리눅스에서 동작하는 자바 어플리케이션 (톰캣) 을 실행하다 문제가 생겼을 때 써먹는 스크립트.

기본적인 시스템 정보와 자바 heap,native heap, 자바 쓰레드 정보, 자바 쓰레드 중에 cpu 많이 먹는 녀석등을 출력한다.

#!/bin/bash

if [ -z "$JAVA_HOME" ]
then
    echo "\$JAVA_HOME must be defined"
    exit -1
fi

if [ $# -eq 0  ]; then
    echo "Invalid argument count. Please input $pid of java process"
    exit -1
fi

pid=$1
jstackBin="$JAVA_HOME/bin/jstack"
jmapBin="$JAVA_HOME/bin/jmap"
dateStr=`date '+%Y%m%d_%H%M%S'`
dumpFile=threadDump.$dateStr

# init
touch dumpFile
echo $dateStr > $dumpFile
echo "" >> $dumpFile
echo "### ps" >> $dumpFile
echo "" >> $dumpFile
ps -ef | grep $pid | grep -v grep >> $dumpFile

# top result
echo "" >> $dumpFile
echo "### top result" >> $dumpFile
echo "" >> $dumpFile
top -cb -n 1 | head -n 12 >> $dumpFile

# all cpu ratio
echo "" >> $dumpFile
echo "### all cpu (sar -P ALL)" >> $dumpFile
echo "" >> $dumpFile
sar -P ALL 1 1 >> $dumpFile

# runq
echo "" >> $dumpFile
echo "### runq (sar -q)" >> $dumpFile
echo "" >> $dumpFile
sar -q 1 1 >> $dumpFile

# all netstat
echo "" >> $dumpFile
echo "### netsat " >> $dumpFile
echo "" >> $dumpFile
netstat -an >> $dumpFile

# cpu ratio of java thread
echo "" >> $dumpFile
echo "### cpu ratio of java thread" >> $dumpFile
echo "" >> $dumpFile
echo "cpu  thread-id" >> $dumpFile
ps -mo pcpu,lwp -p31527 | awk '{if ($2 ~/[0-9]/) {print $2  "% " $1""}}' | sort -k 1 -r >> $dumpFile 2>&1
echo "" >> $dumpFile

# heap memory (native heap + java heap)
echo "" >> $dumpFile
echo "### native heap" >> $dumpFile
echo "" >> $dumpFile
ps -p $pid -o pid,vsz,rss,drs,%mem >> $dumpFile 2>&1
echo "" >> $dumpFile

# thread dump
echo "" >> $dumpFile
echo "### thread dump" >> $dumpFile
echo "" >> $dumpFile
$jstackBin -F $pid >> $dumpFile 2>&1

# jmap  heap summary
echo "" >> $dumpFile
echo "### heap summary " >> $dumpFile
echo "" >> $dumpFile
$jmapBin -F -heap $pid >> $dumpFile 2>&1

# jmap histogram
echo "" >> $dumpFile
echo "### heap historam " >> $dumpFile
echo "" >> $dumpFile
$jmapBin -F -histo $pid | head -n 200 >> $dumpFile 2>&1


echo "system & java data dump : $dumpFile"

 

이 코드를 이용하면, 다음과 같은 java 어플리케이션은 다음과 같이 출력된다.

 

* 자바 어플리케이션

class RunnableThread implements Runnable {

        Thread runner;
        public RunnableThread() {
        }
        public RunnableThread(String threadName) {
                runner = new Thread(this, threadName); // (1) Create a new thread.
                System.out.println(runner.getName());
                runner.start(); // (2) Start the thread.
        }
        public void run() {
                //Display info about this particular thread
                System.out.println(Thread.currentThread());
        }
}

public class RunnableExample {

        public static void main(String[] args) {
                Thread thread1 = new Thread(new RunnableThread(), "thread1");
                Thread thread2 = new Thread(new RunnableThread(), "thread2");
                RunnableThread thread3 = new RunnableThread("thread3");
                //Start the threads
                thread1.start();
                thread2.start();
                try {
                        while(true) {
                        //delay for one second
                        Thread.currentThread().sleep(0);
;
                        }
                } catch (InterruptedException e) {
                }
                //Display info about the main thread
                System.out.println(Thread.currentThread());
        }
}

