Trying to convert a VARCHAR to UUID will now fail if the text contains a…

Trying to convert a VARCHAR to UUID will now fail if the text contains a character that is not a hex digit, '-', or not a whitespace.

h2/src/docsrc/html/changelog.html

@@ -18,7 +18,9 @@ Change Log
 <h1>Change Log</h1>
 
 <h2>Next Version (unreleased)</h2>
-<ul><li>TriggerAdapter: in "before" triggers, values can be changed using the ResultSet.updateX methods.
+<ul><li>Trying to convert a VARCHAR to UUID will now fail if the text contains 
+    a character that is not a hex digit, '-', or not a whitespace.
+</li><li>TriggerAdapter: in "before" triggers, values can be changed using the ResultSet.updateX methods.
 </li><li>Creating a table with column data type NULL now works (even if not very useful).
 </li><li>ALTER TABLE ALTER COLUMN no longer copies the data for widening conversions
     (for example if only the precision was increased) unless necessary.

h2/src/main/org/h2/value/ValueUuid.java

@@ -10,6 +10,8 @@ import java.sql.PreparedStatement;
 import java.sql.SQLException;
 import java.util.UUID;
 
+import org.h2.constant.ErrorCode;
+import org.h2.message.DbException;
 import org.h2.util.Utils;
 import org.h2.util.MathUtils;
 import org.h2.util.StringUtils;
@@ -100,8 +102,10 @@ public class ValueUuid extends Value {
                 continue;
             } else if (c >= 'A' && c <= 'F') {
                 low = (low << 4) | (c - 'A' + 0xa);
-            } else {
+            } else if (c <= ' ') {
                 continue;
+            } else {
+                throw DbException.get(ErrorCode.DATA_CONVERSION_ERROR_1, s);
             }
             if (j++ == 15) {
                 high = low;

h2/src/test/org/h2/test/test-1.3.txt

 --- special grammar and test cases ---------------------------------------------------------------------------------------------
+call cast('null' as uuid);
+> exception
+
 create table test(name varchar(255));
 > ok