Java运行时崩溃致命错误【JAVA教程】

概述Java运行时崩溃致命错误

您好我正在运行的Java应用程序/实际上它是一个在embedded式linux框的testing。 经过一段时间的testing失败与崩溃

# # A Fatal error has been detected by the Java Runtime Environment: # # Internal Error (os_linux_zero.cpp:270),pID=2951,tID=1328632944 # Fatal error: caught unhandled signal 11 # # JRE version: 6.0_24-b24 # Java VM: OpenJDK Zero VM (20.0-b12 mixed mode linux-arm ) # Derivative: IcedTea6 1.12pre # distribution: Built for # If you would like to submit a BUG report,please include # instructions how to reproduce the BUG and visit: # http://icedtea.classpath.org/BUGzilla # ————— THREAD ————— Current thread (0x00073a40): VMThread [stack: 0x4f297000,0x4f316000] [ID=2953] Stack: [0x4f297000,0x4f316000],sp=0x4f314454,free space=501k VM_Operation (0x40ffb484): GenCollectForAllocation,mode: safepoint,requested by thread 0x0001db38 ————— PROCESS ————— Java Threads: ( => current thread ) 0x000418c0 JavaThread \”Thread-1\” daemon [_thread_in_native,ID=2990,stack(0x51a36000,0x51bb6000)] 0x000e6150 JavaThread \”Thread-0\” daemon [_thread_in_native,ID=2989,stack(0x518b6000,0x51a36000)] 0x0008c290 JavaThread \”Low Memory Detector\” daemon [_thread_blocked,ID=2960,stack(0x4f796000,0x4f916000)] 0x00089988 JavaThread \”Signal dispatcher\” daemon [_thread_blocked,ID=2959,stack(0x4f616000,0x4f796000)] 0x0007c288 JavaThread \”Finalizer\” daemon [_thread_blocked,ID=2958,stack(0x4f496000,0x4f616000)] 0x00077868 JavaThread \”Reference Handler\” daemon [_thread_blocked,ID=2957,stack(0x4f316000,0x4f496000)] 0x0001db38 JavaThread \”main\” [_thread_blocked,ID=2952,stack(0x40f3a000,0x410b9000)] Other Threads: =>0x00073a40 VMThread [stack: 0x4f297000,0x4f316000] [ID=2953] 0x0008df80 WatcherThread [stack: 0x4f917000,0x4f996000] [ID=2961] VM state:at safepoint (normal execution) VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event]) [0x0001cfb0] Threads_lock – owner thread: 0x00073a40 [0x0001d3c0] Heap_lock – owner thread: 0x0001db38 Heap def new generation total 4480K,used 4181K [0x43200000,0x436c0000,0x45c00000) eden space 4096K,99% used [0x43200000,0x435fffd0,0x43600000) from space 384K,22% used [0x43660000,0x436755f8,0x436c0000) to space 384K,100% used [0x43600000,0x43660000,0x43660000) tenured generation total 9572K,used 5980K [0x45c00000,0x46559000,0x4b000000) the space 9572K,62% used [0x45c00000,0x461d70e8,0x461d7200,0x46559000) compacting perm gen total 4352K,used 4258K [0x4b000000,0x4b440000,0x4f000000) the space 4352K,97% used [0x4b000000,0x4b4289c8,0x4b428a00,0x4b440000) No shared spaces configured. Code Cache [0x4117b000,0x411a3000,0x4317b000) total_blobs=80 nmethods=0 adapters=66 free_code_cache=33482752 largest_free_block=0 Dynamic librarIEs: 00008000-00011000 r-xp 00000000 1f:0b 4430 /usr/local/jvm/icedtea-openjdk-oe-core-jre/bin/java 00018000-00019000 rwxp 00008000 1f:0b 4430 /usr/local/jvm/icedtea-openjdk-oe-core-jre/bin/java 00019000-00898000 rwxp 00000000 00:00 0 [heap] 40000000-4001f000 r-xp 00000000 1f:0b 532 /lib/ld-2.11.1.so 4001f000-40022000 rwxp 00000000 00:00 0 