8140344: add support for 3 digit update release numbers

Reviewed-by: coffeys

src/share/classes/sun/misc/Version.java.template

@@ -291,15 +291,24 @@ public class Version {
                 jvm_minor_version = Character.digit(cs.charAt(2), 10);
                 jvm_micro_version = Character.digit(cs.charAt(4), 10);
                 cs = cs.subSequence(5, cs.length());
-                if (cs.charAt(0) == '_' && cs.length() >= 3 &&
-                    Character.isDigit(cs.charAt(1)) &&
-                    Character.isDigit(cs.charAt(2))) {
-                    int nextChar = 3;
+                if (cs.charAt(0) == '_' && cs.length() >= 3) {
+                    int nextChar = 0;
+                    if (Character.isDigit(cs.charAt(1)) &&
+                        Character.isDigit(cs.charAt(2)) &&
+                        Character.isDigit(cs.charAt(3)))
+                    {
+                        nextChar = 4;
+                    } else if (Character.isDigit(cs.charAt(1)) &&
+                        Character.isDigit(cs.charAt(2)))
+                    {
+                        nextChar = 3;
+                    }
+
                     try {
-                        String uu = cs.subSequence(1, 3).toString();
+                        String uu = cs.subSequence(1, nextChar).toString();
                         jvm_update_version = Integer.valueOf(uu).intValue();
-                        if (cs.length() >= 4) {
-                            char c = cs.charAt(3);
+                        if (cs.length() >= nextChar + 1) {
+                            char c = cs.charAt(nextChar);
                             if (c >= 'a' && c <= 'z') {
                                 jvm_special_version = Character.toString(c);
                                 nextChar++;

src/share/native/common/jdk_util.c

@@ -52,6 +52,7 @@ JDK_GetVersionInfo0(jdk_version_info* info, size_t info_size) {
 
     const char* jdk_update_string = JDK_UPDATE_VERSION;
     unsigned int jdk_update_version = 0;
+    int len_update_ver = 0;
     char update_ver[3];
     char jdk_special_version = '\0';
 
@@ -78,16 +79,17 @@ JDK_GetVersionInfo0(jdk_version_info* info, size_t info_size) {
 
     assert(jdk_build_number >= 0 && jdk_build_number <= 255);
 
-    if (strlen(jdk_update_string) == 2 || strlen(jdk_update_string) == 3) {
-        if (isdigit(jdk_update_string[0]) && isdigit(jdk_update_string[1])) {
-            update_ver[0] = jdk_update_string[0];
-            update_ver[1] = jdk_update_string[1];
-            update_ver[2] = '\0';
-            jdk_update_version = (unsigned int) atoi(update_ver);
-            if (strlen(jdk_update_string) == 3) {
-                jdk_special_version = jdk_update_string[2];
-            }
+    len_update_ver = strlen(jdk_update_string);
+    if (len_update_ver >= 2 && len_update_ver <= 4) {
+        int update_digits = len_update_ver;
+
+        if (!isdigit(jdk_update_string[len_update_ver - 1])) {
+            jdk_special_version = jdk_update_string[len_update_ver -1];
+            update_digits = len_update_ver - 1;
         }
+        strncpy(update_ver, jdk_update_string, update_digits);
+        update_ver[update_digits] = '\0';
+        jdk_update_version = (unsigned int) atoi(update_ver);
     }
 
     memset(info, 0, info_size);

test/sun/misc/Version/Version.java

@@ -29,11 +29,13 @@
  * @run main Version
  */
 
+import java.util.regex.*;
 import static sun.misc.Version.*;
+
 public class Version {
 
     public static void main(String[] args) throws Exception {
-        VersionInfo jdk = newVersionInfo(System.getProperty("java.runtime.version"));
+        VersionInfo jdk = jdkVersionInfo(System.getProperty("java.runtime.version"));
         VersionInfo v1 = new VersionInfo(jdkMajorVersion(),
                                          jdkMinorVersion(),
                                          jdkMicroVersion(),
@@ -44,7 +46,7 @@ public class Version {
         if (!jdk.equals(v1)) {
             throw new RuntimeException("Unmatched version: " + jdk + " vs " + v1);
         }
-        VersionInfo jvm = newVersionInfo(System.getProperty("java.vm.version"));
+        VersionInfo jvm = jvmVersionInfo(System.getProperty("java.vm.version"));
         VersionInfo v2 = new VersionInfo(jvmMajorVersion(),
                                          jvmMinorVersion(),
                                          jvmMicroVersion(),
@@ -95,74 +97,73 @@ public class Version {
         }
     }
 
