param-test-2605.cfm

<cfscript>
	param variables.foo = "";

	writedump(variables);	

	/*
Railo 4.2.1.007 Error (template)
Message	Invalid Identifier, the following character cannot be part of a identifier [=]
Stacktrace	The Error Occurred in
E:\home\html\railo-test\param-test-2605.cfm: line 2 
1: <cfscript>
2: param variables.foo = "";
3: 
4: writedump(variables);	

Java Stacktrace	Invalid Identifier, the following character cannot be part of a identifier [=] 
 	at railo.transformer.cfml.tag.CFMLTransformer.identifier(CFMLTransformer.java:1108):1108 
 	at railo.transformer.cfml.script.AbstrCFMLScriptTransformer.attributeName(AbstrCFMLScriptTransformer.java:1996):1996 
 	at railo.transformer.cfml.script.AbstrCFMLScriptTransformer.attribute(AbstrCFMLScriptTransformer.java:1929):1929 
 	at railo.transformer.cfml.script.AbstrCFMLScriptTransformer.attributes(AbstrCFMLScriptTransformer.java:1871):1871 
 	at railo.transformer.cfml.script.AbstrCFMLScriptTransformer._paramStatement(AbstrCFMLScriptTransformer.java:1347):1347 
 	at railo.transformer.cfml.script.AbstrCFMLScriptTransformer.paramStatement(AbstrCFMLScriptTransformer.java:1271):1271 
 	at railo.transformer.cfml.script.AbstrCFMLScriptTransformer.statement(AbstrCFMLScriptTransformer.java:193):193 
 	at railo.transformer.cfml.script.AbstrCFMLScriptTransformer.statement(AbstrCFMLScriptTransformer.java:183):183 
 	at railo.transformer.cfml.script.AbstrCFMLScriptTransformer.statements(AbstrCFMLScriptTransformer.java:166):166 
 	at railo.transformer.cfml.script.AbstrCFMLScriptTransformer.statements(AbstrCFMLScriptTransformer.java:150):150 
 	at railo.transformer.cfml.script.CFMLScriptTransformer.transform(CFMLScriptTransformer.java:32):32 
 	at railo.transformer.cfml.tag.CFMLTransformer.tag(CFMLTransformer.java:582):582 
 	at railo.transformer.cfml.tag.CFMLTransformer.body(CFMLTransformer.java:313):313 
 	at railo.transformer.cfml.tag.CFMLTransformer.transform(CFMLTransformer.java:253):253 
 	at railo.transformer.cfml.tag.CFMLTransformer.transform(CFMLTransformer.java:124):124 
 	at railo.runtime.compiler.CFMLCompilerImpl.compile(CFMLCompilerImpl.java:55):55 
 	at railo.runtime.PageSourceImpl._compile(PageSourceImpl.java:309):309 
 	at railo.runtime.PageSourceImpl.compile(PageSourceImpl.java:283):283 
 	at railo.runtime.PageSourceImpl.loadPhysical(PageSourceImpl.java:242):242 
 	at railo.runtime.PageSourceImpl.loadPage(PageSourceImpl.java:166):166 
 	at railo.runtime.PageSourceImpl.loadPage(PageSourceImpl.java:869):869 
 	at railo.runtime.PageContextImpl.doInclude(PageContextImpl.java:905):905 
 	at railo.runtime.PageContextImpl.doInclude(PageContextImpl.java:861):861 
 	at railo.runtime.listener.ModernAppListener._onRequest(ModernAppListener.java:206):206 
 	at railo.runtime.listener.MixedAppListener.onRequest(MixedAppListener.java:18):18 
 	at railo.runtime.PageContextImpl.execute(PageContextImpl.java:2215):2215 
 	at railo.runtime.PageContextImpl.execute(PageContextImpl.java:2182):2182 
 	at railo.runtime.engine.CFMLEngineImpl.serviceCFML(CFMLEngineImpl.java:332):332 
 	at railo.loader.servlet.CFMLServlet.service(CFMLServlet.java:29):29 
 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728):728 
 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305):305 
 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210):210 
 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222):222 
 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123):123 
 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171):171 
 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99):99 
 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118):118 
 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408):408 
 	at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:197):197 
 	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589):589 
 	at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1852):1852 
 	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source):-1 
 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source):-1 
 	at java.lang.Thread.run(Unknown Source):-1 
 
Timestamp	9/11/14 10:18:08 AM CDT
	*/
</cfscript>

Shouldn't that then just be
variables.foo = "";
?

problem is the whitespace in front of "="