--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.7/site-packages/schema_salad/java/main_utils/LoadingOptionsBuilder.java	Sat May 02 07:14:21 2020 -0400
@@ -0,0 +1,62 @@
+package ${package}.utils;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+public class LoadingOptionsBuilder {
+  private Optional<Fetcher> fetcher = Optional.empty();
+  private Optional<String> fileUri = Optional.empty();
+  private Optional<Map<String, String>> namespaces = Optional.empty();
+  private Optional<List<String>> schemas = Optional.empty();
+  private Optional<LoadingOptions> copyFrom = Optional.empty();
+
+  public LoadingOptionsBuilder() {}
+
+  public LoadingOptionsBuilder setFetcher(final Fetcher fetcher) {
+    this.fetcher = Optional.of(fetcher);
+    return this;
+  }
+
+  public LoadingOptionsBuilder copiedFrom(final LoadingOptions copyFrom) {
+    this.copyFrom = Optional.of(copyFrom);
+    return this;
+  }
+
+  public LoadingOptionsBuilder setFileUri(final String fileUri) {
+    this.fileUri = Optional.of(fileUri);
+    return this;
+  }
+
+  public LoadingOptionsBuilder setNamespaces(final Map<String, String> namespaces) {
+    this.namespaces = Optional.of(namespaces);
+    return this;
+  }
+
+  public LoadingOptions build() {
+    Fetcher fetcher = this.fetcher.orElse(null);
+    String fileUri = this.fileUri.orElse(null);
+    List<String> schemas = this.schemas.orElse(null);
+    Map<String, String> namespaces = this.namespaces.orElse(null);
+    Map<String, Map<String, Object>> idx = new HashMap<String, Map<String, Object>>();
+    if (this.copyFrom.isPresent()) {
+      final LoadingOptions copyFrom = this.copyFrom.get();
+      idx = copyFrom.idx;
+      if (fetcher == null) {
+        fetcher = copyFrom.fetcher;
+      }
+      if (fileUri == null) {
+        fileUri = copyFrom.fileUri;
+      }
+      if (namespaces == null) {
+        namespaces = copyFrom.namespaces;
+        schemas = copyFrom.schemas; // Bug in Python codegen?
+      }
+    }
+    if (fetcher == null) {
+      fetcher = new DefaultFetcher();
+    }
+    return new LoadingOptions(fetcher, fileUri, namespaces, schemas, idx);
+  }
+}