When I attempt to acccess my app in various browsers, I get the warning message that the DefaultWidgetSet may need to re-compile, and then I remain stuck indefinitely on the spinner.
If I attempt to compile the widgetset in Eclipse, I get ‘Error Compiling Widgetset’:
java.lang.NullPointerException
at com.vaadin.integration.eclipse.util.WidgetsetUtil$5.visit(Widgety.xml. setUtil.java:969)
at org.eclipse.jdt.core.dom.NormalAnnotation.accept0(NormalAnnotation.java:163)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2585)
at org.eclipse.jdt.core.dom.TypeDeclaration.accept0(TypeDeclaration.java:479)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2585)
at org.eclipse.jdt.core.dom.TypeDeclaration.accept0(TypeDeclaration.java:484)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2585)
at org.eclipse.jdt.core.dom.CompilationUnit.accept0(CompilationUnit.java:220)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2514)
at com.vaadin.integration.eclipse.util.WidgetsetUtil.updateServletAnnotationForWidgetset(WidgetsetUtil.java:964)
at com.vaadin.integration.eclipse.util.WidgetsetUtil.getWidgetSet(WidgetsetUtil.java:887)
at com.vaadin.integration.eclipse.builder.WidgetsetBuildManager.compileWidgetsets(WidgetsetBuildManager.java:453)
at com.vaadin.integration.eclipse.handlers.CompileWidgetsetHandler.compileFile(CompileWidgetsetHandler.java:159)
at com.vaadin.integration.eclipse.handlers.CompileWidgetsetHandler$1.run(CompileWidgetsetHandler.java:109)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
I note that the DefaultWidgetSet exists under WebContent/VAADIN/widgetsets. I am not attempting to create my own widgetset, I just want to use the default.
Here’s my ivy.xml. I previously also attempted to use Maven but eventually removed its nature - not sure if that’s relevant.
<?xml version="1.0"?> <!DOCTYPE ivy-module []>
<ivy-module version=“2.0”
xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”
xsi:noNamespaceSchemaLocation=“http://ant.apache.org/ivy/schemas/ivy.xsd”>
<!-- The default configuration, which should be deployed to the server -->
<conf name="default" />
<!-- A configuration only needed when compiling the widget set. Should
not be deployed to the server -->
<conf name="widgetset-compile" />
<!-- A configuration used in compilation of server side classes only.
Should be deployed to the server -->
<conf name="nodeploy" />
<!-- The core server part of Vaadin -->
<dependency org="com.vaadin" name="vaadin-server" rev="&vaadin.version;" />
<!-- Vaadin themes -->
<dependency org="com.vaadin" name="vaadin-themes" rev="&vaadin.version;" />
<!-- Push support -->
<dependency org="com.vaadin" name="vaadin-push" rev="&vaadin.version;" />
<!-- Servlet 3.0 API -->
<dependency org="javax.servlet" name="javax.servlet-api" rev="3.0.1" conf="nodeploy->default" />
<!-- Precompiled DefaultWidgetSet -->
<dependency org="com.vaadin" name="vaadin-client-compiled"
rev="&vaadin.version;" />
<!-- Vaadin client side, needed for widget set compilation -->
<dependency org="com.vaadin" name="vaadin-client" rev="&vaadin.version;"
conf="widgetset-compile->default" />
<!-- Compiler for custom widget sets. Should not be deployed -->
<dependency org="com.vaadin" name="vaadin-client-compiler"
rev="&vaadin.version;" conf="widgetset-compile->default" />
<dependency org="org.springframework" name="spring-web" rev="3.2.4.RELEASE"/>
<dependency org="org.springframework" name="spring-core" rev="3.2.4.RELEASE"/>
<dependency org="org.codehaus.jackson" name="jackson-mapper-asl" rev="1.9.13"/>
<dependency org="org.codehaus.jackson" name="jackson-core-asl" rev="1.9.13"/>
<dependency org="commons-codec" name="commons-codec" rev="1.9"/>
<dependency org="org.codehaus.mojo" name="aspectj-maven-plugin" rev="1.6"/>
Any help would be appreciated.