File age measurements show the distribution of file ages (days since the first commit) and the recency of file updates (days since the latest commit).
Summary
- Number of files: 22084
- Daily file updates (only one update per file and date counted): 7127
- First update: 2018-02-02
- Latest update: 2022-01-25
- Days between first and latest update: 1454 (207 weeks, estimated 1035 working days)
- Active days (at least one file change): 216
- Data:
File Change History Overall
File Age Distribution Overall
Days since first update
- There are 2,962 files with 1,197,181 lines of code in files.
- 2,543 files that are 366+ days old (1,044,758 lines of code)
- 114 files that are 181-365 days old (50,787 lines of code)
- 39 files that are 91-180 days old (14,103 lines of code)
- 245 files that are 31-90 days old (80,637 lines of code)
- 21 files that are 1-30 days old (6,896 lines of code)
Legend:
366+
181-365
91-180
31-90
1-30
Latest Change Distribution Overall
Days since last update
- There are 2,962 files with 1,197,181 lines of code in files.
- 1,890 files have been last changed 366+ days ago (607,789 lines of code)
- 598 files have been last changed 181-365 days ago (334,209 lines of code)
- 143 files have been last changed 91-180 days ago (83,504 lines of code)
- 272 files have been last changed 31-90 days ago (121,468 lines of code)
- 59 files have been last changed 1-30 days ago (50,211 lines of code)
Legend:
366+
181-365
91-180
31-90
1-30
File Change History per File Extension
java, properties, js, hpp, cpp, c, xml, h, html, sh, policy, txt, make, m, bat, in, nr, xsd, cfg, d, xsl, awk, m4, gradle, patch, s, props, md, ksh, plist, obj, tab, css, wsdl, Policy, csh, sed, cs, dsp, pl, lex, jsp, TXT, sp, cc, gitignore, asm, cxx, fx, json, hs, login, spec, inc
File Age Distribution per Extension
Days since first update
366+
181-365
91-180
31-90
1-30
Latest Change Distribution per Extension
Days since last update
366+
181-365
91-180
31-90
1-30
File Change History per Logical Decomposition
primary
primary (file age distribution)
Days since first update
366+
181-365
91-180
31-90
1-30
primary (latest change distribution)
Days since last update
366+
181-365
91-180
31-90
1-30
Oldest Files (Top 20)
| File | # lines | # units | last modified (days ago) | created (days ago) | # changes |
|---|---|---|---|---|---|
 g1CollectedHeap.cpp in src/hotspot/src/share/vm/gc_implementation/g1 |
4768 | 266 | 57 | 1461 | 23 |
genCollectedHeap.cpp in src/hotspot/src/share/vm/memory |
1041 | 70 | 387 | 1461 | 12 |
 Types.java in src/langtools/src/share/classes/com/sun/tools/javac/code |
3528 | 321 | 1458 | 1458 | 1 |
LambdaToMethod.java in src/langtools/src/share/classes/com/sun/tools/javac/comp |
1658 | 104 | 309 | 1458 | 4 |
g1CollectorPolicy.cpp in src/hotspot/src/share/vm/gc_implementation/g1 |
1636 | 72 | 244 | 1458 | 9 |
symbolTable.cpp in src/hotspot/src/share/vm/classfile |
815 | 39 | 387 | 1458 | 7 |
symbolTable.hpp in src/hotspot/src/share/vm/classfile |
222 | 24 | 1458 | 1458 | 1 |
g1ErgoVerbose.hpp in src/hotspot/src/share/vm/gc_implementation/g1 |
95 | 3 | 244 | 1458 | 3 |
globals.hpp in src/hotspot/src/share/vm/runtime |
3922 | 12 | 106 | 1426 | 27 |
os_linux.cpp in src/hotspot/src/os/linux/vm |
4269 | 232 | 309 | 1423 | 31 |
