Github user kinow commented on a diff in the pull request: https://github.com/apache/jena/pull/114#discussion_r184510334 --- Diff: jena-arq/src/main/java/org/apache/jena/sparql/serializer/QuerySerializer.java --- @@ -142,7 +144,19 @@ public void visitAskResultForm(Query query) out.print("ASK") ; out.newline() ; } - + + @Override + public void visitJsonResultForm(Query query) { + out.print("JSON {"); + List<String> terms = new ArrayList<>(); + for (Map.Entry<String, Object> entry : query.getJsonMapping().entrySet()) { --- End diff -- Patch applied! Thanks Andy! TIL learned about that Prologue object. Regarding the indentation, in `QuerySerializer.java`, there are other 2 occurrences of `incIndent`/`decIndent`, but instead of using `4`, they use the class constant `static final int BLOCK_INDENT = 2 ;` Should we use that for JSON as well? Thanks!!!
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