40022000-40023000 —p 00000000 00:00 0 40023000-40024000 rwxp 00000000 00:00 0 40024000-40026000 r-xs 00013000 1f:0b 4451 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/jce.jar 40026000-40027000 r-xp 0001e000 1f:0b 532 /lib/ld-2.11.1.so 40027000-40028000 rwxp 0001f000 1f:0b 532 /lib/ld-2.11.1.so 40028000-4003d000 r-xp 00000000 1f:0b 566 /lib/libpthread-2.11.1.so 4003d000-40044000 —p 00015000 1f:0b 566 /lib/libpthread-2.11.1.so 40044000-40045000 r-xp 00014000 1f:0b 566 /lib/libpthread-2.11.1.so 40045000-40046000 rwxp 00015000 1f:0b 566 /lib/libpthread-2.11.1.so 40046000-40048000 rwxp 00000000 00:00 0 40048000-4004b000 r-xp 00000000 1f:0b 4502 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/jli/libjli.so 4004b000-40052000 —p 00003000 1f:0b 4502 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/jli/libjli.so 40052000-40053000 rwxp 00002000 1f:0b 4502 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/jli/libjli.so 40053000-40057000 r-xp 00000000 1f:0b 544 /lib/libdl-2.11.1.so 40057000-4005e000 —p 00004000 1f:0b 544 /lib/libdl-2.11.1.so 4005e000-4005f000 r-xp 00003000 1f:0b 544 /lib/libdl-2.11.1.so 4005f000-40060000 rwxp 00004000 1f:0b 544 /lib/libdl-2.11.1.so 40060000-4019b000 r-xp 00000000 1f:0b 538 /lib/libc-2.11.1.so 4019b000-401a2000 —p 0013b000 1f:0b 538 /lib/libc-2.11.1.so 401a2000-401a4000 r-xp 0013a000 1f:0b 538 /lib/libc-2.11.1.so 401a4000-401a5000 rwxp 0013c000 1f:0b 538 /lib/libc-2.11.1.so 401a5000-401a8000 rwxp 00000000 00:00 0 401a8000-401c7000 r-xp 00000000 1f:0b 3153 /usr/lib/libz.so.1.2.3 401c7000-401ce000 —p 0001f000 1f:0b 3153 /usr/lib/libz.so.1.2.3 401ce000-401cf000 rwxp 0001e000 1f:0b 3153 /usr/lib/libz.so.1.2.3 401cf000-401da000 r-xp 00000000 1f:0b 547 /lib/libgcc_s.so.1 401da000-401e1000 —p 0000b000 1f:0b 547 /lib/libgcc_s.so.1 401e1000-401e2000 rwxp 0000a000 1f:0b 547 /lib/libgcc_s.so.1 401e2000-40555000 r-xp 00000000 1f:0b 4504 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/server/libjvm.so 40555000-4055d000 —p 00373000 1f:0b 4504 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/server/libjvm.so 4055d000-4057a000 rwxp 00373000 1f:0b 4504 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/server/libjvm.so 4057a000-405d4000 rwxp 00000000 00:00 0 405d4000-4069b000 r-xp 00000000 1f:0b 575 /lib/libstdc++.so.6.0.12 4069b000-406a3000 —p 000c7000 1f:0b 575 /lib/libstdc++.so.6.0.12 406a3000-406a6000 r-xp 000c7000 1f:0b 575 /lib/libstdc++.so.6.0.12 406a6000-406a8000 rwxp 000ca000 1f:0b 575 /lib/libstdc++.so.6.0.12 406a8000-406ae000 rwxp 00000000 00:00 0 406ae000-40722000 r-xp 00000000 1f:0b 548 /lib/libm-2.11.1.so 40722000-40729000 —p 00074000 1f:0b 548 /lib/libm-2.11.1.so 40729000-4072a000 r-xp 00073000 1f:0b 548 /lib/libm-2.11.1.so 4072a000-4072b000 rwxp 00074000 1f:0b 548 /lib/libm-2.11.1.so 4072b000-40730000 r-xp 00000000 1f:0b 3056 /usr/lib/libffi.so.5 40730000-40738000 —p 00005000 1f:0b 3056 /usr/lib/libffi.so.5 40738000-40739000 rwxp 00005000 1f:0b 3056 /usr/lib/libffi.so.5 40739000-40f39000 rwxp 00000000 00:00 0 