fix (core): Fix subtle bug in WritableResourceRDFHandler which appear…

…ed during RDF4j 5.0.1 to 5.0.2 upgrade

Related to eclipse-rdf4j/rdf4j#5096.

java/dev/enola/core/rosetta/RosettaTest.java

@@ -33,6 +33,7 @@
 import dev.enola.common.io.resource.MemoryResource;
 import dev.enola.common.io.resource.ResourceProvider;
 import dev.enola.common.io.resource.StringResource;
+import dev.enola.common.yamljson.JSON;
 import dev.enola.rdf.io.RdfLoader;
 import dev.enola.rdf.io.RdfMediaTypes;
 import dev.enola.thing.Thing;
@@ -134,6 +135,16 @@ public void testJsonToTurtle() throws Exception {
  assertThat(out.charSource().read()).contains("firstName> \"Salvador\"");
  }
 
+ @Test
+ public void testJsonToJsonld() throws Exception {
+ var in = rp.get("classpath:/picasso.json?context=classpath:/picasso-context.jsonld");
+ var out = new MemoryResource(RdfMediaTypes.JSON_LD);
+ rosetta.convertInto(in, out);
+ // This is to detect invalid JSON, which happened during the RDF4j 5.0.1 to 5.0.2 upgrade
+ JSON.readObject(out.charSource().read());
+ assertThat(out.charSource().read()).contains("firstName");
+ }
+
  @Test
  public void testYamlToTurtle() throws Exception {
  var in = rp.get("classpath:/picasso.yaml?context=classpath:/picasso-context.jsonld");

java/dev/enola/rdf/io/WritableResourceRDFHandler.java

@@ -67,7 +67,7 @@ private WritableResourceRDFHandler(RDFWriter rdfWriter, Writer ioWriter)
 
  @Override
  public void close() throws IOException {
- endRDF();
+ rdfWriter.endRDF();
  ioWriter.close();
  }
 
@@ -78,7 +78,7 @@ public void startRDF() throws RDFHandlerException {
 
  @Override
  public void endRDF() throws RDFHandlerException {
- rdfWriter.endRDF();
+ // SUPPRESS rdfWriter.endRDF();
  }
 
  @Override