Attr.java in src/langtools/src/share/classes/com/sun/tools/javac/comp |
3480 | 181 | 1423 | 1423 | 1 |
Class.java in src/jdk/src/share/classes/java/lang |
1445 | 93 | 1423 | 1423 | 1 |
MemberEnter.java in src/langtools/src/share/classes/com/sun/tools/javac/comp |
1232 | 67 | 1423 | 1423 | 1 |
JavacProcessingEnvironment.java in src/langtools/src/share/classes/com/sun/tools/javac/processing |
1089 | 90 | 937 | 1423 | 4 |
memoryService.cpp in src/hotspot/src/share/vm/services |
496 | 21 | 1003 | 1423 | 4 |
Field.java in src/jdk/src/share/classes/java/lang/reflect |
410 | 38 | 784 | 1423 | 2 |
Executable.java in src/jdk/src/share/classes/java/lang/reflect |
327 | 13 | 784 | 1423 | 2 |
memoryManager.cpp in src/hotspot/src/share/vm/services |
259 | 11 | 1003 | 1423 | 4 |
memoryManager.hpp in src/hotspot/src/share/vm/services |
202 | 34 | 1003 | 1423 | 4 |
memoryService.hpp in src/hotspot/src/share/vm/services |
165 | 7 | 1003 | 1423 | 4 |
Files Not Recently Changed (Top 20)
| File | # lines | # units | last modified (days ago) | created (days ago) | # changes |
|---|---|---|---|---|---|
symbolTable.hpp in src/hotspot/src/share/vm/classfile |
222 | 24 | 1458 | 1458 | 1 |
Types.java in src/langtools/src/share/classes/com/sun/tools/javac/code |
3528 | 321 | 1458 | 1458 | 1 |
MemberEnter.java in src/langtools/src/share/classes/com/sun/tools/javac/comp |
1232 | 67 | 1423 | 1423 | 1 |
Class.java in src/jdk/src/share/classes/java/lang |
1445 | 93 | 1423 | 1423 | 1 |
Attr.java in src/langtools/src/share/classes/com/sun/tools/javac/comp |
3480 | 181 | 1423 | 1423 | 1 |
JMap.java in src/jdk/src/share/classes/sun/tools/jmap |
263 | 11 | 1413 | 1413 | 1 |
JavaUtilJarAccess.java in src/jdk/src/share/classes/sun/misc |
21 | - | 1196 | 1196 | 1 |
GCMParameterSpec.java in src/jdk/src/share/classes/javax/crypto/spec |
34 | 4 | 1196 | 1196 | 1 |
JavaUtilJarAccessImpl.java in src/jdk/src/share/classes/java/util/jar |
36 | 8 | 1196 | 1196 | 1 |
CipherInputStream.java in src/jdk/src/share/classes/javax/crypto |
118 | 10 | 1196 | 1196 | 1 |
RIFFReader.java in src/jdk/src/share/classes/com/sun/media/sound |
264 | 23 | 1196 | 1196 | 1 |
NetworkInterface.java in src/jdk/src/share/classes/java/net |
274 | 21 | 1196 | 1196 | 1 |
Manifest.java in src/jdk/src/share/classes/java/util/jar |
277 | 25 | 1196 | 1196 | 1 |
 NetworkInterface_winXP.c in src/jdk/src/windows/native/java/net |
633 | 6 | 1196 | 1196 | 1 |
InetAddress.java in src/jdk/src/share/classes/java/net |
730 | 51 | 1196 | 1196 | 1 |
Win32ShellFolder2.java in src/jdk/src/windows/classes/sun/awt/shell |
742 | 50 | 1196 | 1196 | 1 |
DLSSoundbank.java in src/jdk/src/share/classes/com/sun/media/sound |
1097 | 52 | 1196 | 1196 | 1 |
linkResolver.cpp in src/hotspot/src/share/vm/interpreter |
1289 | 51 | 1196 | 1196 | 1 |
Global.java in src/nashorn/src/jdk/nashorn/internal/objects |
1568 | 187 | 1196 | 1196 | 1 |
jvm_md.h in src/jdk/src/windows/javavm/export |
49 | - | 1189 | 1189 | 1 |
Most Recently Created Files (Top 20)
| File | # lines | # units | last modified (days ago) | created (days ago) | # changes |
|---|---|---|---|---|---|
mlib_v_ImageFilters.c in src/jdk/src/solaris/native/sun/awt/medialib |
14365 | - | |||
IBM964.java in src/jdk/src/share/classes/sun/nio/cs/ext |
10477 | 12 | |||
IBM33722.java in src/jdk/src/share/classes/sun/nio/cs/ext |
