[richfaces-issues] [JBoss JIRA] (RF-10945) TabPanel without any Tab: NullPointerException in AbstractTabPanel.getActiveItem()

TabPanel without any Tab: NullPointerException in AbstractTabPanel.getActiveItem() ---------------------------------------------------------------------------------- Key: RF-10945 URL: https://issues.jboss.org/browse/RF-10945 Project: RichFaces Issue Type: Bug Security Level: Public(Everyone can see) Components: component-panels-layout-themes Affects Versions: 4.0.0.Final Reporter: Lutz Ulrich Fix For: 5-Future Hello, when removing the last UITab child from UITabPanel (via AJAX request) a NullPointerException is thrown by AbstractTabPanel.getActiveItem() when re-rending the UITabPanel: getFirstItem().getName() => cannot work since getFirstItem() returns null There should be no errors when the UITabPanel is empty. I fixed that in my local 'copy' of AbstractTabPanel by checking if getFirstItem() returns null. If it is null, getActiveItem() returns null, too. Seems to work for me. But I didn't do much testing on that, yet. public String getActiveItem() { String res = super.getActiveItem(); if (res == null) { // L. Ulrich, 21.04.2011 // original code //res = getFirstItem().getName(); // fixed code: AbstractTogglePanelItemInterface firstItem = getFirstItem(); if (firstItem != null) { res = firstItem.getName(); } // end of fixed code } else { AbstractTogglePanelTitledItem item = (AbstractTogglePanelTitledItem) super.getItemByIndex(super.getChildIndex(res)); if (item.isDisabled()) { res = getFirstItem().getName(); } } return res; }