 

* dump 파일

./dump.sh java프로세스id

### ps

www       8055  6211  0 19:21 pts/1    00:00:00 /bin/bash ./test.sh 31527
www      31527 30883 99 Feb01 pts/0    1-01:05:58 /home/www/jdk6/bin/java RunnableExample

### top result

top - 19:21:20 up 36 days,  4:44,  2 users,  load average: 1.00, 1.00, 1.00
Tasks: 162 total,   1 running, 161 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.1%us,  0.2%sy,  0.0%ni, 99.7%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:  12273860k total,  4505204k used,  7768656k free,   375084k buffers
Swap:  2096472k total,        0k used,  2096472k free,  3825760k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                          
31527 www       15   0 1171m  12m 6504 S 99.4  0.1   1505:59 /home/www/jdk6/bin/java RunnableExample          
    1 root      15   0 10344  680  572 S  0.0  0.0   0:01.37 init [3]                                         
    2 root      RT  -5     0    0    0 S  0.0  0.0   0:00.04 [migration/0]                                    
    3 root      34  19     0    0    0 S  0.0  0.0   0:00.02 [ksoftirqd/0]                                    
    4 root      RT  -5     0    0    0 S  0.0  0.0   0:00.00 [watchdog/0]                                     

### all cpu (sar -P ALL)

Linux 2.6.18-164.el5 (blgdbs101)        2012³â 02¿ù 02ÀÏ

19½Ã 21ºÐ 20ÃÊ       CPU     %user     %nice   %system   %iowait    %steal     %idle
19½Ã 21ºÐ 21ÃÊ       all      2.50      0.00      5.83      0.00      0.00     91.67
19½Ã 21ºÐ 21ÃÊ         0     30.00      0.00     70.00      0.00      0.00      0.00
19½Ã 21ºÐ 21ÃÊ         1      0.00      0.00      0.00      0.00      0.00    100.00
19½Ã 21ºÐ 21ÃÊ         2      0.00      0.00      0.00      0.00      0.00    100.00
19½Ã 21ºÐ 21ÃÊ         3      0.00      0.00      0.00      0.00      0.00    100.00
19½Ã 21ºÐ 21ÃÊ         4      0.00      0.00      0.00      0.00      0.00    100.00
19½Ã 21ºÐ 21ÃÊ         5      0.00      0.00      0.00      0.00      0.00    100.00
19½Ã 21ºÐ 21ÃÊ         6      0.00      0.00      0.00      0.00      0.00    100.00
19½Ã 21ºÐ 21ÃÊ         7      0.00      0.00      0.00      0.00      0.00    100.00
19½Ã 21ºÐ 21ÃÊ         8      0.00      0.00      0.00      0.00      0.00    100.00
19½Ã 21ºÐ 21ÃÊ         9      0.00      0.00      0.00      0.00      0.00    100.00
19½Ã 21ºÐ 21ÃÊ        10      0.00      0.00      0.99      0.00      0.00     99.01
19½Ã 21ºÐ 21ÃÊ        11      0.00      0.00      0.00      0.00      0.00    100.00

Average:          CPU     %user     %nice   %system   %iowait    %steal     %idle
Average:          all      2.50      0.00      5.83      0.00      0.00     91.67
Average:            0     30.00      0.00     70.00      0.00      0.00      0.00
Average:            1      0.00      0.00      0.00      0.00      0.00    100.00
Average:            2      0.00      0.00      0.00      0.00      0.00    100.00
Average:            3      0.00      0.00      0.00      0.00      0.00    100.00
Average:            4      0.00      0.00      0.00      0.00      0.00    100.00
Average:            5      0.00      0.00      0.00      0.00      0.00    100.00
Average:            6      0.00      0.00      0.00      0.00      0.00    100.00
Average:            7      0.00      0.00      0.00      0.00      0.00    100.00
Average:            8      0.00      0.00      0.00      0.00      0.00    100.00
Average:            9      0.00      0.00      0.00      0.00      0.00    100.00
Average:           10      0.00      0.00      0.99      0.00      0.00     99.01
Average:           11      0.00      0.00      0.00      0.00      0.00    100.00

