• File size measurements show the distribution of size of files.
• Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
• It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.

• There are 13,037 files with 2,474,055 lines of code.
• 421 very long files (777,039 lines of code)
• 720 long files (494,034 lines of code)
• 1,894 medium size files (592,465 lines of codeclsfd_ftr_w_mp_ins)
• 2,214 small files (316,335 lines of code)
• 7,788 very small files (294,182 lines of code)

There are 1000 files with lines longer than 120 characters. In total, there are 2273 long lines.

File	# lines	# units	# long lines
ScriptIntrinsicBLAS.java in android/renderscript	1389	122	143
ScriptIntrinsicBLAS.java in android/support/v8/renderscript	2176	122	139
BindingExpressionParser.java in android/databinding/parser	2339	236	121
Os.java in android/system	157	5	69
package.xml in root	65	-	47
TCKInstant.java in tck/java/time	1783	120	42
TCKOffsetDateTime.java in tck/java/time	1211	139	41
TCKZonedDateTime.java in tck/java/time	1881	237	35
SemaphoreTest.java in jsr166	486	37	32
TCKDuration.java in tck/java/time	2296	151	32
CameraCharacteristics.java in android/hardware/camera2	518	15	30
TCKDateTimeFormatters.java in tck/java/time/format	1211	100	27
RenderScript.java in android/support/v8/renderscript	1213	120	24
TCKOffsetTime.java in tck/java/time	1081	129	19
TCKThaiBuddhistChronology.java in tck/java/time/chrono	706	44	19
TCKMinguoChronology.java in tck/java/time/chrono	733	38	19
BindingExpressionBaseVisitor.java in android/databinding/parser	44	-	17
TCKZoneRules.java in tck/java/time/zone	886	63	16
TCKLocalDateTime.java in tck/java/time	2575	322	14
KeyChainSnapshotDeserializer.java in com/android/server/locksettings/recoverablekeystore/serialization	316	13	14
KeyChainSnapshotSerializer.java in com/android/server/locksettings/recoverablekeystore/serialization	147	13	14
RenderScript.java in android/renderscript	1194	151	13
TCKDateTimeFormatterBuilder.java in tck/java/time/format	646	69	12
CaptureResult.java in android/hardware/camera2	427	18	12
DateTimeFormatterBuilder.java in java/time/format	2456	147	12
OpTestCase.java in java/util/stream	483	46	11
Duration.java in java/time	451	62	11
OpTestCase.java in org/openjdk/testlib/java/util/stream	484	46	11
TCKDateTimeParseResolver.java in tck/java/time/format	1013	58	10
MethodHandles.java in java/lang/invoke	81	3	10
TCKFormatStyle.java in tck/java/time/format	44	2	9
TCKDateTimeFormatter.java in tck/java/time/format	726	72	9
TCKJapaneseChronology.java in tck/java/time/chrono	922	62	9
ResourceExpr.java in android/databinding/tool/expr	206	16	8
DOMResult.java in javax/xml/transform/dom	84	11	8
TestData.java in java/util/stream	273	30	8
LocalDate.java in java/time	635	76	8
TestData.java in org/openjdk/testlib/java/util/stream	274	30	8
CaptureRequest.java in android/hardware/camera2	586	41	7
XMLParser.java in android/databinding/parser	696	63	7
FlagOpTest.java in java/util/stream	214	12	7
AbstractChronology.java in java/time/chrono	386	27	7
ViewBindingAdapter.java in android/databinding/adapters	202	16	6
BindingExpressionBaseListener.java in android/databinding/parser	90	-	6
ZoneOffsetTransitionRule.java in java/time/zone	242	19	6
WeekFields.java in java/time/temporal	474	47	6
LocalDateTime.java in java/time	530	84	6
BigDecimal.java in java/math	1462	98	6
ConcurrentHashMap8Test.java in jsr166	682	92	5
TCKZoneOffsetTransitionRule.java in tck/java/time/zone	396	40	5