Do not invoke StringUtils.cache() twice per string

h2/src/main/org/h2/command/Parser.java

@@ -4460,8 +4460,7 @@ public class Parser {
             }
             currentToken = "'";
             checkLiterals(true);
-            currentValue = ValueString.get(StringUtils.cache(result),
-                    database.getMode().treatEmptyStringsAsNull);
+            currentValue = ValueString.get(result, database.getMode().treatEmptyStringsAsNull);
             parseIndex = i;
             currentTokenType = VALUE;
             return;
@@ -4474,8 +4473,7 @@ public class Parser {
             String result = sqlCommand.substring(begin, i);
             currentToken = "'";
             checkLiterals(true);
-            currentValue = ValueString.get(StringUtils.cache(result),
-                    database.getMode().treatEmptyStringsAsNull);
+            currentValue = ValueString.get(result, database.getMode().treatEmptyStringsAsNull);
             parseIndex = i;
             currentTokenType = VALUE;
             return;