[rules-users] Special characters in rule parameter

Hi all, We have an issue when we want to use special characters in a rule parameter. For example, if we use french accents like é or è, the following exception is raised during drl file loading : line 1:8: unexpected char: 0xE9 at org.drools.semantics.java.parser.JavaLexer.nextToken(JavaLexer.java:611) at antlr.TokenBuffer.fill(TokenBuffer.java:69) at antlr.TokenBuffer.LA(TokenBuffer.java:80) at antlr.LLkParser.LA(LLkParser.java:52) at org.drools.semantics.java.parser.JavaRecognizer.unaryExpressionNotPlusMinus(JavaRecognizer.java:4778) at org.drools.semantics.java.parser.JavaRecognizer.unaryExpression(JavaRecognizer.java:4636) at org.drools.semantics.java.parser.JavaRecognizer.multiplicativeExpression(JavaRecognizer.java:4479) at org.drools.semantics.java.parser.JavaRecognizer.additiveExpression(JavaRecognizer.java:4419) at org.drools.semantics.java.parser.JavaRecognizer.shiftExpression(JavaRecognizer.java:4350) at org.drools.semantics.java.parser.JavaRecognizer.relationalExpression(JavaRecognizer.java:4216) at org.drools.semantics.java.parser.JavaRecognizer.equalityExpression(JavaRecognizer.java:4156) at org.drools.semantics.java.parser.JavaRecognizer.andExpression(JavaRecognizer.java:4119) at org.drools.semantics.java.parser.JavaRecognizer.exclusiveOrExpression(JavaRecognizer.java:4082) We are using Drools 2.5 with JDK 1.4. Is it possible to use special characters in a rule parameter ? If yes, what is our mistake ? Thanks a lot. Mickaël