diff --git a/compiler/src/main/cpp/capnpc-java.c++ b/compiler/src/main/cpp/capnpc-java.c++
index 104fc0d..f50237e 100644
--- a/compiler/src/main/cpp/capnpc-java.c++
+++ b/compiler/src/main/cpp/capnpc-java.c++
@@ -884,7 +884,38 @@ private:
       };
 
     } else if (kind == FieldKind::STRUCT) {
-      KJ_FAIL_REQUIRE("unimplemented");
+
+      return FieldText {
+        kj::strTree(
+          kj::mv(unionDiscrim.readerIsDecl),
+          spaces(indent), "  public boolean has", titleCase, "() {\n",
+          spaces(indent), "    return !_reader.getPointerField(", offset, ").isNull();\n",
+          spaces(indent), "  }\n",
+
+          spaces(indent), "  public ", type, ".Reader",
+          " get", titleCase, "() {\n",
+          spaces(indent), "    throw new Error();\n",
+          spaces(indent), "  }\n", "\n"),
+
+        kj::strTree(
+          kj::mv(unionDiscrim.builderIsDecl),
+          spaces(indent), "  public final boolean has", titleCase, "() {\n",
+          spaces(indent), "    return !_builder.getPointerField(", offset, ").isNull();\n",
+          spaces(indent), "  }\n",
+          spaces(indent), "  public final ", type, ".Builder get", titleCase, "() {\n",
+          spaces(indent), "    throw new Error();\n",
+          spaces(indent), "  }\n",
+          spaces(indent), "  public final void set", titleCase, "(", type, ".Reader value) {\n",
+          unionDiscrim.set,
+          spaces(indent), "    throw new Error();\n",
+          spaces(indent), "  }\n",
+          spaces(indent), "  public final ", type, ".Builder init", titleCase, "(int size) {\n",
+          spaces(indent), "    throw new Error();\n",
+          spaces(indent), "  }\n"),
+
+        kj::strTree(),
+        kj::strTree()
+      };
 
     } else if (kind == FieldKind::BLOB) {
 
@@ -920,7 +951,6 @@ private:
           spaces(indent), "  }\n"),
 
         kj::strTree(),
-
         kj::strTree()
       };
     } else if (kind == FieldKind::LIST) {
diff --git a/compiler/src/test/scala/org/capnproto/EncodingTest.scala b/compiler/src/test/scala/org/capnproto/EncodingTest.scala
index 9fadfe6..3c46499 100644
--- a/compiler/src/test/scala/org/capnproto/EncodingTest.scala
+++ b/compiler/src/test/scala/org/capnproto/EncodingTest.scala
@@ -6,12 +6,12 @@ import org.scalatest.FunSuite
 
 
 class EncodingSuite extends FunSuite {
+
   test("AllTypes") {
     val message = new MessageBuilder();
     val allTypes = message.initRoot(TestAllTypes.Builder.factory);
-    allTypes.setVoidField();
-    allTypes.setBoolField(true);
-    // ...
+    TestUtil.initTestMessage(allTypes);
+    TestUtil.checkTestMessage(allTypes);
   }
 
 }
diff --git a/compiler/src/test/scala/org/capnproto/TestUtil.scala b/compiler/src/test/scala/org/capnproto/TestUtil.scala
new file mode 100644
index 0000000..1bf9fc1
--- /dev/null
+++ b/compiler/src/test/scala/org/capnproto/TestUtil.scala
@@ -0,0 +1,43 @@
+package org.capnproto;
+
+import org.capnproto.test.Test._;
+
+
+
+object TestUtil {
+  def initTestMessage(builder : TestAllTypes.Builder) {
+    builder.setVoidField();
+    builder.setBoolField(true);
+    builder.setInt8Field(-123);
+    builder.setInt16Field(-12345);
+    builder.setInt32Field(-12345678);
+    builder.setInt64Field(-123456789012345L);
+    builder.setUInt8Field(0xef.toByte);
+    builder.setUInt16Field(0x4567);
+    builder.setUInt32Field(0x34567890);
+    builder.setUInt64Field(0x1234567890123456L);
+    builder.setFloat32Field(1234.5f);
+    builder.setFloat64Field(-123e45);
+    builder.setTextField(new Text.Reader("foo"));
+//    builder.setDataField(data("bar"));
+
+  }
+
+
+  def checkTestMessage(builder : TestAllTypes.Builder) {
+    builder.getVoidField();
+    assert(builder.getBoolField() == true);
+    assert(builder.getInt8Field() == -123);
+    assert(builder.getInt16Field() == -12345);
+    assert(builder.getInt32Field() == -12345678);
+    assert(builder.getInt64Field() == -123456789012345L);
+    assert(builder.getUInt8Field() == 0xef.toByte);
+    assert(builder.getUInt16Field() == 0x4567);
+    assert(builder.getUInt32Field() == 0x34567890);
+    assert(builder.getUInt64Field() == 0x1234567890123456L);
+    assert(builder.getFloat32Field() == 1234.5f);
+    assert(builder.getFloat64Field() == -123e45);
+    //assert(builder.getTextField().toString() == "foo");
+  }
+
+}
diff --git a/compiler/src/test/schema/test.capnp b/compiler/src/test/schema/test.capnp
index 32557e0..524b298 100644
--- a/compiler/src/test/schema/test.capnp
+++ b/compiler/src/test/schema/test.capnp
@@ -30,6 +30,8 @@ struct TestAllTypes {
   float64Field   @11 : Float64;
   textField      @12 : Text;
   dataField      @13 : Data;
+  structField    @14 : TestAllTypes;
+  enumField      @15 : TestEnum;
 # ...
 }