Native registration unable to find class 'com/android/server/Watchdog'问题
今天编译完android4.0系统之后，烧写进去，启动一直停留在“android”字样，查看logcat，信息如下：
adb logcat
--------- beginning of /dev/log/systemI/Vold ( 1028): Vold 2.1 (the revenge) firing up
D/Vold ( 1028): Volume sdcard state changing -1 (Initializing) -> 0 (No-Media)
D/Vold ( 1028): Volume sdcard state changing 0 (No-Media) -> 2 (Pending)
D/Vold ( 1028): Volume sdcard state changing 2 (Pending) -> 1 (Idle-Unmounted)
--------- beginning of /dev/log/main
I/DEBUG ( 1033): 400d8670 f04f2006 94015380 94029303 ebc8f7f5 . O..S..........
I/DEBUG ( 1033): 400d8680 4622a905 f7f52002 f7f4ebd2 2106ef5c .."F. ......\..!
I/DEBUG ( 1033):
I/DEBUG ( 1033): code around lr:
I/DEBUG ( 1033): 400dbee0 41f0e92d 46804c0c 447c2600 68a56824 -..A.L.F.&|D$h.h
I/DEBUG ( 1033): 400dbef0 e0076867 300cf9b5 dd022b00 47c04628 gh.....0.+..(F.G
I/DEBUG ( 1033): 400dbf00 35544306 37fff117 6824d5f4 d1ee2c00 .CT5...7..$h.,..
I/DEBUG ( 1033): 400dbf10 e8bd4630 bf0081f0 000285fa 41f0e92d 0F..........-..A
I/DEBUG ( 1033): 400dbf20 fb01b086 9004f602 461f4815 4615460c .........H.F.F.F
I/DEBUG ( 1033):
I/DEBUG ( 1033): memory map around addr deadbaad:
I/DEBUG ( 1033): bee7d000-bee9e000 [stack]
I/DEBUG ( 1033): (no map for address)
I/DEBUG ( 1033): ffff0000-ffff1000 [vectors]
I/DEBUG ( 1033):
I/DEBUG ( 1033): stack:
I/DEBUG ( 1033): bee9da50 01a2a830 [heap]
I/DEBUG ( 1033): bee9da54 577d682c /data/dalvik-cache/system@[email protected]@classes.dex
I/DEBUG ( 1033): bee9da58 40b603e8 /dev/ashmem/dalvik-heap (deleted)
I/DEBUG ( 1033): bee9da5c bee9da94 [stack]
I/DEBUG ( 1033): bee9da60 40104720 /system/lib/libc.so
I/DEBUG ( 1033): bee9da64 401046b0 /system/lib/libc.so
I/DEBUG ( 1033): bee9da68 00000000
I/DEBUG ( 1033): bee9da6c 400dbf01 /system/lib/libc.so
I/DEBUG ( 1033): bee9da70 00000000
I/DEBUG ( 1033): bee9da74 bee9daa4 [stack]
I/DEBUG ( 1033): bee9da78 01a272c8 [heap]
I/DEBUG ( 1033): bee9da7c 00000001
I/DEBUG ( 1033): bee9da80 40255678 /system/lib/libandroid_runtime.so
I/DEBUG ( 1033): bee9da84 400db06d /system/lib/libc.so
I/DEBUG ( 1033): bee9da88 df0027ad
I/DEBUG ( 1033): bee9da8c 00000000
I/DEBUG ( 1033): #00 bee9da90 409bfcca /system/lib/libdvm.so
I/DEBUG ( 1033): bee9da94 577d682c /data/dalvik-cache/system@[email protected]@classes.dex
I/DEBUG ( 1033): bee9da98 409c0df6 /system/lib/libdvm.so
I/DEBUG ( 1033): bee9da9c 01a272c8 [heap]
I/DEBUG ( 1033): bee9daa0 4024f0a1 /system/lib/libandroid_runtime.so
I/DEBUG ( 1033): bee9daa4 fffffbdf
I/DEBUG ( 1033): bee9daa8 00000001
I/DEBUG ( 1033): bee9daac 01a272c8 [heap]
I/DEBUG ( 1033): bee9dab0 4024f0a1 /system/lib/libandroid_runtime.so