7082 | 12 | |||
D3DShaders.h in src/jdk/src/windows/native/sun/java2d/d3d |
5969 | - | |||
X11GB18030_1.java in src/jdk/src/solaris/classes/sun/awt/motif |
5224 | 7 | |||
X11Johab.java in src/jdk/src/solaris/classes/sun/awt/motif |
4739 | 6 | |||
Component.java in src/jdk/src/share/classes/java/awt |
4561 | 410 | |||
JTable.java in src/jdk/src/share/classes/javax/swing |
4449 | 393 | |||
ConcurrentHashMap.java in src/jdk/src/share/classes/java/util/concurrent |
4264 | 186 | |||
X11GB18030_0.java in src/jdk/src/solaris/classes/sun/awt/motif |
4228 | 7 | |||
CodeGenerator.java in src/nashorn/src/jdk/nashorn/internal/codegen |
3971 | 231 | |||
mlib_ImageColorTrue2Index.c in src/jdk/src/share/native/sun/awt/medialib |
3723 | 27 | |||
ExpressionParser.java in src/jdk/src/share/classes/com/sun/tools/example/debug/expr |
3667 | 211 | |||
CanonData.cpp in src/jdk/src/share/native/sun/font/layout |
3607 | - | |||
mlib_c_ImageLookUp_f.c in src/jdk/src/share/native/sun/awt/medialib |
3360 | 30 | |||
JavacParser.java in src/langtools/src/share/classes/com/sun/tools/javac/parser |
3216 | 173 | |||
jdwp.spec in src/jdk/make/data/jdwp |
3180 | - | |||
Resolve.java in src/langtools/src/share/classes/com/sun/tools/javac/comp |
3173 | 224 | |||
PolicyTool.java in src/jdk/src/share/classes/sun/security/tools/policytool |
3121 | 141 | |||
CompactSyntax.java in src/jaxws/src/share/jaxws_classes/com/sun/xml/internal/rngom/parse/compact |
3107 | 190 |
Most Recently Changed Files (Top 20)
| File | # lines | # units | last modified (days ago) | created (days ago) | # changes |
|---|---|---|---|---|---|
mlib_v_ImageFilters.c in src/jdk/src/solaris/native/sun/awt/medialib |
14365 | - | |||
IBM964.java in src/jdk/src/share/classes/sun/nio/cs/ext |
10477 | 12 | |||
IBM33722.java in src/jdk/src/share/classes/sun/nio/cs/ext |
7082 | 12 | |||
D3DShaders.h in src/jdk/src/windows/native/sun/java2d/d3d |
5969 | - | |||
X11GB18030_1.java in src/jdk/src/solaris/classes/sun/awt/motif |
5224 | 7 | |||
X11Johab.java in src/jdk/src/solaris/classes/sun/awt/motif |
4739 | 6 | |||
Component.java in src/jdk/src/share/classes/java/awt |
4561 | 410 | |||
JTable.java in src/jdk/src/share/classes/javax/swing |
4449 | 393 | |||
ConcurrentHashMap.java in src/jdk/src/share/classes/java/util/concurrent |
4264 | 186 | |||
X11GB18030_0.java in src/jdk/src/solaris/classes/sun/awt/motif |
4228 | 7 | |||
CodeGenerator.java in src/nashorn/src/jdk/nashorn/internal/codegen |
3971 | 231 | |||
mlib_ImageColorTrue2Index.c in src/jdk/src/share/native/sun/awt/medialib |
3723 | 27 | |||
ExpressionParser.java in src/jdk/src/share/classes/com/sun/tools/example/debug/expr |
3667 | 211 | |||
CanonData.cpp in src/jdk/src/share/native/sun/font/layout |
3607 | - | |||
mlib_c_ImageLookUp_f.c in src/jdk/src/share/native/sun/awt/medialib |
3360 | 30 | |||
JavacParser.java in src/langtools/src/share/classes/com/sun/tools/javac/parser |
3216 | 173 | |||
jdwp.spec in src/jdk/make/data/jdwp |
3180 | - | |||
Resolve.java in src/langtools/src/share/classes/com/sun/tools/javac/comp |
3173 | 224 | |||
PolicyTool.java in src/jdk/src/share/classes/sun/security/tools/policytool |
3121 | 141 | |||
CompactSyntax.java in src/jaxws/src/share/jaxws_classes/com/sun/xml/internal/rngom/parse/compact |
3107 | 190 |