• There are 313 files with units, with 59,079 lines of code.
• 5 very complex files (McCabe index sum 251+; 12,633 lines of code)
• 10 complex files (McCabe index sum 126-250; 9,130 lines of code)
• 44 medium complex files (McCabe index sum 51-125; 17,505 lines of code)
• 42 slightly complex files (McCabe index sum 26-50; 8,028 lines of code)
• 212 simple files (McCabe index sum 1-25; 11,783 lines of code)
• 122 main files have no units (e.g. languages without unit analysis, or files without functions) and are not classified.

The McCabe index of a file grows with its size: per 100 lines tells a large but plain file from a dense one, and most complex unit whether the complexity sits in one unit or is spread over many.

File	# lines	# units	McCabe index (sum)	per 100 lines	most complex unit
JavaInputAstVisitor.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/googlejavaformat/java	4675	242	995	21	31
Maps.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	2771	370	485	18	9
MapMakerInternalMap.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	2142	225	374	17	9
CommandLine.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt	1159	105	341	29	22
Synchronized.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	1886	237	274	15	4
CharMatcher.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/base	1051	151	240	23	15
ImportNormalizer.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt	747	46	210	28	44
AbstractMapBasedMultimap.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	1261	147	205	16	5
LongMath.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/math	865	38	203	23	28
Multimaps.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	1151	145	199	17	5
Sets.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	1183	121	187	16	9
InlineParserImpl.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/org/commonmark/internal	707	48	184	26	21
Preconditions.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/base	585	84	168	29	3
Iterators.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	796	73	150	19	7
Multisets.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	784	74	138	18	7
IntMath.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/math	413	26	119	29	17
OpsBuilder.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/googlejavaformat	440	41	116	26	45
Doc.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/googlejavaformat	503	69	115	23	11
TreeRangeMap.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	663	57	115	17	10
Lists.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	665	75	115	17	8
ImmutableRangeSet.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	587	53	110	19	7
ImmutableSet.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	580	60	108	19	7
DocumentParser.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/org/commonmark/internal	453	36	104	23	28
ImmutableMap.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	727	76	102	14	6
CoreMarkdownNodeRenderer.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/org/commonmark/renderer/markdown	446	34	101	23	23
Longs.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/primitives	442	47	98	22	12
JavaInput.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/googlejavaformat/java	523	39	97	19	31
TreeRangeSet.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	744	37	95	13	10
Predicates.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/base	456	75	95	21	3
ImmutableList.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	476	70	94	20	4
JfmtToolProvider.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt	423	15	92	22	22
ImmutableSortedMap.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	666	61	87	13	6
Ints.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/primitives	394	45	86	22	6
Collections2.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	425	47	80	19	6
Iterables.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	469	48	78	17	4
ImmutableMultimap.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	460	58	78	17	6
Cut.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	352	57	77	22	4
Booleans.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/primitives	320	34	75	23	6
LinkScanner.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/org/commonmark/internal/util	175	6	72	41	33
RegularImmutableSortedSet.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	254	29	69	27	12
JavaOutput.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/googlejavaformat/java	281	13	66	23	26
ImportOrderer.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/googlejavaformat/java	269	17	64	24	19
Ordering.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	293	36	64	22	7
CoreTextContentNodeRenderer.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/org/commonmark/renderer/text	281	33	62	22	12
Streams.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	551	28	62	11	5
ImmutableSortedSet.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	411	43	62	15	5
ImmutableMultiset.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	365	48	61	17	4
UnsignedLongs.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/primitives	240	23	61	25	8
Scanner.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/org/commonmark/parser/beta	218	18	58	27	8
Range.java in src/com.netflix.tools.jfmt/classes/com/netflix/tools/jfmt/internal/com/google/common/collect	291	26	58	20	8

• File complexity is the sum of the McCabe indexes (conditional complexity) of the units (methods, functions...) in a file.
• Files are classified in five categories based on that sum: 1-25 (simple files), 26-50 (slightly complex files), 51-125 (medium complex files), 126-250 (complex files), 251+ (very complex files). The default bands are five times the unit complexity bands, as a file is a group of units.
• Only main code files with units are classified. Files without units (languages without unit analysis, or files without functions) have no complexity to measure and are left out rather than counted as simple.
• A very complex file holds many decisions, which often means it has too many responsibilities: a candidate to split, and a place where changes need more testing.