#1998 Scripts (or any other) folder create fix

plugins/org.jkiss.dbeaver.core/src/org/jkiss/dbeaver/registry/ResourceHandlerDescriptor.java

@@ -184,8 +184,13 @@ public class ResourceHandlerDescriptor extends AbstractDescriptor
 
     public String getDefaultRoot(IProject project)
     {
-        IEclipsePreferences resourceHandlers = ProjectRegistry.getResourceHandlerPreferences(project, ProjectRegistry.RESOURCE_ROOT_FOLDER_NODE);
-        return resourceHandlers.get(id, defaultRoot);
+        try {
+            IEclipsePreferences resourceHandlers = ProjectRegistry.getResourceHandlerPreferences(project, ProjectRegistry.RESOURCE_ROOT_FOLDER_NODE);
+            return resourceHandlers.get(id, defaultRoot);
+        } catch (Exception e) {
+            log.error("Can't obtain resource handler preferences", e);
+            return null;
+        }
     }
 
     public List<String> getRoots()

plugins/org.jkiss.dbeaver.core/src/org/jkiss/dbeaver/ui/resources/ResourceUtils.java

@@ -154,6 +154,9 @@ public class ResourceUtils {
 
     private static void findScriptList(IFolder folder, @Nullable DBPDataSourceContainer container, List<ResourceInfo> result)
     {
+        if (folder == null) {
+            return;
+        }
         try {
             // Search in project scripts
             for (IResource resource : folder.members()) {

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/navigator/DBNResource.java

@@ -363,11 +363,15 @@ public class DBNResource extends DBNNode// implements IContributorResourceAdapte
         throws DBException
     {
         if (resource instanceof IFolder) {
-            IFolder newFolder = ((IFolder) resource).getFolder(folderName);
-            if (newFolder.exists()) {
-                throw new DBException("Folder '" + folderName + "' already exists in '" + resource.getFullPath().toString() + "'");
-            }
             try {
+                IFolder parentFolder = (IFolder) resource;
+                if (!parentFolder.exists()) {
+                    parentFolder.create(true, true, new NullProgressMonitor());
+                }
+                IFolder newFolder = parentFolder.getFolder(folderName);
+                if (newFolder.exists()) {
+                    throw new DBException("Folder '" + folderName + "' already exists in '" + resource.getFullPath().toString() + "'");
+                }
                 newFolder.create(true, true, new NullProgressMonitor());
             } catch (CoreException e) {
                 throw new DBException("Can't create new folder", e);