apache / freemarker - 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 4,843 units with 43,474 lines of code in units (72.6% of code).

13 very complex units (2,317 lines of code)
31 complex units (2,881 lines of code)
173 medium complex units (7,966 lines of code)
270 simple units (6,542 lines of code)
4,356 very simple units (23,768 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
static int getArgumentConversionPrice() in freemarker-core/src/main/java/freemarker/ext/beans/OverloadedNumberUtil.java	255	242	2
public static boolean isFTLIdentifierStart() in freemarker-core/src/main/java/freemarker/template/utility/StringUtil.java	263	191	1
public static boolean isFTLIdentifierStart() in freemarker-core/src/main/misc/identifierChars/src/main/freemarker/adhoc/IdentifierCharGenerator.java	264	191	1
public void setSetting() in freemarker-core/src/main/java/freemarker/core/Configurable.java	241	113	2
private Object tryUnwrapTo() in freemarker-core/src/main/java/freemarker/ext/beans/BeansWrapper.java	169	92	4
public void setSetting() in freemarker-core/src/main/java/freemarker/template/Configuration.java	202	91	2
static Number addFallbackType() in freemarker-core/src/main/java/freemarker/ext/beans/OverloadedNumberUtil.java	178	86	2
static int compareNumberTypeSpecificity() in freemarker-core/src/main/java/freemarker/ext/beans/OverloadedNumberUtil.java	86	66	2
int compareParameterListPreferability() in freemarker-core/src/main/java/freemarker/ext/beans/ArgumentTypes.java	201	61	3
public void apply() in freemarker-core/src/main/java/freemarker/core/TemplateConfiguration.java	100	58	1
private void setMacroContextLocalsFromArguments() in freemarker-core/src/main/java/freemarker/core/Environment.java	172	57	4
private int isMethodInvocationConvertible() in freemarker-core/src/main/java/freemarker/ext/beans/ArgumentTypes.java	75	53	2
public static String jsStringEnc() in freemarker-core/src/main/java/freemarker/template/utility/StringUtil.java	111	52	3
static boolean compare() in freemarker-core/src/main/java/freemarker/core/EvalUtil.java	146	50	12
private void initialize() in freemarker-javax-servlet/src/main/java/freemarker/ext/servlet/FreemarkerServlet.java	136	46	0
TemplateModel _eval() in freemarker-core/src/main/java/freemarker/core/BuiltinVariable.java	93	44	1
public void merge() in freemarker-core/src/main/java/freemarker/core/TemplateConfiguration.java	120	40	1
private StringBuilder unifiedTruncateWithoutTerminatorAdded() in freemarker-core/src/main/java/freemarker/core/DefaultTruncateBuiltinAlgorithm.java	90	39	6
private TemplateNumberModel tryConsumeNumber() in freemarker-core/src/main/java/freemarker/core/JSONParser.java	85	36	0
public String toString() in freemarker-core/src/main/java/freemarker/core/_ErrorDescriptionBuilder.java	84	36	2
private TemplateModel dealWithRangeKey() in freemarker-core/src/main/java/freemarker/core/DynamicKeyName.java	127	35	3
private static String dateToString() in freemarker-core/src/main/java/freemarker/template/utility/DateUtil.java	119	34	8
private void process() in freemarker-javax-servlet/src/main/java/freemarker/ext/servlet/FreemarkerServlet.java	112	33	2
public int compareNumbers() in freemarker-core/src/main/java/freemarker/core/ArithmeticEngine.java	78	33	2
void checkParamsSetAndApplyDefaults() in freemarker-core/src/main/java/freemarker/core/Macro.java	136	33	1
private String getOrRenderDescription() in freemarker-core/src/main/java/freemarker/core/ParseException.java	110	32	0
public TemplateModel get() in freemarker-core/src/main/java/freemarker/template/utility/DOMNodeModel.java	66	31	1
abstract MaybeEmptyMemberAndArguments getMemberAndArguments() in freemarker-core/src/main/java/freemarker/ext/beans/OverloadedMethodsSubset.java	84	31	2
static Number forceUnwrappedNumberToType() in freemarker-core/src/main/java/freemarker/ext/beans/BeansWrapper.java	49	31	3
private Object fetchNumberLike() in freemarker-core/src/main/java/freemarker/core/_ObjectBuilderSettingEvaluator.java	99	30	2
private boolean hasAnyConfigurableSet() in freemarker-core/src/main/java/freemarker/core/TemplateConfiguration.java	32	29	0
public ISOLikeTemplateDateFormat() in freemarker-core/src/main/java/freemarker/core/ISOLikeTemplateDateFormat.java	114	29	7
static int classToTypeFlags() in freemarker-core/src/main/java/freemarker/ext/beans/TypeFlags.java	53	29	1
static int findTemplatePathSettingAssignmentsStart() in freemarker-javax-servlet/src/main/java/freemarker/ext/servlet/InitParamParser.java	57	28	1
public static Map parseNameValuePairList() in freemarker-core/src/main/java/freemarker/template/utility/StringUtil.java	126	28	2
static TemplateSequenceModel sort() in freemarker-core/src/main/java/freemarker/core/BuiltInsForSequences.java	123	28	2
public void endElement() in freemarker-javax-servlet/src/main/java/freemarker/ext/jsp/TaglibFactory.java	113	27	3
public static String FTLStringLiteralDec() in freemarker-core/src/main/java/freemarker/template/utility/StringUtil.java	101	27	1
private static String XMLOrHTMLEnc() in freemarker-core/src/main/java/freemarker/template/utility/StringUtil.java	86	26	4
public TemplateModel get() in freemarker-core/src/main/java/freemarker/ext/dom/ElementModel.java	66	26	1
public TemplateModel get() in freemarker-core/src/main/java/freemarker/ext/jdom/NodeListModel.java	87	26	1
private DefaultMemberAccessPolicy() in freemarker-core/src/main/java/freemarker/ext/beans/DefaultMemberAccessPolicy.java	87	26	0
private void addBeanInfoToClassIntrospectionData() in freemarker-core/src/main/java/freemarker/ext/beans/ClassIntrospector.java	88	26	4
private static boolean isXML11NameStartChar() in freemarker-core/src/main/misc/identifierChars/src/main/freemarker/adhoc/IdentifierCharGenerator.java	14	26	1
public TemplateModel wrap() in freemarker-core/src/main/java/freemarker/template/DefaultObjectWrapper.java	67	25	1
private static boolean isGMTish() in freemarker-core/src/main/java/freemarker/template/utility/DateUtil.java	40	25	1
static Transform transformFromArgs() in freemarker-core/src/main/java/freemarker/ext/dom/Transform.java	73	25	1
private List getPropertyDescriptors() in freemarker-core/src/main/java/freemarker/ext/beans/ClassIntrospector.java	75	25	2
private static String FTLStringLiteralEnc() in freemarker-core/src/main/java/freemarker/template/utility/StringUtil.java	59	24	3
static void outputInstructionStack() in freemarker-core/src/main/java/freemarker/core/Environment.java	72	24	3