Windows启动RocketMq报错：Unrecognized VM option ‘UseCMSCompactAtFullCollection‘

rocketmq下载地址：Downloading the Apache RocketMQ Releases - Apache RocketMQ

 环境

问题：

下载完后解压包，启动cmd文件时，出现如下错误提示：

解决方案：

1、更改jdk版本至9以下。9及以上版本废弃了CMSCompactAtFullCollection，无法支持。 

2、删掉jvm不支持的参数：打开runserver.cmd编辑；或者注释掉这行。

 可能还会出现其他不支持的类：PrintGCDateStamps、PrintGCTimeStamps等都是这么处理。

Unrecognized VM option ''
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

还有些在 JDK 9 中不再工作的 50 个选项列表。检查下你是否在命令行和启动脚本中使用了这些选项：

• AdjustConcurrency

• CMSCompactWhenClearAllSoftRefs

• CMSDumpAtPromotionFailure

• CMSFullGCsBeforeCompaction

• CMSIncrementalDutyCycle

• CMSIncrementalDutyCycleMin

• CMSIncrementalMode

• CMSIncrementalOffset

• CMSIncrementalPacing

• CMSParPromoteBlocksToClaim

• CMSPrintEdenSurvivorChunks

• CollectGen0First

• GCLogFileSize

• NumberOfGCLogFiles

• ParallelGCVerbose

• PrintAdaptiveSizePolicy

• PrintCMSInitiationStatistics

• PrintCMSStatistics

• PrintClassHistogramAfterFullGC

• PrintClassHistogramBeforeFullGC

• PrintFLSCensus

• PrintFLSStatistics

• PrintGCApplicationConcurrentTime

• PrintGCApplicationStoppedTime

• PrintGCCause

• PrintGCDateStamps

• PrintGCTaskTimeStamps

• PrintGCTimeStamps

• PrintHeapAtGC

• PrintHeapAtGCExtended

• PrintJNIGCStalls

• PrintOldPLAB

• PrintPLAB

• PrintParallelOldGCPhaseTimes

• PrintPromotionFailure

• PrintReferenceGC

• PrintTLAB

• PrintTenuringDistribution

• TraceDynamicGCThreads

• TraceGen0Time

• TraceGen1Time

• TraceMetadataHumongousAllocation

• TraceParallelOldGCTasks

• UseCMSCollectionPassing

• UseCMSCompactAtFullCollection

• UseGCLogFileRotation

• UseMemSetInBOT

• UsePPCLWSYNC

• UseVMInterruptibleIO

• WorkAroundNPTLTimedWaitHang