正常不用断点模式没问题， 断点模式不跟的太慢也没问题，只要慢慢跟代码， 就可能出问题。 也不是每次都出。 一天 四五次。
报错内容如下。
Unhandled exception
Type=Segmentation error vmState=0x00000000
Windows_ExceptionCode=c0000005 J9Generic_Signal=00000004 ExceptionAddress=00007FFE8CCF5F6C ContextFlags=0010005f
Handler1=00007FFE8CD32840 Handler2=00007FFE94ADEFF0 InaccessibleReadAddress=000000000000000E
RDI=000000451C9FF530 RSI=000000451C9FF528 RAX=0000000000159B48 RBX=000000451C9FF558
RCX=0000000000159D00 RDX=00000000001590E0 R8=0000000000000001 R9=00000000000F4240
R10=00000000546C6148 R11=000001D66A9019B0 R12=000000451C9FF528 R13=00000000015E2F88
R14=00000000EA81A1A8 R15=000000451C9FF538
RIP=00007FFE8CCF5F6C RSP=000000451C9FF050 RBP=000000000000000E GS=002B
FS=0053 ES=002B DS=002B
XMM0 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM1 43e0000000000000 (f: 0.000000, d: 9.223372e+018)
XMM2 43f0000000000000 (f: 0.000000, d: 1.844674e+019)
XMM3 412e848000000000 (f: 0.000000, d: 1.000000e+006)
XMM4 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM5 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM6 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM7 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM8 0000000040800000 (f: 1082130432.000000, d: 5.346435e-315)
XMM9 0000000040800000 (f: 1082130432.000000, d: 5.346435e-315)
XMM10 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM11 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM12 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM13 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM14 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM15 0000000000000000 (f: 0.000000, d: 0.000000e+000)
Module=C:\Users\wtf\.jdks\adopt-openj9-1.8.0_282\jre\bin\compressedrefs\j9vm29.dll
Module_base_address=00007FFE8CCB0000 Offset_in_DLL=0000000000045f6c
Target=2_90_20210120_972 (Windows 8.1 6.3 build 9600)
CPU=amd64 (6 logical CPUs) (0x3f1e4a000 RAM)
----------- Stack Backtrace -----------
(0x00007FFE8CCF5F6C [j9vm29+0x45f6c])
(0x00000000000000FF)
(0x000000451C9FF530)
---------------------------------------
JVMDUMP039I 正在处理转储事件“gpf”，详细信息“”，位于 2021/04/07 16:17:08 - 请稍候。
JVMDUMP032I JVM 使用“D:\worktools\tomcat\taobao-tomcat-7.0.75.1\bin\core.20210407.161708.15472.0001.dmp”来请求 System 转储以响应事件
JVMDUMP010I System 转储已写入 D:\worktools\tomcat\taobao-tomcat-7.0.75.1\bin\core.20210407.161708.15472.0001.dmp
JVMDUMP032I JVM 使用“D:\worktools\tomcat\taobao-tomcat-7.0.75.1\bin\javacore.20210407.161708.15472.0002.txt”来请求 Java 转储以响应事件
JVMDUMP010I Java 转储已写入 D:\worktools\tomcat\taobao-tomcat-7.0.75.1\bin\javacore.20210407.161708.15472.0002.txt
JVMDUMP032I JVM 使用“D:\worktools\tomcat\taobao-tomcat-7.0.75.1\bin\Snap.20210407.161708.15472.0003.trc”来请求 Snap 转储以响应事件
JVMDUMP010I Snap 转储已写入 D:\worktools\tomcat\taobao-tomcat-7.0.75.1\bin\Snap.20210407.161708.15472.0003.trc
JVMDUMP032I JVM 使用“D:\worktools\tomcat\taobao-tomcat-7.0.75.1\bin\jitdump.20210407.161708.15472.0004.dmp”来请求 JIT 转储以响应事件
Unhandled exception
Type=Segmentation error vmState=0x00040000
