8244548: JDK 8u: sun.misc.Version.jdkUpdateVersion() returns wrong result

Reviewed-by: aph, andrew

src/share/javavm/export/jvm.h

@@ -1470,8 +1470,8 @@ typedef struct {
 } jvm_version_info;
 
 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
-#define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
-#define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
+#define JVM_VERSION_MINOR(version) ((version & 0x00FFFF00) >> 8)
+#define JVM_VERSION_MICRO(version) 0
 
 /* Build number is available only for RE builds.
  * It will be zero for internal builds.
@@ -1485,9 +1485,9 @@ typedef struct {
     // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
     unsigned int jdk_version;   /* Consists of major, minor, micro (n.n.n) */
                                 /* and build number (xx) */
-    unsigned int update_version : 8;         /* Update release version (uu) */
+    unsigned int update_version : 16;        /* Update release version (uu) */
     unsigned int special_update_version : 8; /* Special update release version (c)*/
-    unsigned int reserved1 : 16;
+    unsigned int reserved1 : 8;
     unsigned int reserved2;
 
     /* The following bits represents new JDK supports that VM has dependency on.