40f39000-40f3d000 —p 00000000 00:00 0 40f3d000-410b9000 rwxp 00000000 00:00 0 410b9000-410c0000 r-xp 00000000 1f:0b 572 /lib/librt-2.11.1.so 410c0000-410c7000 —p 00007000 1f:0b 572 /lib/librt-2.11.1.so 410c7000-410c8000 r-xp 00006000 1f:0b 572 /lib/librt-2.11.1.so 410c8000-410c9000 rwxp 00007000 1f:0b 572 /lib/librt-2.11.1.so 410c9000-410d2000 r-xp 00000000 1f:0b 4496 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/libverify.so 410d2000-410da000 —p 00009000 1f:0b 4496 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/libverify.so 410da000-410db000 rwxp 00009000 1f:0b 4496 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/libverify.so 410db000-41101000 r-xp 00000000 1f:0b 4481 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/libjava.so 41101000-41109000 —p 00026000 1f:0b 4481 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/libjava.so 41109000-4110b000 rwxp 00026000 1f:0b 4481 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/libjava.so 4110b000-41113000 r-xp 00000000 1f:0b 553 /lib/libnss_compat-2.11.1.so 41113000-4111a000 —p 00008000 1f:0b 553 /lib/libnss_compat-2.11.1.so 4111a000-4111b000 r-xp 00007000 1f:0b 553 /lib/libnss_compat-2.11.1.so 4111b000-4111c000 rwxp 00008000 1f:0b 553 /lib/libnss_compat-2.11.1.so 4111c000-41131000 r-xp 00000000 1f:0b 551 /lib/libnsl-2.11.1.so 41131000-41138000 —p 00015000 1f:0b 551 /lib/libnsl-2.11.1.so 41138000-41139000 r-xp 00014000 1f:0b 551 /lib/libnsl-2.11.1.so 41139000-4113a000 rwxp 00015000 1f:0b 551 /lib/libnsl-2.11.1.so 4113a000-4113c000 rwxp 00000000 00:00 0 4113c000-41147000 r-xp 00000000 1f:0b 561 /lib/libnss_nis-2.11.1.so 41147000-4114e000 —p 0000b000 1f:0b 561 /lib/libnss_nis-2.11.1.so 4114e000-4114f000 r-xp 0000a000 1f:0b 561 /lib/libnss_nis-2.11.1.so 4114f000-41150000 rwxp 0000b000 1f:0b 561 /lib/libnss_nis-2.11.1.so 41150000-4115c000 r-xp 00000000 1f:0b 557 /lib/libnss_files-2.11.1.so 4115c000-41163000 —p 0000c000 1f:0b 557 /lib/libnss_files-2.11.1.so 41163000-41164000 r-xp 0000b000 1f:0b 557 /lib/libnss_files-2.11.1.so 41164000-41165000 rwxp 0000c000 1f:0b 557 /lib/libnss_files-2.11.1.so 41165000-4116d000 rwxs 00000000 00:11 6173 /tmp/hsperfdata_root/2951 4116d000-41173000 r-xp 00000000 1f:0b 4497 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/libzip.so 41173000-4117a000 —p 00006000 1f:0b 4497 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/libzip.so 4117a000-4117b000 rwxp 00005000 1f:0b 4497 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/libzip.so 4117b000-411a3000 rwxp 00000000 00:00 0 411a3000-4317b000 rwxp 00000000 00:00 0 4317b000-4317c000 rwxp 00000000 00:00 0 4317c000-431fb000 rwxp 00000000 00:00 0 431fb000-431fe000 r-xs 0007d000 1f:0b 4453 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/Jsse.jar 431fe000-43200000 r-xs 0009a000 1f:0d 2388 /mnt/platform/javaTest.jar 43200000-436c0000 rwxp 00000000 00:00 0 436c0000-45c00000 rwxp 00000000 00:00 0 45c00000-46559000 rwxp 00000000 00:00 0 46559000-4b000000 rwxp 00000000 00:00 0 4b000000-4b440000 rwxp 00000000 00:00 0 