NullPointerException when creating new screen ins Studio 7.1

Support
#1

Hello CUBA Team,

when I create a new screen in Studio 7.1. I always get a NullPointerException:

java.lang.NullPointerException
	at com.haulmont.studio.backend.util.intellij.CubaModuleManager.getModule(SourceFile:60)
	at com.haulmont.studio.backend.util.intellij.CubaModuleManager.getModuleMain(SourceFile:40)
	at com.haulmont.studio.backend.util.intellij.CubaModuleManager.getCorrespondingMainModule(SourceFile:103)
	at com.haulmont.studio.intellij.action.creation.template.cuba.ScreenCreationForm.addModuleFieldIfNeeded(SourceFile:264)
	at com.haulmont.studio.intellij.action.creation.template.cuba.ScreenCreationForm.init(SourceFile:96)
	at com.haulmont.studio.intellij.action.creation.template.BaseTemplateCreationForm$Builder.build(SourceFile:357)
	at com.haulmont.studio.intellij.action.creation.template.cuba.CubaScreensGroup.lambda$createElements$0(SourceFile:75)
	at com.intellij.util.containers.FactoryMap$3.create(FactoryMap.java:201)
	at com.intellij.util.containers.FactoryMap.get(FactoryMap.java:65)
	at com.haulmont.studio.intellij.action.creation.template.TemplateSettingsStep._init(SourceFile:29)
	at com.intellij.ide.wizard.AbstractWizard.updateStep(AbstractWizard.java:459)
	at com.intellij.ide.wizard.AbstractWizard.updateStep(AbstractWizard.java:387)
	at com.intellij.ide.wizard.AbstractWizard.doNextAction(AbstractWizard.java:411)
	at com.haulmont.studio.intellij.action.creation.template.CreateFromTemplateWizard.doNextAction(SourceFile:57)
	at com.intellij.ide.wizard.AbstractWizard$5.actionPerformed(AbstractWizard.java:208)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
	at java.awt.Component.processMouseEvent(Component.java:6548)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3325)
	at java.awt.Component.processEvent(Component.java:6313)
	at java.awt.Container.processEvent(Container.java:2237)
	at java.awt.Component.dispatchEventImpl(Component.java:4903)
	at java.awt.Container.dispatchEventImpl(Container.java:2295)
	at java.awt.Component.dispatchEvent(Component.java:4725)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4889)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4526)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4467)
	at java.awt.Container.dispatchEventImpl(Container.java:2281)
	at java.awt.Window.dispatchEventImpl(Window.java:2746)
	at java.awt.Component.dispatchEvent(Component.java:4725)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764)
	at java.awt.EventQueue.access$500(EventQueue.java:98)
	at java.awt.EventQueue$3.run(EventQueue.java:715)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
	at java.awt.EventQueue$4.run(EventQueue.java:737)
	at java.awt.EventQueue$4.run(EventQueue.java:735)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:734)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:719)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:664)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:363)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:109)
	at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:190)
	at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:235)
	at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:233)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:233)
	at java.awt.Dialog.show(Dialog.java:1077)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl$MyDialog.show(DialogWrapperPeerImpl.java:698)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.show(DialogWrapperPeerImpl.java:430)
	at com.intellij.openapi.ui.DialogWrapper.invokeShow(DialogWrapper.java:1681)
	at com.intellij.openapi.ui.DialogWrapper.show(DialogWrapper.java:1630)
	at com.intellij.openapi.ui.DialogWrapper.showAndGet(DialogWrapper.java:1645)
	at com.haulmont.studio.intellij.action.creation.template.cuba.CubaScreensGroup.createElements(SourceFile:78)
	at com.haulmont.studio.intellij.action.CubaElementCreationAction.doActionPerformed(SourceFile:50)
	at com.haulmont.studio.intellij.action.CubaProjectAction.actionPerformed(SourceFile:80)
	at com.intellij.openapi.actionSystem.ex.ActionUtil$1.run(ActionUtil.java:258)
	at com.intellij.openapi.application.TransactionGuardImpl.runSyncTransaction(TransactionGuardImpl.java:88)
	at com.intellij.openapi.application.TransactionGuardImpl.submitTransactionAndWait(TransactionGuardImpl.java:153)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAware(ActionUtil.java:273)
	at com.intellij.openapi.actionSystem.impl.ActionMenuItem$ActionTransmitter.lambda$actionPerformed$0(ActionMenuItem.java:287)
	at com.intellij.openapi.wm.impl.FocusManagerImpl.runOnOwnContext(FocusManagerImpl.java:283)
	at com.intellij.openapi.wm.impl.IdeFocusManagerImpl.runOnOwnContext(IdeFocusManagerImpl.java:106)
	at com.intellij.openapi.actionSystem.impl.ActionMenuItem$ActionTransmitter.actionPerformed(ActionMenuItem.java:277)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
	at com.intellij.openapi.actionSystem.impl.ActionMenuItem.lambda$fireActionPerformed$0(ActionMenuItem.java:111)
	at com.intellij.openapi.application.TransactionGuardImpl.runSyncTransaction(TransactionGuardImpl.java:88)
	at com.intellij.openapi.application.TransactionGuardImpl.lambda$submitTransaction$1(TransactionGuardImpl.java:111)
	at com.intellij.openapi.application.TransactionGuardImpl.submitTransaction(TransactionGuardImpl.java:120)
	at com.intellij.openapi.application.TransactionGuard.submitTransaction(TransactionGuard.java:122)
	at com.intellij.openapi.actionSystem.impl.ActionMenuItem.fireActionPerformed(ActionMenuItem.java:111)
	at com.intellij.ui.plaf.beg.BegMenuItemUI.doClick(BegMenuItemUI.java:522)
	at com.intellij.ui.plaf.beg.BegMenuItemUI.access$300(BegMenuItemUI.java:35)
	at com.intellij.ui.plaf.beg.BegMenuItemUI$MyMouseInputHandler.mouseReleased(BegMenuItemUI.java:544)
	at java.awt.Component.processMouseEvent(Component.java:6548)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3325)
	at java.awt.Component.processEvent(Component.java:6313)
	at java.awt.Container.processEvent(Container.java:2237)
	at java.awt.Component.dispatchEventImpl(Component.java:4903)
	at java.awt.Container.dispatchEventImpl(Container.java:2295)
	at java.awt.Component.dispatchEvent(Component.java:4725)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4889)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4526)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4467)
	at java.awt.Container.dispatchEventImpl(Container.java:2281)
	at java.awt.Window.dispatchEventImpl(Window.java:2746)
	at java.awt.Component.dispatchEvent(Component.java:4725)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764)
	at java.awt.EventQueue.access$500(EventQueue.java:98)
	at java.awt.EventQueue$3.run(EventQueue.java:715)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
	at java.awt.EventQueue$4.run(EventQueue.java:737)
	at java.awt.EventQueue$4.run(EventQueue.java:735)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:734)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:719)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:664)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:363)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Greetings,
Andreas