Windows_ExceptionCode=c0000005 J9Generic_Signal=00000004 ExceptionAddress=00007FFE8CD6356C ContextFlags=0010005f
Handler1=00007FFE8CD32840 Handler2=00007FFE94ADEFF0 InaccessibleReadAddress=0000000000000010
RDI=0000000000000000 RSI=0000000001502800 RAX=0000000000000010 RBX=000000451C4FECB0
RCX=000001D66A9019B0 RDX=00000000149C0100 R8=000001D66A9019B0 R9=00000000001590E4
R10=000001D67EA20CF0 R11=0000000000000000 R12=00007FFE8CCB0000 R13=00000000000000A2
R14=0000000000000000 R15=0000000000000000
RIP=00007FFE8CD6356C RSP=000000451C4FEC10 RBP=00000000141C0100 GS=002B
FS=0053 ES=002B DS=002B
XMM0 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM1 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM2 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM3 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM4 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM5 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM6 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM7 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM8 3eb0c6f7a0b5ed8d (f: 2696277504.000000, d: 1.000000e-006)
XMM9 3ff0000000000000 (f: 0.000000, d: 1.000000e+000)
XMM10 0000000041040000 (f: 1090781184.000000, d: 5.389175e-315)
XMM11 0000000041040000 (f: 1090781184.000000, d: 5.389175e-315)
XMM12 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM13 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM14 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM15 0000000000000000 (f: 0.000000, d: 0.000000e+000)
Module=C:\Users\wtf\.jdks\adopt-openj9-1.8.0_282\jre\bin\compressedrefs\j9vm29.dll
Module_base_address=00007FFE8CCB0000 Offset_in_DLL=00000000000b356c
Target=2_90_20210120_972 (Windows 8.1 6.3 build 9600)
CPU=amd64 (6 logical CPUs) (0x3f1e4a000 RAM)
----------- Stack Backtrace -----------
J9_GetInterface+0x24b4c (0x00007FFE8CD6356C [j9vm29+0xb356c])
J9_GetInterface+0x24ed6 (0x00007FFE8CD638F6 [j9vm29+0xb38f6])
Java_com_ibm_lang_management_internal_JvmCpuMonitor_getThreadCategoryImpl+0x10ad (0x00007FFE8F39DFBD [jclse29+0x1dfbd])
Java_com_ibm_lang_management_internal_JvmCpuMonitor_getThreadCategoryImpl+0xe74 (0x00007FFE8F39DD84 [jclse29+0x1dd84])
Java_com_ibm_lang_management_internal_JvmCpuMonitor_getThreadCategoryImpl+0xb8b (0x00007FFE8F39DA9B [jclse29+0x1da9b])
Java_com_ibm_java_lang_management_internal_ThreadMXBeanImpl_getMultiThreadInfoImpl+0x111 (0x00007FFE8F39C701 [jclse29+0x1c701])
J9_GetInterface+0x93523 (0x00007FFE8CDD1F43 [j9vm29+0x121f43])
J9_GetInterface+0x92f89 (0x00007FFE8CDD19A9 [j9vm29+0x1219a9])
(0x00007FFE8CCE4A7B [j9vm29+0x34a7b])
(0x0000000000000001)
(0x000000451C4FF5F0)
(0x000001D67E16ECF8)
(0x000000451C4FF5F8)
(0x000000451C4FF1B0)
(0x00007FFE00000016)
(0x0000000000013F02)
(0x000000451C4FF5E8)
(0x000000451C4FF5F0)
(0x000000451C4FF600)
(0x000000451C4FF5F8)
(0x0000004501000102)
(0x0000004500000000)
Java_com_ibm_java_lang_management_internal_ThreadMXBeanImpl_findDeadlockedThreadsImpl+0xf (0x00007FFE8F39C5EF [jclse29+0x1c5ef])
---------------------------------------
JVMDUMP039I 正在处理转储事件“gpf”，详细信息“”，位于 2021/04/07 16:18:20 - 请稍候。