4b440000-4f000000 rwxp 00000000 00:00 0 4f000000-4f003000 rwxp 00000000 00:00 0 4f003000-4f015000 rwxp 00000000 00:00 0 4f015000-4f01a000 rwxp 00000000 00:00 0 4f01a000-4f03f000 rwxp 00000000 00:00 0 4f03f000-4f042000 rwxp 00000000 00:00 0 4f042000-4f05f000 rwxp 00000000 00:00 0 4f05f000-4f065000 rwxp 00000000 00:00 0 4f065000-4f08b000 rwxp 00000000 00:00 0 4f08b000-4f08e000 rwxp 00000000 00:00 0 4f08e000-4f0ac000 rwxp 00000000 00:00 0 4f0ac000-4f0b3000 r-xs 000fb000 1f:0b 4462 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/resources.jar 4f0b3000-4f253000 r-xs 019cd000 1f:0b 4463 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/rt.jar 4f253000-4f288000 rwxp 00000000 00:00 0 4f288000-4f296000 r-xs 00351000 1f:0b 4434 /usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/charsets.jar 4f296000-4f297000 —p 00000000 00:00 0 4f297000-4f316000 rwxp 00000000 00:00 0 [threadstack:0007dfa8] 4f316000-4f319000 —p 00000000 00:00 0 4f319000-4f496000 rwxp 00000000 00:00 0 4f496000-4f499000 —p 00000000 00:00 0 4f499000-4f616000 rwxp 00000000 00:00 0 4f616000-4f619000 —p 00000000 00:00 0 4f619000-4f796000 rwxp 00000000 00:00 0 4f796000-4f799000 —p 00000000 00:00 0 4f799000-4f916000 rwxp 00000000 00:00 0 4f916000-4f917000 —p 00000000 00:00 0 4f917000-4f996000 rwxp 00000000 00:00 0 4f996000-4f998000 r-xs 0009a000 1f:0d 2388 /mnt/platform/javaTest.jar 4f998000-4f99f000 r-xs 0007d000 1f:0d 2389 /mnt/platform/lib/Symbol.RFID.API3.jar 4f99f000-4f9b4000 r-xp 00000000 1f:0d 1692 /mnt/platform/lib/librfIDAPI32jni.so 4f9b4000-4f9bc000 —p 00015000 1f:0d 1692 /mnt/platform/lib/librfIDAPI32jni.so 4f9bc000-4f9bd000 rwxp 00015000 1f:0d 1692 /mnt/platform/lib/librfIDAPI32jni.so 4f9bd000-4fa54000 r-xp 00000000 1f:0d 1693 /mnt/platform/lib/librfIDAPI32.so 4fa54000-4fa5c000 —p 00097000 1f:0d 1693 /mnt/platform/lib/librfIDAPI32.so 4fa5c000-4fa5f000 rwxp 00097000 1f:0d 1693 /mnt/platform/lib/librfIDAPI32.so 4fa5f000-4fa60000 rwxp 00000000 00:00 0 4fa60000-4fb84000 r-xp 00000000 1f:0b 3149 /usr/lib/libxml2.so.2.7.8 4fb84000-4fb8c000 —p 00124000 1f:0b 3149 /usr/lib/libxml2.so.2.7.8 4fb8c000-4fb91000 rwxp 00124000 1f:0b 3149 /usr/lib/libxml2.so.2.7.8 4fb91000-4fb92000 rwxp 00000000 00:00 0 4fb92000-4fca0000 r-xp 00000000 1f:0d 1685 /mnt/platform/lib/libltk.so 4fca0000-4fca8000 —p 0010e000 1f:0d 1685 /mnt/platform/lib/libltk.so 4fca8000-4fcb4000 rwxp 0010e000 1f:0d 1685 /mnt/platform/lib/libltk.so 4fcb4000-4fcd6000 r-xp 00000000 1f:0b 3128 /usr/lib/libssh2.so.1.0.1 4fcd6000-4fcde000 —p 00022000 1f:0b 3128 /usr/lib/libssh2.so.1.0.1 4fcde000-4fcdf000 rwxp 00022000 1f:0b 3128 /usr/lib/libssh2.so.1.0.1 4fcdf000-4fd32000 r-xp 00000000 1f:0b 3132 /usr/lib/libssl.so.1.0.0 4fd32000-4fd3a000 —p 00053000 1f:0b 3132 /usr/lib/libssl.so.1.0.0 4fd3a000-4fd3f000 rwxp 00053000 1f:0b 3132 /usr/lib/libssl.so.1.0.0 4fd3f000-4fd93000 r-xp 00000000 1f:0b 3048 /usr/lib/libcurl.so.4.3.0 4fd93000-4fd9b000 —p 00054000 1f:0b 3048 /usr/lib/libcurl.so.4.3.0 4fd9b000-4fd9d000 rwxp 00054000 1f:0b 3048 /usr/lib/libcurl.so.4.3.0 