diff --git a/commons/src/main/java/org/archive/util/CachedBdbMap.java b/commons/src/main/java/org/archive/util/CachedBdbMap.java
index 2597be9c..0e072e9d 100644
--- a/commons/src/main/java/org/archive/util/CachedBdbMap.java
+++ b/commons/src/main/java/org/archive/util/CachedBdbMap.java
@@ -1116,6 +1116,7 @@ implements ConcurrentMap<K,V>, Serializable {
         this.memMap.clear();
         this.diskMap.clear();
         this.diskMapSize.set(0);
+        //TODO:FIXME: clear should not equal close!
         try {
             close();
         } catch (DatabaseException e) {
diff --git a/engine/src/main/java/org/archive/crawler/datamodel/CrawlURI.java b/engine/src/main/java/org/archive/crawler/datamodel/CrawlURI.java
index c24fa52b..327cfcb1 100644
--- a/engine/src/main/java/org/archive/crawler/datamodel/CrawlURI.java
+++ b/engine/src/main/java/org/archive/crawler/datamodel/CrawlURI.java
@@ -564,6 +564,9 @@ implements ProcessorURI, MultiReporter, Serializable, OverlayContext {
     /**
      * Returns true if this CrawlURI is a prerequisite.
      *
+     * TODO:FIXME: code elsewhere is confused whether this means 
+     * that this CrawlURI is a prerquisite for another, or *has* a 
+     * prequisite; clean up and rename as necessary. 
      * @return true if this CrawlURI is a prerequisite.
      */
     public boolean isPrerequisite() {