我无法在Java 9上启动solr，出现以下错误。
[shahid@host172 logs]$ tail -20 solr-8983-console.log
Java HotSpot(TM) 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
Java HotSpot(TM) 64-Bit Server VM warning: Option UseParNewGC was deprecated in version 9.0 and will likely be removed in a future release.
Unrecognized VM option 'PrintHeapAtGC'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
这是切换到统一日志记录系统以记录 GC 相关消息的结果。 有相当多的-XX选项已经消失，更多细节可以在这里找到：
https://bugs.openjdk.java.net/browse/JDK-8145092
您需要删除 -XX：+PrintHeapAtGC 标志。 Solr JIRA上有一个错误：
https://issues.apache.org/jira/browse/SOLR-10184