ResourceBundle - java.util.regex.pattern

J'utilise la classe ResourceBundle pour récupérer des informations dans un fichier de properties.
Fichier de properties : toto=-3
Code:

1 2 3 String beginPeriod = rb.getString("toto");
J'obtiens une erreur disant que la valeur de ma clé "toto" comprend le caractère '-'. Comment résoudre ce problème ?

Merci

l'exception avec son stacktrace stp

stacktrace

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java.util.regex.PatternSyntaxException: Dangling meta character '+' near index 0
+
^
	at java.util.regex.Pattern.error(Pattern.java:1528)
	at java.util.regex.Pattern.sequence(Pattern.java:1645)
	at java.util.regex.Pattern.expr(Pattern.java:1545)
	at java.util.regex.Pattern.compile(Pattern.java:1279)
	at java.util.regex.Pattern.<init>(Pattern.java:1035)
	at java.util.regex.Pattern.compile(Pattern.java:779)
	at java.lang.String.replaceAll(String.java:1663)
	at org.apache.jsp.AdvenceSearch_PreRenseigne_jsp.inputFormAdvenceSearch_PreRenseigneForm(AdvenceSearch_PreRenseigne_jsp.java:206)
	at org.apache.jsp.AdvenceSearch_PreRenseigne_jsp._jspService(AdvenceSearch_PreRenseigne_jsp.java:628)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:210)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
	at net.atos.mm.fwk.fw3.servlet.JSPServlet._service(Unknown Source)
	at net.atos.mm.fwk.fw3.servlet.JSPServlet.service(Unknown Source)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at net.atos.mm.fwk.fw3.tools.filters.AuthenticationFilter.doFilter(Unknown Source)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at com.atosworldline.sips.office.front.OCOfferFilter.doFilter(OCOfferFilter.java:61)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at net.atos.mm.fwk.fw3.filter.OwaspFilter.doFilter(Unknown Source)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at net.atos.mm.fwk.fw3.filter.DOSFilter.doFilter(Unknown Source)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at net.atos.mm.fwk.fw3.filter.FirstLevelFilter.doFilter(Unknown Source)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2422)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:163)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1040)
	at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1151)
	at java.lang.Thread.run(Thread.java:534)

Code:

1 2 java.util.regex.PatternSyntaxException: Dangling meta character '+' near index 0
ton properties file commence par un +?
tu peux ajouter ton properties file aussi?