vaadin/framework

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Vaadin 6, 7, 8 is a Java framework for modern Java web applications.

Stars: 1.8k
Forks: 717
Open beginner issues: 0
Indexed issues: 390
Avg merge: 2d 6h
Merged PRs (30d): 3

Dominant language: Java
License: No license data
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue

Beginner friendly Everything

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390 open issues indexed

Vaadin 8.30.0 com.google.gwt.event.dom.client is indirectly referenced from required .class files Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

vaadin/framework#12668 · 1 comment · Opened Jan 22, 2026
Component in grid header is not displayed correctly Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

vaadin/framework#12622 · 5 comments · Opened May 23, 2024
ComboBox with item filtering and a selected item will not open the popup to display the currently selected item Open

bug

vaadin/framework#12616 · 1 assignee · Opened Apr 24, 2024
Grid component layout fix introduced in 8.25.0 can cause slowdown Open

enhancement

vaadin/framework#12615 · 1 comment · 1 assignee · Opened Apr 24, 2024
GridLayout's initial render causes component overlap Open

bug

vaadin/framework#12614 · 1 assignee · Opened Apr 24, 2024
Layout issue with TwinColSelect within initially open Window on the very first load (Firefox) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#12602 · Opened Jan 17, 2024
getContentDispositionFilename uses encodedFilename in both parameters where decoded one should be used Open

Difficulty 1/5 Under an hour Newbie friendliness 55/100

vaadin/framework#12591 · Opened Jul 13, 2023
Tabsheet scroller should scroll continuously while pressing the mouse button down Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#12568 · 1 comment · Opened Jan 2, 2023
Jakarta / Servlet 6 Support for Extended Maintenance Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

vaadin/framework#12566 · 8 comments · Opened Dec 21, 2022
java.lang.AssertionError: null in ConnectorTracker Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#12565 · 12 comments · Opened Dec 12, 2022
Firefox does not retain browser's scroll position when switching tab in TabSheet Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 42/100

vaadin/framework#12551 · 1 comment · Opened Aug 23, 2022
The Same order in Query Parameters as in URL Open

question

Difficulty 4/5 3-5 days Newbie friendliness 28/100

vaadin/framework#12544 · 1 comment · Opened Jul 5, 2022
ProductionMode in Annotations with Vaadin 8 OSGi Liferay portlet Open

documentation question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#12543 · 1 comment · Opened Jun 22, 2022
Overlapping components in GridLayout with Firefox Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#12540 · 1 comment · Opened Jun 3, 2022
Vaadin 8.14.3 platform build instructions, or any forked projects to keep it secure now that it's no longer open source Open

question

Difficulty 5/5 Over a week Newbie friendliness 20/100

vaadin/framework#12533 · 29 comments · Opened Apr 8, 2022
Invisible components break grid editor Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

vaadin/framework#12527 · 3 comments · Opened Mar 7, 2022
Failing non-OSGi portlets on Liferay CE 7.4.3.5 GA5 or later Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

vaadin/framework#12505 · 3 comments · Opened Jan 7, 2022
Vaadin 7,8 pdf not show windows11+ Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

vaadin/framework#12501 · 2 comments · Opened Dec 16, 2021
Investigate the failure with CriticalNotificationsTest (V7) Open

v7

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#12410 · Opened Sep 24, 2021
Theme/Widgetset compilation fails in Eclipse, JDK17 Open

question

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

vaadin/framework#12404 · 3 comments · Opened Sep 16, 2021
NamespaceException thrown with OSGi application when using Karaf 4.2 Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

vaadin/framework#12396 · 8 comments · Opened Sep 8, 2021
Page starts scrolling when grid scrolling reaches end of grid Open

Stale

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#12345 · 1 comment · Opened Jul 20, 2021
AbstractClientConnector violates basic Java contract of equals and hashcode and therefore should be replaced Open

Stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#12329 · 2 comments · Opened Jun 28, 2021
VBrowserDetails.isEdge() doesn't work for all cases anymore Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#12321 · 1 comment · Opened Jun 9, 2021
can one right align components in a HorizontalLayout component cell of a TreeGrid component column? Open

enhancement workaround

Difficulty 3/5 1-2 days Newbie friendliness 38/100

vaadin/framework#12319 · 3 comments · Opened Jun 1, 2021
JavaScript NULL Pointer Exception if function not exist Open