### runq (sar -q)

Linux 2.6.18-164.el5 (blgdbs101)        2012³â 02¿ù 02ÀÏ

19½Ã 21ºÐ 21ÃÊ   runq-sz  plist-sz   ldavg-1   ldavg-5  ldavg-15
19½Ã 21ºÐ 22ÃÊ         1       233      1.00      1.00      1.00
Average:            1       233      1.00      1.00      1.00

### netsat

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address               Foreign Address             State     
tcp        0      0 0.0.0.0:10560               0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:544                 0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:10561               0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:6051                0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:873                 0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:2105                0.0.0.0:*                   LISTEN     
tcp        0      0 0.0.0.0:543                 0.0.0.0:*                   LISTEN     
tcp        0      0 1.2.80.92:2105            1.2.22.70:53828           ESTABLISHED
tcp        0      0 1.2.80.92:55785           1.2.235.21:35001          ESTABLISHED
tcp        0      0 1.2.80.92:2105            1.2.22.70:39864           ESTABLISHED
tcp        0      0 1.2.80.92:53006           1.2.235.22:35001          ESTABLISHED
udp    51912      0 0.0.0.0:333                 0.0.0.0:*                              
udp        0      0 0.0.0.0:421                0.0.0.0:*                              
udp        0      0 0.0.0.0:10241               0.0.0.0:*                              
udp        0      0 1.2.80.92:142             0.0.0.0:*                              
udp        0      0 127.0.0.1:22               0.0.0.0:*                              
udp        0      0 0.0.0.0:121                 0.0.0.0:*                              
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node Path
unix  2      [ ACC ]     STREAM     LISTENING     7636   /opt/nbp/noms/var/master
unix  2      [ ]         DGRAM                    2964   @/org/kernel/udev/udevd
unix  14     [ ]         DGRAM                    7046   /dev/log
unix  2      [ ]         DGRAM                    4980259
unix  2      [ ]         DGRAM                    4980239
unix  2      [ ]         DGRAM                    4843655
unix  2      [ ]         DGRAM                    4843635
unix  2      [ ]         DGRAM                    4835066
unix  2      [ ]         DGRAM                    1236651
unix  3      [ ]         STREAM     CONNECTED     7661   /opt/nbp/noms/var/master
unix  3      [ ]         STREAM     CONNECTED     7660  
unix  2      [ ]         DGRAM                    7634  
unix  2      [ ]         DGRAM                    7543  
unix  2      [ ]         DGRAM                    7344  
unix  2      [ ]         DGRAM                    7309  
unix  2      [ ]         DGRAM                    7286  
unix  2      [ ]         DGRAM                    7055  

### cpu ratio of java thread

cpu  thread-id
31546% 0.0
31545% 0.0
31544% 0.0
31543% 0.0
31542% 0.0
31541% 0.0
31540% 0.0
31539% 0.0
31538% 0.0
31537% 0.0
31536% 0.0
31535% 0.0
31534% 0.0
31533% 0.0
31532% 0.0
31531% 0.0
31530% 0.0
31529% 0.0
31528% 99.9
31527% 0.0


### native heap

  PID    VSZ   RSS   DRS %MEM
31527 1199636 12372 1199598  0.1


### thread dump

Attaching to process ID 31527, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 19.1-b02
Deadlock Detection:

No deadlocks found.

Thread 31542: (state = BLOCKED)


Thread 31541: (state = BLOCKED)
- java.lang.Object.wait(long) @bci=0 (Interpreted frame)
- java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=118 (Interpreted frame)
- java.lang.ref.ReferenceQueue.remove() @bci=2, line=134 (Interpreted frame)
- java.lang.ref.Finalizer$FinalizerThread.run() @bci=3, line=159 (Interpreted frame)


Thread 31540: (state = BLOCKED)
- java.lang.Object.wait(long) @bci=0 (Interpreted frame)
- java.lang.Object.wait() @bci=2, line=485 (Interpreted frame)
- java.lang.ref.Reference$ReferenceHandler.run() @bci=46, line=116 (Interpreted frame)


