What I am doing is that, when I get the params from user, I am initializing those params using constructuors on my class. and running a thread on my class. When I debug I am getting the below exception. I guess it is not stopping for the entire process to execute. I am new to GWT, can anybody let me know how can I do that.
Code Thread thread = new Thread(new ExportData(param 1, param 2)); thread.start(); I have run method which will be executed based on the params. Exception java.lang.RuntimeException: Error running on Swing UI thread at com.google.gwt.dev.SwingUI.invokeAndWait(SwingUI.java:401) at com.google.gwt.dev.SwingUI.initialize(SwingUI.java:245) at com.google.gwt.dev.DevModeBase.doStartup(DevModeBase.java:889) at com.google.gwt.dev.DevMode.doStartup(DevMode.java:424) at com.google.gwt.junit.JUnitShell.doStartup(JUnitShell.java:932) at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1058) at com.google.gwt.junit.JUnitShell.getUnitTestShell(JUnitShell.java:708) at com.google.gwt.junit.JUnitShell.runTest(JUnitShell.java:653) at com.google.gwt.junit.client.GWTTestCase.runTest(GWTTestCase.java:441) at junit.framework.TestCase.runBare(TestCase.java:134) at junit.framework.TestResult$1.protect(TestResult.java:110) at junit.framework.TestResult.runProtected(TestResult.java:128) at junit.framework.TestResult.run(TestResult.java:113) at junit.framework.TestCase.run(TestCase.java:124) at com.google.gwt.junit.client.GWTTestCase.run(GWTTestCase.java:296) at junit.framework.TestSuite.runTest(TestSuite.java:232) at junit.framework.TestSuite.run(TestSuite.java:227) at junit.framework.TestSuite.runTest(TestSuite.java:232) at junit.framework.TestSuite.run(TestSuite.java:227) at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.lang.reflect.InvocationTargetException at java.awt.EventQueue.invokeAndWait(EventQueue.java:1055) at com.google.gwt.dev.SwingUI.invokeAndWait(SwingUI.java:397) ... 25 more Caused by: java.lang.NullPointerException at com.google.gwt.dev.SwingUI.loadImageIcon(SwingUI.java:142) at com.google.gwt.dev.SwingUI.loadImageIcon(SwingUI.java:124) at com.google.gwt.dev.SwingUI$3.run(SwingUI.java:247) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:646) at java.awt.EventQueue.access$000(EventQueue.java:84) at java.awt.EventQueue$1.run(EventQueue.java:607) at java.awt.EventQueue$1.run(EventQueue.java:605) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87) at java.awt.EventQueue.dispatchEvent(EventQueue.java:616) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/iKK0NrUI_0IJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