4fd9d000-4ff94000 r-xp 00000000 1f:0b 3044 /usr/lib/libcrypto.so.1.0.0 4ff94000-4ff9b000 —p 001f7000 1f:0b 3044 /usr/lib/libcrypto.so.1.0.0 4ff9b000-4ffb1000 rwxp 001f6000 1f:0b 3044 /usr/lib/libcrypto.so.1.0.0 4ffb1000-500b6000 rwxp 00000000 00:00 0 500b6000-500b7000 —p 00000000 00:00 0 500b7000-508b6000 rwxp 00000000 00:00 0 508b6000-508b7000 —p 00000000 00:00 0 508b7000-510b6000 rwxp 00000000 00:00 0 510b6000-510b7000 —p 00000000 00:00 0 510b7000-518b6000 rwxp 00000000 00:00 0 518b6000-518b9000 —p 00000000 00:00 0 518b9000-51a36000 rwxp 00000000 00:00 0 51a36000-51a39000 —p 00000000 00:00 0 51a39000-51bb6000 rwxp 00000000 00:00 0 51c00000-51d21000 rwxp 00000000 00:00 0 51d21000-51e00000 —p 00000000 00:00 0 beede000-bef11000 rw-p 00000000 00:00 0 [stack] VM Arguments: java_command: javaTest.jar Launcher Type: SUN_STANDARD Environment Variables: JAVA_HOME=/usr/local/jvm/icedtea-openjdk-oe-core-jre CLAsspATH=/platform/lib/Symbol.RFID.API3.jar PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/jvm/icedtea-openjdk-oe-core-jre/bin LD_liBRARY_PATH=/usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm/server:/usr/local/jvm/icedtea-openjdk-oe-core-jre/lib/arm:/usr/local/jvm/icedtea-openjdk-oe-core-jre/../lib/arm:/platform/lib/ SHELL=/bin/bash Signal Handlers: SIGSEGV: [libjvm.so+0x31ecfc],sa_mask[0]=0x7ffbfeff,sa_flags=0x10000004 SIGBUS: [libjvm.so+0x31ecfc],sa_flags=0x10000004 SIGFPE: [libjvm.so+0x2718c8],sa_flags=0x10000004 SIGPIPE: [libjvm.so+0x2718c8],sa_flags=0x10000004 SIGXFSZ: [libjvm.so+0x2718c8],sa_flags=0x10000004 SIGILL: [libjvm.so+0x2718c8],sa_flags=0x10000004 SIGUSR1: SIG_DFL,sa_mask[0]=0x00000000,sa_flags=0x00000000 SIGUSR2: [libjvm.so+0x271a78],sa_flags=0x10000004 SIGHUP: [libjvm.so+0x274094],sa_flags=0x10000004 SIGINT: [libjvm.so+0x274094],sa_flags=0x10000004 SIGTERM: [libjvm.so+0x274094],sa_flags=0x10000004 SIGQUIT: [libjvm.so+0x274094],sa_flags=0x10000004 ————— SYstem ————— OS:linux uname:linux 2.6.32.8 #160 PREEMPT Wed Nov 20 09:35:38 EST 2013 armv7l libc:glibc 2.11.1 NPTL 2.11.1 rlimit: STACK 8192k,CORE 2048k,NPROC 1991,NOfile 1024,AS infinity load average:4.10 3.66 3.59 /proc/meminfo: MemTotal: 255080 kB MemFree: 101392 kB Buffers: 0 kB Cached: 73876 kB SwapCached: 0 kB Active: 96644 kB Inactive: 42048 kB Active(anon): 67736 kB Inactive(anon): 0 kB Active(file): 28908 kB Inactive(file): 42048 kB Unevictable: 0 kB mlocked: 0 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 64836 kB Mapped: 20092 kB Shmem: 2920 kB Slab: 9524 kB SReclaimable: 2328 kB SUnreclaim: 7196 kB KernelStack: 1496 kB Pagetables: 1312 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB Commitlimit: 127540 kB Committed_AS: 1096640 kB VmallocTotal: 647168 kB VmallocUsed: 628 kB VmallocChunk: 645884 kB cpu:total 1 Memory: 4k page,physical 255080k(101392k free),swap 0k(0k free) vm_info: OpenJDK Zero VM (20.0-b12) for linux-arm JRE (1.6.0_24-b24),built on Jul 24 2012 19:26:05 by \”mvdev\” with gcc 4.7.2 20120706 (prerelease) time: Wed Nov 20 17:51:51 2013 elapsed time: 11574 seconds