I/DEBUG ( 1033): bee9dab4 4006e285 /system/lib/libnativehelper.so
I/DEBUG ( 1033): #01 bee9dab8 01a272c8 [heap]
I/DEBUG ( 1033): bee9dabc 00000000
I/DEBUG ( 1033): bee9dac0 40255974 /system/lib/libandroid_runtime.so
I/DEBUG ( 1033): bee9dac4 402559d8 /system/lib/libandroid_runtime.so
I/DEBUG ( 1033): bee9dac8 01a272c8 [heap]
I/DEBUG ( 1033): bee9dacc bee9dbc4 [stack]
I/DEBUG ( 1033): bee9dad0 0000907e /system/bin/app_process
I/DEBUG ( 1033): bee9dad4 401fe553 /system/lib/libandroid_runtime.so
I/ServiceManager( 1027): service 'media.audio_flinger' died
I/ServiceManager( 1027): service 'media.player' died
I/ServiceManager( 1027): service 'media.camera' died
I/ServiceManager( 1027): service 'media.audio_policy' died
I/Netd ( 4795): Netd 1.0 starting
I/ ( 4794): ServiceManager: 0x16e5958
E/AudioHardware( 4794): Can't load libsecril-client.so
I/AudioFlinger( 4794): Loaded primary audio interface from LEGACY Audio HW HAL (audio)
I/AudioFlinger( 4794): Using 'LEGACY Audio HW HAL' (audio.primary) as the primary audio interface
I/AudioFlinger( 4794): Loaded a2dp audio interface from A2DP Audio HW HAL (audio)
D/AudioHardwareInterface( 4794): setMode(NORMAL)
E/AudioHardware( 4794): setMode mode=0 !!!!
I/CameraService( 4794): CameraService started (pid=4794)
V/CameraHardwareSec( 4794): int android::HAL_getNumberOfCameras()
E/AudioHardware( 4794): Opening outPutStream !!!!
I/AudioFlinger( 4794): AudioFlinger's thread 0x16e65a0 ready to run
W/AudioFlinger( 4794): Thread AudioOut_1 cannot connect to the power manager service
D/AudioHardware( 4794): AudioStreamOutALSA::setParameters() routing=2
E/AudioHardware( 4794): write_to_sub buff[0]=1
D/AudioHardware( 4794): ### setVoiceVolume_l
I/AudioPolicyService( 4794): Loaded audio policy from LEGACY Audio Policy HAL (audio_policy)
D/AndroidRuntime( 4822):
D/AndroidRuntime( 4822): >>>>>> AndroidRuntime START com.android.internal.os.ZygoteInit <<<<<<
D/AndroidRuntime( 4822): CheckJNI is ON
D/dalvikvm( 4822): DexOpt: incorrect opt magic number (0xff ff ff ff)
D/dalvikvm( 4822): ODEX file is stale or bad; removing and retrying (/data/dalvik-cache/system@[email protected]@classes.dex)
W/dalvikvm( 4822): Zip: inflate zerr=-3 (nIn=0x153b66b aIn=1229 nOut=0x153c4d4 aOut=30316)
E/dalvikvm( 4822): Unable to extract+optimize DEX from '/system/framework/services.jar'
D/dalvikvm( 4822): Unable to process classpath element '/system/framework/services.jar'
E/JNIHelp ( 4822): Native registration unable to find class 'com/android/server/Watchdog', aborting
F/libc ( 4822): Fatal signal 11 (SIGSEGV) at 0xdeadbaad (code=1)
