We should change the exception message from
Caused by: java.lang.RuntimeException: No type named "DeoptimizeObjectsALotThread" in database
to
Caused by: java.lang.RuntimeException: No type named "DeoptimizeObjectsALotThread" in hotspot type database

error was (from JDK-8348800) :
serviceability/sa/CDSJMapClstats.java

at jdk.hotspot.agent/sun.jvm.hotspot.runtime.Threads.createJavaThreadWrapper(Threads.java:196)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.Threads.getJavaThreadAt(Threads.java:178)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.ObjectHeap.collectLiveRegions(ObjectHeap.java:320)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.ObjectHeap.iterateSubtypes(ObjectHeap.java:216)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.ObjectHeap.iterateObjectsOfKlass(ObjectHeap.java:116)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.ObjectHeap.iterateObjectsOfKlass(ObjectHeap.java:128)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.ClassLoaderStats.printClassLoaderStatistics(ClassLoaderStats.java:95)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.ClassLoaderStats.run(ClassLoaderStats.java:78)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.run(JMap.java:121)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:278)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.start(Tool.java:241)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.execute(Tool.java:134)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.main(JMap.java:202)
at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runJMAP(SALauncher.java:344)
at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:507)
Caused by: java.lang.RuntimeException: No type named "DeoptimizeObjectsALotThread" in database
at jdk.hotspot.agent/sun.jvm.hotspot.types.basic.BasicTypeDataBase.lookupType(BasicTypeDataBase.java:86)
at jdk.hotspot.agent/sun.jvm.hotspot.HotSpotTypeDataBase.lookupType(HotSpotTypeDataBase.java:137)
at jdk.hotspot.agent/sun.jvm.hotspot.types.basic.BasicTypeDataBase.lookupType(BasicTypeDataBase.java:80)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VirtualConstructor.instantiateWrapperFor(VirtualConstructor.java:75)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.Threads.createJavaThreadWrapper(Threads.java:192)