如何找出问题的根源？ 我看到一个“core-java-2951-1384969911”文件被创build，大约有2MB的核心转储。 我真的需要deBUGging核心转储吗？ 如果是的话，我该怎么做？

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由于核心转储只是正在运行的进程数据的原始转储，我要做的一件事就是将其转换为堆转储。 要做到这一点，你可以使用jmap：

jmap -heap:format=b <java-executable> <core-file>

根据核心文件的大小，现在可能是获得饮料，去吃午饭或甚至赶上你的电影的好时机。 （我已经看到这个命令从20分钟到一个半小时）。确保参数指向实际创建核心转储的Java可执行文件。 确保从同一版本的java运行jmap命令可能也是最安全的。 （jmap是相当古老的，早在java 1.4.2中就提供了jdk）。

一旦这个命令完成，你应该有一个heap.bin文件，可以用jhat工具浏览。 （他们应该可以用更新的JVisualVM工具查看，但由于某种原因，这个工具在加载这些文件时似乎失败了。）这个工具不像jmap（jhat在1.6版本的JDK版本中开始出货）那么古老，但是因为我们现在有一个堆文件，而不是一个原始的核心转储，我们可以使用与新的JDK分发的jhat。 既然你是在Java 6上，你会没事的：

jhat -J-Xmx1024M heap.bin

同样，根据堆文件的大小，这个命令可能需要很多时间和内存。 你可能不得不提出“1024”的说法。 您甚至可能需要在服务器（而不是本地计算机）上运行它，以便解决Java对windows强加的2GB堆的限制。 有时从核心产生的堆文件导致jhat产生大量的错误，所以你可能想要将标准输出重定向到一个文件。 最终，jhat进程将完成读取文件并开始在端口7000上进行侦听。然后，您可以将Web浏览器指向正在运行的计算机（不要忘记将“：7000”添加到主机名）并开始浏览在JVM崩溃时堆上的对象。

更新：也许参数已经改变，因为我上次运行的JMap工具。 我只是试着再次运行它，似乎我不得不使用：

jmap -dump:live,format=b,file=heap.bin <java-executable> <core-file>

如果一个命令不适合你，你可能想尝试另一个命令。

总结

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