-    private static VersionInfo newVersionInfo(String version) throws Exception {
+    private static VersionInfo jdkVersionInfo(String version) throws Exception {
         // valid format of the version string is:
-        // n.n.n[_uu[c]][-<identifer>]-bxx
+        // <major>.<minor>[.<micro>][_uu[c]][-<identifier>]-bxx
         int major = 0;
         int minor = 0;
         int micro = 0;
         int update = 0;
         String special = "";
         int build = 0;
-        CharSequence cs = version;
-        if (cs.length() >= 5) {
-            if (Character.isDigit(cs.charAt(0)) && cs.charAt(1) == '.' &&
-                Character.isDigit(cs.charAt(2)) && cs.charAt(3) == '.' &&
-                Character.isDigit(cs.charAt(4))) {
-                major = Character.digit(cs.charAt(0), 10);
-                minor = Character.digit(cs.charAt(2), 10);
-                micro = Character.digit(cs.charAt(4), 10);
-                cs = cs.subSequence(5, cs.length());
-            } else if (Character.isDigit(cs.charAt(0)) &&
-                       Character.isDigit(cs.charAt(1)) && cs.charAt(2) == '.' &&
-                       Character.isDigit(cs.charAt(3))) {
-                // HSX has nn.n[n] (major.minor) version
-                major = Integer.valueOf(version.substring(0, 2)).intValue();
-                if (Character.isDigit(cs.charAt(4))) {
-                    minor = Integer.valueOf(version.substring(3, 5)).intValue();
-                    cs = cs.subSequence(5, cs.length());
-                }
-                else {
-                    minor = Character.digit(cs.charAt(3), 10);
-                    cs = cs.subSequence(4, cs.length());
-                }
-            }
-            if (cs.charAt(0) == '_' && cs.length() >= 3 &&
-                Character.isDigit(cs.charAt(1)) &&
-                Character.isDigit(cs.charAt(2))) {
-                int nextChar = 3;
-                String uu = cs.subSequence(1, 3).toString();
-                update = Integer.valueOf(uu).intValue();
-                if (cs.length() >= 4) {
-                    char c = cs.charAt(3);
-                    if (c >= 'a' && c <= 'z') {
-                        special = Character.toString(c);
-                        nextChar++;
-                    }
-                }
-                cs = cs.subSequence(nextChar, cs.length());
-            }
-            if (cs.charAt(0) == '-') {
-                // skip the first character
-                // valid format: <identifier>-bxx or bxx
-                // non-product VM will have -debug|-release appended
-                cs = cs.subSequence(1, cs.length());
-                String[] res = cs.toString().split("-");
-                for (int i = res.length - 1; i >= 0; i--) {
-                    String s = res[i];
-                    if (s.charAt(0) == 'b') {
-                        try {
-                            build = Integer.parseInt(s.substring(1, s.length()));
-                            break;
-                        } catch (NumberFormatException nfe) {
-                            // ignore
-                        }
-                    }
-                }
-            }
-        }
+
+        String regex = "^([0-9]{1,2})";     // major
+        regex += "\\.";                     // separator
+        regex += "([0-9]{1,2})";            // minor
+        regex += "(\\.";                    // separator
+        regex +=   "([0-9]{1,2})";          // micro
+        regex += ")?";                      // micro is optional
+        regex += "(_";
+        regex +=   "([0-9]{2,3})";          // update
+        regex +=   "([a-z])?";              // special char (optional)
+        regex += ")?";                      // _uu[c] is optional
+        regex += ".*";                      // -<identifier>
+        regex += "(\\-b([0-9]{1,3}$))";     // JDK -bxx
+
+        Pattern p = Pattern.compile(regex);
+        Matcher m = p.matcher(version);
+        m.matches();
+
+        major = Integer.parseInt(m.group(1));
+        minor = Integer.parseInt(m.group(2));
+        micro = (m.group(4) == null) ? 0 : Integer.parseInt(m.group(4));
+        update = (m.group(6) == null) ? 0 : Integer.parseInt(m.group(6));
+        special = (m.group(7) == null) ? "" : m.group(7);
+        build = Integer.parseInt(m.group(9));
+
         VersionInfo vi = new VersionInfo(major, minor, micro, update, special, build);
-        System.out.printf("newVersionInfo: input=%s output=%s\n", version, vi);
+        System.out.printf("jdkVersionInfo: input=%s output=%s\n", version, vi);
         return vi;
     }
+
+    private static VersionInfo jvmVersionInfo(String version) throws Exception {
+        try {
+            // valid format of the version string is:
+            // <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
+            int major = 0;
+            int minor = 0;
+            int build = 0;
+
+            String regex = "^([0-9]{1,2})";     // major
+            regex += "\\.";                     // separator
+            regex += "([0-9]{1,2})";            // minor
+            regex += "(\\-b([0-9]{1,3}))";      // JVM -bxx
+            regex += ".*";
+
+            Pattern p = Pattern.compile(regex);
+            Matcher m = p.matcher(version);
+            m.matches();
+
+            major = Integer.parseInt(m.group(1));
+            minor = Integer.parseInt(m.group(2));
+            build = Integer.parseInt(m.group(4));
+
+            VersionInfo vi = new VersionInfo(major, minor, 0, 0, "", build);
+            System.out.printf("jvmVersionInfo: input=%s output=%s\n", version, vi);
+            return vi;
+        } catch (IllegalStateException e) {
+            // local builds may also follow the jdkVersionInfo format
+            return jdkVersionInfo(version);
+        }
+    }
 }