrains/code/JavaAt25.java	7	3	1
static void testFooBar() in java-samples/src/main/java/com/jetbrains/code/jdk21/PatternMatchingForSwitch.java	7	3	1
void joinIfStatement() in java-samples/src/main/java/com/jetbrains/editing/JoinLinesOfCode.java	5	3	2
public boolean isAcademic() in java-samples/src/main/java/com/jetbrains/intentions/BooleanIntentions.java	6	3	1
public void splitMergeCollapse() in java-samples/src/main/java/com/jetbrains/intentions/ExceptionIntentions.java	13	3	2
private void unrollList() in java-samples/src/main/java/com/jetbrains/intentions/LoopingIntentions.java	7	3	1
public int methodWithMultipleReturnPoints() in java-samples/src/main/java/com/jetbrains/intentions/TransformToSingleExitPoint.java	9	3	1
public int mergeNestedIfs() in java-samples/src/main/java/com/jetbrains/intentions/ControlFlowIntentions.java	8	3	3
public int mergeParallelIfs() in java-samples/src/main/java/com/jetbrains/intentions/ControlFlowIntentions.java	12	3	2