topic Activiti-explorer and Vaadin in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/activiti-explorer-and-vaadin/m-p/94952#M65104 <HTML><HEAD></HEAD><BODY><SPAN>Hello community,</SPAN><BR /><BR /><SPAN>I'm doing the first steps with Vaadin in activiti-explorer. I want insert in my form a button that if is clicked show a new window. This is my code:</SPAN><BR /><BR /><SPAN>public class CongressButton extends VerticalLayout{</SPAN><BR /><BR /><SPAN>&nbsp;&nbsp;&nbsp;private static final long serialVersionUID = 1L;</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;private Button open;</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;private Window subwindow;</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;public CongressButton(){</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;super();</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // Create the window</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; subwindow = new Window("A subwindow");</SPAN><BR /><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // Configure the windws layout; by default a VerticalLayout</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VerticalLayout layout = (VerticalLayout) subwindow.getContent();</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; layout.setMargin(true);</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; layout.setSpacing(true);</SPAN><BR /><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // Add some content; a label and a close-button</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Label message = new Label("This is a subwindow");</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; subwindow.addComponent(message);</SPAN><BR /><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Button close = new Button("Close", new Button.ClickListener() {</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // inline click-listener</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public void buttonClick(ClickEvent event) {</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // close the window by removing it from the parent window</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (subwindow.getParent()).removeWindow(subwindow);</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; });</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // The components added to the window are actually added to the window's</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // layout; you can use either. Alignments are set using the layout</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; layout.addComponent(close);</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; layout.setComponentAlignment(close, Alignment.TOP_RIGHT);</SPAN><BR /><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // Add a button for opening the subwindow</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; open = new Button("Open subwindow", new Button.ClickListener() {</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // inline click-listener</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public void buttonClick(ClickEvent event) {</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (subwindow.getParent() != null) {</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // window is already showing</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getWindow().showNotification("Window is already open");</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } else {</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // Open the subwindow by adding it to the parent window</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; getWindow().addWindow(subwindow);</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; });</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; addComponent(open);</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</SPAN><BR /><BR /><SPAN>&nbsp;&nbsp;&nbsp;</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;public Button getButton(){</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return open;</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;}</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;</SPAN><BR /><SPAN>}</SPAN><BR /><BR /><SPAN>But when I click the button the following error appears:</SPAN><BR /><BR /><SPAN>com.vaadin.event.ListenerMethod$MethodException</SPAN><BR /><SPAN style="color:#FF0000;">Cause: java.lang.NullPointerException</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1193)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.ui.Button.fireClick(Button.java:539)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.ui.Button.changeVariables(Button.java:206)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariableBurst(AbstractCommunicationManager.java:1299)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1219)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:735)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:296)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:501)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.Thread.run(Thread.java:662)</SPAN><BR /><SPAN style="color:#FF0000;">Caused by: java.lang.NullPointerException<BR />&nbsp;&nbsp;&nbsp;at formsExtensions.CongressButton$2.buttonClick(CongressButton.java:54)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at java.lang.reflect.Method.invoke(Method.java:597)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:490)</SPAN><BR /><SPAN>&nbsp;&nbsp;&nbsp;… 22 more</SPAN><BR /><BR /><SPAN>I got the code for a example of Vaadin demo page and works fine, but when I try run this in my BPMN appears this problem. I think that problem is caused because the VerticalLayout window (father window) doesn't know what is the father window but I don`t know how do that with activiti.</SPAN><BR /><BR /><SPAN>Thanks very much for your replies and sorry for my bad english!&nbsp; <img id="smileytongue" class="emoticon emoticon-smileytongue" src="https://connect.hyland.com/i/smilies/16x16_smiley-tongue.png" alt="Smiley Tongue" title="Smiley Tongue" /> </SPAN><BR /><SPAN>Bye!</SPAN></BODY></HTML> Wed, 01 Feb 2012 21:20:59 GMT variag 2012-02-01T21:20:59Z Activiti-explorer and Vaadin https://connect.hyland.com/t5/alfresco-archive/activiti-explorer-and-vaadin/m-p/94952#M65104 Hello community,I'm doing the first steps with Vaadin in activiti-explorer. I want insert in my form a button that if is clicked show a new window. This is my code<IMG id="smileytongue" class="emoticon emoticon-smileytongue" src="https://migration33.stage.lithium.com/i/smilies/16x16_smiley-tongue.png" alt="Smiley Tongue" title="Smiley Tongue" />ublic class CongressButton extends VerticalLayout{&nbsp;&nbsp;&nbsp;private static final long serialVersionUID = 1L;&nbsp;&nbsp;&nbsp;private Button open;&nbsp;&nbsp;&nbsp;private Wed, 01 Feb 2012 21:20:59 GMT https://connect.hyland.com/t5/alfresco-archive/activiti-explorer-and-vaadin/m-p/94952#M65104 variag 2012-02-01T21:20:59Z Re: Activiti-explorer and Vaadin https://connect.hyland.com/t5/alfresco-archive/activiti-explorer-and-vaadin/m-p/94953#M65105 <HTML><HEAD></HEAD><BODY><SPAN>I solved it, I used the class ExplorerApp to obtain de MainWindow.</SPAN><BR /><BR /><SPAN>Bye!</SPAN></BODY></HTML> Sat, 04 Feb 2012 18:51:54 GMT https://connect.hyland.com/t5/alfresco-archive/activiti-explorer-and-vaadin/m-p/94953#M65105 variag 2012-02-04T18:51:54Z Re: Activiti-explorer and Vaadin https://connect.hyland.com/t5/alfresco-archive/activiti-explorer-and-vaadin/m-p/94954#M65106 <HTML><HEAD></HEAD><BODY><SPAN>hi</SPAN><BR /><SPAN>i want to render form (in bpmn2.0.xml file)in vaadin?</SPAN><BR /><SPAN>explorer how to render form from xml when click start process …?</SPAN><BR /><SPAN>how to do?</SPAN><BR /><SPAN>plz help me</SPAN><BR /><SPAN>Thanks</SPAN></BODY></HTML> Fri, 11 Jul 2014 18:50:51 GMT https://connect.hyland.com/t5/alfresco-archive/activiti-explorer-and-vaadin/m-p/94954#M65106 mghb2009 2014-07-11T18:50:51Z Re: Activiti-explorer and Vaadin https://connect.hyland.com/t5/alfresco-archive/activiti-explorer-and-vaadin/m-p/94955#M65107 <HTML><HEAD></HEAD><BODY><A href="http://activiti.org/userguide/index.html#formProperties" rel="nofollow noopener noreferrer">http://activiti.org/userguide/index.html#formProperties</A></BODY></HTML> Tue, 22 Jul 2014 07:10:40 GMT https://connect.hyland.com/t5/alfresco-archive/activiti-explorer-and-vaadin/m-p/94955#M65107 jbarrez 2014-07-22T07:10:40Z