openjdk版本
openjdkversion '1.8.0_ 161 ' openjdkruntimeenvironment (build1.8.0_ 161-b14 ) openJDK64-bitserverVM ) build24
jmap-heap 17694 attachingtoprocessid 17694、 please wait . debuggerattachedsuccessfully.servercompilerdetected.jvmversionis 25.161-b14 usingparallelthreadsinthenenewgenegened concurrent mark-sweepgcheapconfiguration 3360 minheapfreeratio=40 maxheapfreeratio=70 maxheapsiion MB ) new size=1570308096 newratio=2survivor ratio=8metaspacesize=21807104 (20.796875 MB ) compressedclasspacesize=1073741824 ) 1024.0MB ) onsize=0(0.0MB ) heap usage 3360 exceptioninthread ' main ' Java.lang.reflect.invocationtargetexceptionatsun.reflect.nativemethodacccccessssessssse or impl.invoke (nativemethodaccessorimpl.Java 336062 ) )。 at sun.reflect.delegatingmethodaccessorimpl.invoke (delegatingmethodaccessorimpl.Java :43 ) at Java.lang.reflect :201 ) at sun.tools.jmap.jmap.main (jmap.Java 3360130 ) )。 caused by : Java.lang.runtime exception : unknowncollectedheaptype : classun.JVM.hotspot.GC _ interface.collllected 3360144 ) at sun.JVM.hotspot.tools.tool.start internal ) tool.Java 336020 at sun.JVM.hotspot.tools.tool.start cute (tool.JVM.hotspot.to ools.toool.execute at sun.JVM.hotspot.tools.heap summary.main )
我从yum酱里找不到这个包，所以我自己找了
3358 debug info.centos.org/6/x86 _ 64/Java-1.8.0-open JDK-debug info-1.8.0.161-3.b14.el6 _ 9
或者从下面的网站找
3358在服务器本地下载debug info.centos.org/6/x86 _ 64/rpm软件包，然后手动安装
rpm-ivhjava-1.8.0-open JDK-debug info-1.8.0.161-3.b14.el6 _9. x86 _ 64.rpm