Thread 31528: (state = IN_VM)
- java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise)
- RunnableExample.main(java.lang.String[]) @bci=57, line=30 (Compiled frame)

 

### heap summary

Attaching to process ID 31527, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 19.1-b02

using thread-local object allocation.
Parallel GC with 10 thread(s)

Heap Configuration:
   MinHeapFreeRatio = 40
   MaxHeapFreeRatio = 70
   MaxHeapSize      = 1073741824 (1024.0MB)
   NewSize          = 1048576 (1.0MB)
   MaxNewSize       = 4294901760 (4095.9375MB)
   OldSize          = 4194304 (4.0MB)
   NewRatio         = 2
   SurvivorRatio    = 8
   PermSize         = 16777216 (16.0MB)
   MaxPermSize      = 67108864 (64.0MB)

Heap Usage:
PS Young Generation
Eden Space:
   capacity = 16842752 (16.0625MB)
   used     = 1347584 (1.28515625MB)
   free     = 15495168 (14.77734375MB)
   8.000972762645915% used
From Space:
   capacity = 2752512 (2.625MB)
   used     = 0 (0.0MB)
   free     = 2752512 (2.625MB)
   0.0% used
To Space:
   capacity = 2752512 (2.625MB)
   used     = 0 (0.0MB)
   free     = 2752512 (2.625MB)
   0.0% used
PS Old Generation
   capacity = 44761088 (42.6875MB)
   used     = 0 (0.0MB)
   free     = 44761088 (42.6875MB)
   0.0% used
PS Perm Generation
   capacity = 16777216 (16.0MB)
   used     = 2069280 (1.973419189453125MB)
   free     = 14707936 (14.026580810546875MB)
   12.333869934082031% used

### heap historam

Object Histogram:

