[FEAT] add a spotbug nullable

src/org/kar/archidata/catcher/ConstraintViolationExceptionCatcher.java

@@ -0,0 +1,26 @@
+package org.kar.archidata.catcher;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import jakarta.validation.ConstraintViolationException;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.ext.ExceptionMapper;
+
+public class ConstraintViolationExceptionCatcher implements ExceptionMapper<ConstraintViolationException> {
+	private static final Logger LOGGER = LoggerFactory.getLogger(ConstraintViolationExceptionCatcher.class);
+
+	@Override
+	public Response toResponse(final ConstraintViolationException exception) {
+		LOGGER.warn("Catch ConstraintViolationException: {}", exception.getLocalizedMessage());
+		final RestErrorResponse ret = build(exception);
+		LOGGER.error("Error OID={}", ret.oid);
+		return Response.status(Response.Status.BAD_REQUEST).entity(ret).type(MediaType.APPLICATION_JSON).build();
+	}
+
+	private RestErrorResponse build(final ConstraintViolationException exception) {
+		return new RestErrorResponse(Response.Status.BAD_REQUEST, "Constraint Violation", exception.getMessage());
+	}
+
+}

src/org/kar/archidata/catcher/GenericCatcher.java

@@ -19,6 +19,7 @@ public class GenericCatcher {
 		rc.register(FailExceptionCatcher.class);
 		// generic Exception catcher
 		rc.register(ExceptionCatcher.class);
+		rc.register(ConstraintViolationExceptionCatcher.class);
 	}
 
 }

src/org/kar/archidata/dataAccess/DataAccess.java

@@ -9,6 +9,7 @@ import org.kar.archidata.exception.DataAccessException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import edu.umd.cs.findbugs.annotations.Nullable;
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import jakarta.ws.rs.InternalServerErrorException;
 
@@ -189,6 +190,7 @@ public class DataAccess {
 		}
 	}
 
+	@Nullable
 	public static <T, ID_TYPE> T get(final Class<T> clazz, final ID_TYPE id, final QueryOption... options)
 			throws Exception {
 		try (DBAccess db = DBAccess.createInterface()) {