Unable to parse JavaScript GWT 2.7.0

[jbialobr]

Linking modules
Bootstrap link for command-line module 'com.allen_sauer.gwt.dnd.gwt-dnd'
Linking module 'com.allen_sauer.gwt.dnd.gwt-dnd'
Invoking Linker Cross-Site-Iframe
Attempting to optimize JS
[ERROR] Unable to parse JavaScript
com.google.gwt.dev.js.JsParserException: StandardLinkerContext.optimizeJavaScript(17): missing ( before function parameters

function com_allen_sauer_gwt_dnd_gwt-dnd() {
-------------------------------------^
at com.google.gwt.dev.js.JsParser$1.error(JsParser.java:111)
at com.google.gwt.dev.js.rhino.Context.reportError(Context.java:459)
at com.google.gwt.dev.js.rhino.TokenStream.reportSyntaxError(TokenStream.java:1594)
at com.google.gwt.dev.js.rhino.Parser.reportError(Parser.java:72)
at com.google.gwt.dev.js.rhino.Parser.mustMatchToken(Parser.java:64)
at com.google.gwt.dev.js.rhino.Parser.function(Parser.java:189)
at com.google.gwt.dev.js.rhino.Parser.parse(Parser.java:116)
at com.google.gwt.dev.js.JsParser.parseImpl(JsParser.java:134)
at com.google.gwt.dev.js.JsParser.parse(JsParser.java:89)
at com.google.gwt.dev.js.JsParser.parseInto(JsParser.java:94)
at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.optimizeJavaScript(StandardLinkerContext.java:441)
at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:422)
at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.generateSelectionScript(SelectionScriptLinker.java:411)
at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.emitSelectionScript(SelectionScriptLinker.java:299)
at com.google.gwt.core.ext.linker.impl.SelectionScriptLinker.link(SelectionScriptLinker.java:212)
at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.invokeFinalLink(StandardLinkerContext.java:336)
at com.google.gwt.dev.DevModeBase.link(DevModeBase.java:988)
at com.google.gwt.dev.DevMode.doSlowStartup(DevMode.java:503)
at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1080)
at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:836)
at com.google.gwt.dev.DevMode.main(DevMode.java:413)