I/DEBUG ( 1033): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG ( 1033): Build fingerprint: 'Android/full_smdkv210/smdkv210:4.0.3/IML77/eng.hm.20140117.094917:eng/test-keys'
I/DEBUG ( 1033): pid: 4822, tid: 4822 >>> zygote <<<
I/DEBUG ( 1033): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr deadbaad
I/DEBUG ( 1033): r0 deadbaad r1 00000001 r2 a0000000 r3 00000000
I/DEBUG ( 1033): r4 00000000 r5 00000027 r6 014de2c8 r7 00000001
I/DEBUG ( 1033): r8 4020d678 r9 401f3cc6 10 0000904c fp 00009062
I/DEBUG ( 1033): ip ffffffff sp becdfa90 lr 400f1f01 pc 400ee660 cpsr 60000030
I/DEBUG ( 1033): d0 74726f6261202c27 d1 7265767265732f64
I/DEBUG ( 1033): d2 56e1c20856e1c173 d3 56e1c27856e1c273
I/DEBUG ( 1033): d4 56eb82e856eb82b0 d5 56eb835856eb8320
I/DEBUG ( 1033): d6 56eb83c856eb8390 d7 56eb843856eb8400
I/DEBUG ( 1033): d8 0000000000000000 d9 0000000000000000
I/DEBUG ( 1033): d10 0000000000000000 d11 0000000000000000
I/DEBUG ( 1033): d12 0000000000000000 d13 0000000000000000
I/DEBUG ( 1033): d14 0000000000000000 d15 0000000000000000
I/DEBUG ( 1033): d16 0000000040b7f608 d17 0000000000000000
I/DEBUG ( 1033): d18 41ba2bb76e000000 d19 0000000000000000
I/DEBUG ( 1033): d20 0000000000000000 d21 0000000000000000
I/DEBUG ( 1033): d22 0000000000000000 d23 0000000000000000
I/DEBUG ( 1033): d24 0000000000000000 d25 0000000000000000
I/DEBUG ( 1033): d26 0000000000000000 d27 0000000000000000
I/DEBUG ( 1033): d28 0000000000000000 d29 0000000000000000
I/DEBUG ( 1033): d30 0000000000000000 d31 0000000000000000
I/DEBUG ( 1033): scr 60000010
I/DEBUG ( 1033):
I/DEBUG ( 1033): #00 pc 00017660 /system/lib/libc.so
I/DEBUG ( 1033): #01 pc 0000c282 /system/lib/libnativehelper.so (jniRegisterNativeMethods)
I/DEBUG ( 1033): #02 pc 00046550 /system/lib/libandroid_runtime.so (_ZN7android14AndroidRuntime21registerNativeMethodsEP7_JNIEnvPKcPK15JNINativeMethodi)
I/DEBUG ( 1033): #03 pc 0007e41c /system/lib/libandroid_runtime.so (_ZN7android32register_android_server_WatchdogEP7_JNIEnv)
I/DEBUG ( 1033): #04 pc 0004665c /system/lib/libandroid_runtime.so
I/DEBUG ( 1033): #05 pc 0004668e /system/lib/libandroid_runtime.so (_ZN7android14AndroidRuntime8startRegEP7_JNIEnv)
I/DEBUG ( 1033): #06 pc 00046784 /system/lib/libandroid_runtime.so (_ZN7android14AndroidRuntime5startEPKcS2_)
刚开始认为是找不到“com/android/server/WatchDog”这个文件造成的，结果是因为services.jar这个jar包的问题，重新push这个/system/framework/services.jar到/system/framework/目录下即可，重启启动就可以正常启动机器了。
之前编译完的系统都是可以正常启动的，不知道是不是编译完，打包的时候出了问题，有待考证。
这种解决方法还是不能解决根本问题，打包好的img烧进去还是起不来，说什么不能从.jar文件解压DEX，这个原因是因为在打包.img文件时出错了，我最后删掉/system/app/下面几个没用apk，再重新打包烧进去就可以正常启动了。