checking-if-list-is-null (#381)

Author: cx-hitesh-madgulkar

src/main/java/com/checkmarx/intellij/tool/window/actions/selection/ProjectSelectionGroup.java

@@ -72,7 +72,8 @@ private void populate(boolean inherit) {
         setEnabled(false);
         CompletableFuture.supplyAsync((Supplier<List<com.checkmarx.ast.project.Project>>) () -> {
             try {
-                return com.checkmarx.intellij.commands.Project.getList();
+                List<com.checkmarx.ast.project.Project> list = com.checkmarx.intellij.commands.Project.getList();
+                return list != null ? list : Collections.emptyList();
             } catch (Exception e) {
                 LOGGER.warn(e);
             }