1 Like
#3

Hello. Unfortunately, we can not reproduce the problem. Can you please provide more information about the problem or attach the small demo project?

#4

Hi,

here the steps to reproduce the problem:

  1. Download sample-sales-master from GitHub - cuba-platform/sample-sales: Sample application from the Quick Start tutorial for CUBA 6.10 and unpack in StudioProjects
  2. CUBA-Studio → File → New → Project from existing source
  3. Select unpacked sample-sales-master → OK
  4. Option “Create project from existing source” → Next
  5. Leave project name, location and format with default values → Next
  6. Default value (all directories checked) → Next
  7. Next
  8. Next
  9. Default SDK (1.8.0_201) → Next
  10. Import Gradle project
  11. Check “Use auto-import” → OK
  12. Dialog “Migration Required” → Continue (Message “Module prefix migration skipped. Some functionality will be unavailable.” in Eventlog)
  13. In CUBA-Tree select Generic-UI → Screens
  14. Open context menu → New → Screen
  15. Select “Login Window” → Next

Then in the right bottom corner a red exclamation mark flashes and you have the error.

My system

  • Windows 10
  • CUBA Studio 7.2

Greetings,
Andreas

1 Like
#5

Sorry, but we can’t reproduce the problem by described steps to reproduce. Can you please attach the small demo project where this situation happens?

#6

Hi,

here the project: cuba7-sales6.zip (183.5 KB)

Greetings,
Andreas

#7

Try to remove .idea folder and import your project again.

#8

I tried, but the problem still exists. :frowning:

#9

Hi Andreas!

How do you import the project? Try Import Project action from Welcome screen, or File -> New -> Project from Existing Sources... -> Choose project directory -> OK -> Import project from external model -> CUBA -> …

#10

Hi,

in the Dialog “Import poject from external model” I only have Eclipse, Gradle and Maven as option, not CUBA. :frowning:.

Greetings,
Andreas

#11

Try to use Gradle option.

1 Like
#12

Hey, this works! :smile:

After importing the application with Import Project action from Welcome screen, or File -> New -> Project from Existing Sources... -> Choose project directory -> OK -> Import project from external model -> Gradle -> … I can create new screens without errors.

Thanks
Andreas