Cassandra竟然歧视OpenJDK

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cassandra 2.1.2的启动日志中出现如下字样:

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WARN \[main\] 2013-11-24 10:54:30,423 CassandraDaemon.java (line 155) OpenJDK is not recommended. Please upgrade to the newest Oracle Java release

查看CassandraDaemon.java源代码,有如下行:

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 String javaVmName = System.getProperty("java.vm.name");
logger.info("JVM vendor/version: {}/{}", javaVmName, javaVersion);
if (javaVmName.contains("OpenJDK"))
{
 // There is essentially no QA done on OpenJDK builds, and
 // clusters running OpenJDK have seen many heap and load issues.
 logger.warn("OpenJDK is not recommended. Please upgrade to the newest Oracle Java release");
}
else if (!javaVmName.contains("HotSpot"))
{
 logger.warn("Non-Oracle JVM detected. Some features, such as immediate unmap of compacted SSTables, may not work as intended");
}

OpenJDK没这么差吧！

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[erq]