wip

Author: Aklakan

jena-arq/src/main/java/org/apache/jena/sparql/core/Quad.java

@@ -97,7 +97,7 @@ public Triple asTriple() {
     }
 
     public boolean isConcrete() {
-        return subject.isConcrete() && predicate.isConcrete() && object.isConcrete() && graph.isConcrete();
+        return subject.isConcrete() && predicate.isConcrete() && object.isConcrete() && (graph == null || graph.isConcrete());
     }
 
     /**

jena-arq/src/main/java/org/apache/jena/sparql/engine/dispatch/DatasetGraphOverSparql.java

@@ -403,7 +403,7 @@ private static Quad matchQuad(Node g, Node s, Node p, Node o) {
     /**
      * Generates the query:
      * <pre>
-     * SELECT ?g ?s ?p ?o {
+     * SELECT * {
      *     { ?s ?p ?o }
      *   UNION
      *     { GRAPH ?g { ?s ?p ?o } }

jena-arq/src/main/java/org/apache/jena/sparql/exec/tracker/BasicTaskInfo.java

@@ -45,8 +45,8 @@ public interface BasicTaskInfo {
     String getStatusMessage();
 
     /**
-     * If this method returns a non-null result then the task is considered to have failed.
-     * A non-null result does not imply that the task is already in TERMINATED state.
+     * If this method returns a non-null result then the task is considered to be failing or to have failed.
+     * A non-null result does not imply that the task has already reached TERMINATED state.
      */
     Throwable getThrowable();
 
@@ -59,5 +59,4 @@ default boolean isTerminated() {
         TaskState state = getTaskState();
         return TaskState.TERMINATED.equals(state);
     }
-
 }