XWQL doesn't support Unicode characters in the class name

$services.query.hql(", BaseObject as obj where doc.fullName = obj.name and obj.className = 'TâchesTrésorerieCode.TâchesTrésorerieClass'").execute()

$services.query.xwql('from doc.object(TâchesTrésorerieCode.TâchesTrésorerieClass)').execute()

Caused by: org.xwiki.query.QueryException: Exception while translating [from doc.object(TâchesTrésorerieCode.TâchesTrésorerieClass)] XWQL query to the [hql] language. Query statement = [from doc.object(TâchesTrésorerieCode.TâchesTrésorerieClass)]
	at org.xwiki.query.xwql.internal.XWQLQueryExecutor.execute(XWQLQueryExecutor.java:102)
	at org.xwiki.query.internal.DefaultQueryExecutorManager.execute(DefaultQueryExecutorManager.java:71)
	at org.xwiki.query.internal.SecureQueryExecutorManager.execute(SecureQueryExecutorManager.java:90)
	at org.xwiki.query.internal.DefaultQuery.execute(DefaultQuery.java:248)
	at org.xwiki.query.internal.ScriptQuery.execute(ScriptQuery.java:236)
	at sun.reflect.GeneratedMethodAccessor451.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
	... 125 more
Caused by: org.xwiki.query.jpql.lexer.LexerException: [1,56] Unknown token: â
	at org.xwiki.query.jpql.lexer.Lexer.getToken(Lexer.java:809)
	at org.xwiki.query.jpql.lexer.Lexer.peek(Lexer.java:36)
	at org.xwiki.query.jpql.parser.Parser.parse(Parser.java:110)
	at org.xwiki.query.jpql.internal.JPQLParser.parse(JPQLParser.java:46)
	at org.xwiki.query.xwql.internal.hql.XWQLtoHQLTranslator.translate(XWQLtoHQLTranslator.java:55)
	at org.xwiki.query.xwql.internal.XWQLQueryExecutor.execute(XWQLQueryExecutor.java:79)
	... 135 more