--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.7/site-packages/schema_salad/java/main_utils/UnionLoader.java	Sat May 02 07:14:21 2020 -0400
@@ -0,0 +1,33 @@
+package ${package}.utils;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class UnionLoader implements Loader<Object> {
+  private final List<Loader> alternates;
+
+  public UnionLoader(List<Loader> alternates) {
+    this.alternates = alternates;
+  }
+
+  public UnionLoader(Loader[] alternates) {
+    this(Arrays.asList(alternates));
+  }
+
+  public Object load(
+      final Object doc,
+      final String baseUri,
+      final LoadingOptions loadingOptions,
+      final String docRoot) {
+    final List<ValidationException> errors = new ArrayList();
+    for (final Loader loader : this.alternates) {
+      try {
+        return loader.load(doc, baseUri, loadingOptions, docRoot);
+      } catch (ValidationException e) {
+        errors.add(e);
+      }
+    }
+    throw new ValidationException("Failed to match union type", errors);
+  }
+}