Stale

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#12245 · 1 comment · Opened Mar 16, 2021
Feature request: Capability to set initial sort direction for Grid column Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#12217 · 2 comments · 1 reaction · Opened Mar 5, 2021
Should support for css scaling be extended to content with overlays? Open

enhancement question

Difficulty 5/5 Over a week Newbie friendliness 25/100

vaadin/framework#12173 · Opened Dec 16, 2020
VScrollTable pagelength is set to 0 when table has size lower than displaying 1 row completely breaking lazy loading Open

Stale v7

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

vaadin/framework#12171 · 3 comments · Opened Dec 7, 2020
CombBox is loading data twice Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 42/100

vaadin/framework#12155 · Opened Nov 30, 2020
Add the 'eye' icon to PasswordField, to be able to reveal the password Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#12146 · 1 comment · Opened Nov 6, 2020
[Feature] Implement Configurable XHR Request Timeout in com.vaadin.client.communication.XhrConnection Vaadin 8 Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#12123 · 1 comment · 2 reactions · Opened Oct 14, 2020
GlobalResourceHandler not cleaned up when UI gets detached Open

Stale workaround

Difficulty 3/5 1-2 days Newbie friendliness 45/100

vaadin/framework#12094 · 3 comments · Opened Sep 4, 2020
Value change event with userOriginated true is sent when a DateTime is truncated Open

Stale workaround

Difficulty 3/5 1-2 days Newbie friendliness 38/100

vaadin/framework#12054 · 1 comment · Opened Jul 10, 2020
Tutorial: Creating a Project with IntelliJ IDEA: Error: could not transfer metadata from org.apache.maven.plugins Open

Stale

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

vaadin/framework#12038 · 1 comment · Opened Jun 18, 2020
Doubleclick on buttons may open window twice Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

vaadin/framework#11853 · 11 comments · Opened Dec 19, 2019
ComboBox placeholder not visible Open

question Stale

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

vaadin/framework#11837 · 5 comments · Opened Dec 4, 2019
Deprecate MultiSelectionEvent.getNewSelection Open

Help wanted Stale

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

vaadin/framework#11756 · 1 comment · 1 reaction · Opened Oct 23, 2019
[Grid] horizontal scrollbar doesn't change its state when a component within a column is focused programmatically Open

duplicate Stale

Difficulty 3/5 1-2 days Newbie friendliness 38/100

vaadin/framework#11754 · 4 comments · Opened Oct 22, 2019
Delete button on grid causes NullPointerException Open

duplicate Stale workaround

Difficulty 3/5 1-2 days Newbie friendliness 45/100

vaadin/framework#11750 · 3 comments · Opened Oct 18, 2019
Grid cant show initially expanded nested grids Open

Stale v7

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#11744 · 1 comment · Opened Oct 9, 2019
Unexpected value change event in DateField with MONTH resolution Open

Stale

Difficulty 3/5 1-2 days Newbie friendliness 30/100

vaadin/framework#11729 · 2 comments · Opened Sep 23, 2019
Add API for setting a custom style name to Grid Editor Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#11724 · Opened Sep 17, 2019
Binder with DateField is not persisting null values after validation error Open

Stale

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#11723 · 8 comments · Opened Sep 16, 2019
Cannot scroll ListSelect in read only mode Open

Stale workaround

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#11708 · 3 comments · Opened Sep 4, 2019
Vaadin 8, Window opened with undefined height gets scrolled to the top on each poll Open

bug Stale

Difficulty 3/5 1-2 days Newbie friendliness 35/100

vaadin/framework#11705 · 8 comments · Opened Sep 1, 2019
TreeGrid: a bit inconsistent click handling with details row. Open

Stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#11700 · 1 comment · Opened Aug 28, 2019
Grid does not scroll vertically when dragging rows near the top or the bottom of the grid Open

enhancement workaround

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#11695 · 1 comment · Opened Aug 16, 2019
Replacing screenshot tests with sensible code tests Open

Epic Stale

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#11685 · 4 comments · Opened Aug 2, 2019
TreeGrid unexpected NullPointerException on unknown rowkey Open

Stale workaround

Difficulty 4/5 3-5 days Newbie friendliness 35/100

vaadin/framework#11662 · 2 comments · Opened Jul 19, 2019

vaadin/framework

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