num       #instances    #bytes  Class description
--------------------------------------------------------------------------
1:              4831    483496  * ConstMethodKlass
2:              8140    396296  * SymbolKlass
3:              4831    388832  * MethodKlass
4:              1886    224232  char[]
5:              320     187152  * ConstantPoolKlass
6:              320     130496  * InstanceKlassKlass
7:              294     127056  * ConstantPoolCacheKlass
8:              516     91664   byte[]
9:              1743    41832   java.lang.String
10:             390     37440   java.lang.Class
11:             529     31304   * System ObjArray
12:             480     31168   short[]
13:             743     23776   java.util.TreeMap$Entry
14:             365     19472   int[]
15:             327     14000   java.lang.Object[]
16:             41      13448   * ObjArrayKlassKlass
17:             76      6080    java.lang.reflect.Method
18:             183     5760    java.lang.String[]
19:             96      4608    java.nio.HeapCharBuffer
20:             95      4560    java.nio.HeapByteBuffer
21:             40      2880    java.lang.reflect.Field
22:             8       2624    * TypeArrayKlassKlass
23:             113     2256    java.lang.Class[]
24:             8       1856    * MethodDataKlass
25:             58      1392    java.util.Hashtable$Entry
26:             17      1360    java.util.HashMap$Entry[]
27:             12      1344    * KlassKlass
28:             71      1136    java.lang.StringBuilder
29:             10      1040    java.util.Hashtable$Entry[]
30:             8       896     java.lang.Thread
31:             13      728     java.net.URL
32:             19      608     java.util.Locale
33:             15      600     java.util.HashMap
34:             35      560     java.io.File
35:             16      512     java.util.concurrent.ConcurrentHashMap$Segment
36:             8       512     java.lang.reflect.Constructor
37:             19      496     java.util.concurrent.ConcurrentHashMap$HashEntry[]
38:             20      480     java.util.concurrent.ConcurrentHashMap$HashEntry
39:             13      416     java.lang.ref.SoftReference
40:             13      416     java.util.LinkedHashMap$Entry
41:             16      384     java.util.concurrent.locks.ReentrantLock$NonfairSync
42:             14      336     java.util.HashMap$Entry
43:             10      320     java.io.ObjectStreamField
44:             2       320     java.lang.reflect.Method[]
45:             12      288     java.security.AccessControlContext
46:             5       280     sun.nio.cs.ext.EUC_KR$Decoder
47:             11      264     java.io.ExpiringCache$Entry
48:             16      256     sun.security.action.GetPropertyAction
49:             6       240     java.util.Hashtable
50:             7       224     java.lang.ref.Finalizer
51:             9       216     java.net.Parts
52:             8       192     java.lang.OutOfMemoryError
53:             4       192     java.util.TreeMap
54:             4       184     java.lang.reflect.Field[]
55:             3       168     sun.nio.cs.ext.EUC_KR$Encoder
56:             7       168     java.util.Vector
57:             4       160     sun.misc.URLClassPath$JarLoader
58:             8       152     java.io.ObjectStreamField[]
59:             9       144     java.lang.StringBuffer
60:             6       144     java.util.ArrayList
61:             15      120     java.lang.Object
62:             1       112     java.lang.ref.Reference$ReferenceHandler
63:             2       112     java.io.ExpiringCache$1
64:             1       112     java.lang.ref.Finalizer$FinalizerThread
65:             6       96      java.io.FileDescriptor
66:             2       96      java.lang.ThreadGroup
67:             4       96      sun.reflect.NativeConstructorAccessorImpl
68:             2       96      sun.nio.cs.StreamEncoder
69:             1       96      sun.net.www.protocol.file.FileURLConnection
70:             1       80      java.util.concurrent.ConcurrentHashMap$Segment[]
71:             1       80      java.lang.ThreadLocal$ThreadLocalMap$Entry[]
72:             5       80      sun.misc.URLClassPath$3
73:             2       80      java.io.BufferedWriter
74:             2       80      java.util.StringTokenizer
75:             1       72      sun.misc.Launcher$ExtClassLoader
76:             3       72      java.lang.ref.WeakReference
77:             1       72      sun.misc.Launcher$AppClassLoader
78:             3       72      sun.nio.cs.Surrogate$Parser
79:             3       72      java.util.Stack
80:             3       72      java.lang.RuntimePermission
81:             3       72      java.lang.NoSuchMethodError
82:             4       64      java.net.URLClassLoader$1
83:             2       64      java.io.FilePermission
84:             4       64      java.lang.Class$1
85:             4       64      java.lang.reflect.Constructor[]
86:             2       64      java.security.PrivilegedActionException
87:             4       64      sun.reflect.DelegatingConstructorAccessorImpl
88:             2       64      sun.misc.URLClassPath$FileLoader$1
89:             2       64      java.io.ExpiringCache
90:             2       64      java.lang.ClassNotFoundException
91:             2       64      java.lang.Thread[]
92:             2       64      java.lang.ThreadLocal$ThreadLocalMap$Entry
93:             4       64      sun.misc.MetaIndex
94:             2       64      java.io.PrintStream
95:             4       64      java.io.FileInputStream
96:             2       64      sun.misc.URLClassPath
97:             2       64      java.security.CodeSource
98:             3       56      java.io.File[]
99:             2       48      java.net.URL[]
100:            2       48      java.lang.ref.ReferenceQueue
101:            1       48      java.util.Properties
