YutSean commented on a change in pull request #3784:
URL: https://github.com/apache/hbase/pull/3784#discussion_r737296535
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File path: hbase-common/src/main/java/org/apache/hadoop/hbase/util/JVM.java
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@@ -60,6 +60,21 @@
private static final String JVMVersion = System.getProperty("java.version");
+ /**
+ * The raw String of java specification version.
+ * "1.8" for java8, "9","10"... for Java 9, 10...
+ */
+ private static final String JVM_SPEC_VERSION_STRING =
+ System.getProperty("java.specification.version");
+
+ /**
+ * The Integer represent of JVM_SPEC_VERSION, for the JVM version comparison.
+ * NOTE: Java 8 will be represented by 1.
+ */
+ private static final int JVM_SPEC_VERSION =
JVM_SPEC_VERSION_STRING.contains(".") ?
+ (int) Float.parseFloat(System.getProperty("java.specification.version")) :
Review comment:
Refined the version number logic, it now return a int like 8, 9, 10,....
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