public void closeProject(boolean delNode) { BTreeNode node = (BTreeNode) tree.getLastSelectedPathComponent(); if (node != null) { BTreeNode parent = (BTreeNode) (node.getParent()); if (node.isLeaf()) { BElement dKey = node.getKey(); if (develop.get(dKey) != null) { develop.get(dKey).close(); develop.remove(dKey); tree.removeSelectionPath(tree.getSelectionPath()); } if ((delNode) && (parent != null)) { int n = JOptionPane.showConfirmDialog( treePanel, "Are you sure you want to delete the project?", "Project Deletion", JOptionPane.YES_NO_OPTION); if (n == 0) { treemodel.removeNodeFromParent(node); root.delNode(dKey); Bio io = new Bio(); io.saveFile(configDir + "config.xml", root.toString()); log.info("Project deleted"); } } } } else { log.info("Select a project first"); } }