102:            2       48      java.security.Permissions
103:            2       48      java.io.BufferedOutputStream
104:            2       48      java.lang.ref.ReferenceQueue$Null
105:            1       48      java.io.BufferedReader
106:            3       48      sun.misc.Signal
107:            3       48      java.security.ProtectionDomain[]
108:            1       48      long[]
109:            3       48      java.lang.ThreadLocal
110:            2       48      java.io.OutputStreamWriter
111:            3       48      java.nio.charset.CodingErrorAction
112:            2       48      java.io.FileOutputStream
113:            3       48      RunnableThread
114:            3       48      java.lang.Boolean
115:            3       48      java.lang.Integer
116:            1       40      sun.nio.cs.StandardCharsets$Cache
117:            1       40      sun.nio.cs.StandardCharsets$Aliases
118:            1       40      sun.nio.cs.StreamDecoder
119:            1       40      java.util.concurrent.ConcurrentHashMap
120:            1       40      sun.nio.cs.StandardCharsets$Classes
121:            5       40      java.lang.Class$3
122:            2       32      java.util.HashSet
123:            1       32      java.lang.ClassLoader$NativeLibrary
124:            1       32      java.lang.OutOfMemoryError[]
125:            1       32      sun.misc.SoftCache
126:            4       32      java.lang.ref.ReferenceQueue$Lock
127:            2       32      java.io.FilePermission$1
128:            1       32      java.util.concurrent.atomic.AtomicReferenceFieldUpdater$AtomicReferenceFieldUpdaterImpl
129:            2       32      sun.misc.NativeSignalHandler
130:            2       32      java.nio.ByteOrder
131:            1       32      java.lang.ThreadGroup[]
132:            1       32      java.util.Collections$SynchronizedMap
133:            1       32      sun.nio.cs.ext.ExtendedCharsets
134:            4       32      sun.reflect.ReflectionFactory$GetReflectionFactoryAction
135:            1       32      java.security.ProtectionDomain
136:            1       32      java.io.BufferedInputStream
137:            2       32      java.nio.charset.CoderResult
138:            1       24      java.io.FileReader
139:            1       24      sun.net.www.MessageHeader
140:            1       24      java.security.BasicPermissionCollection
141:            3       24      sun.reflect.ReflectionFactory$1
142:            1       24      java.io.UnixFileSystem
143:            1       24      java.lang.StringCoding$StringDecoder
144:            1       24      java.lang.NullPointerException
145:            1       24      java.lang.VirtualMachineError
146:            1       24      java.lang.reflect.ReflectPermission
147:            1       24      sun.misc.Launcher$AppClassLoader$1
148:            1       24      sun.nio.cs.StandardCharsets
149:            1       24      java.lang.ThreadLocal$ThreadLocalMap
150:            1       24      java.util.BitSet
151:            1       24      java.lang.ArithmeticException
152:            1       24      java.lang.StringCoding$StringEncoder
153:            1       24      sun.nio.cs.ext.EUC_KR
154:            1       24      java.lang.ref.Reference
155:            1       16      java.nio.charset.CoderResult$1
156:            1       16      java.util.Collections$EmptyMap
157:            1       16      sun.misc.Launcher$ExtClassLoader$1
158:            2       16      sun.net.www.protocol.jar.Handler
159:            1       16      java.io.FilePermissionCollection
160:            1       16      java.security.Principal[]
161:            1       16      java.util.Collections$EmptyList
162:            1       16      java.lang.StackTraceElement[]
163:            1       16      java.security.cert.Certificate[]
164:            1       16      java.security.Policy$UnsupportedEmptyCollection
165:            1       16      sun.jkernel.DownloadManager$1
166:            1       16      java.util.concurrent.atomic.AtomicInteger
167:            1       16      sun.misc.URLClassPath$FileLoader
168:            1       16      java.nio.charset.CoderResult$2
169:            1       16      sun.misc.Launcher
170:            1       16      java.security.ProtectionDomain$Key
171:            1       16      java.lang.SystemClassLoaderAction
172:            1       16      java.lang.ClassLoader$3
173:            1       8       java.lang.reflect.ReflectAccess
174:            1       8       java.net.UnknownContentHandler
175:            1       8       sun.net.www.protocol.file.Handler
176:            1       8       java.lang.System$2
177:            1       8       java.security.ProtectionDomain$2
178:            1       8       sun.misc.Unsafe
179:            1       8       java.util.Hashtable$EmptyIterator
180:            1       8       java.util.Collections$ReverseComparator
181:            1       8       java.net.URLClassLoader$7
182:            1       8       java.security.AccessControlContext$1
183:            1       8       java.lang.ref.Reference$Lock
184:            1       8       java.io.FileDescriptor$1
185:            1       8       sun.misc.Launcher$Factory
186:            1       8       java.lang.Terminator$1
187:            1       8       java.lang.Compiler$1
188:            1       8       java.util.Hashtable$EmptyEnumerator
189:            1       8       sun.jkernel.DownloadManager$2
190:            1       8       java.lang.Runtime
191:            1       8       java.nio.charset.Charset$3
192:            1       8       java.lang.String$CaseInsensitiveComparator
193:            1       8       java.util.Collections$EmptySet
194:            1       8       sun.reflect.ReflectionFactory
195:            1       8       sun.misc.ASCIICaseInsensitiveComparator
Total :         27128   2294784

Posted by 김용환 '김용환'

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