Add support for .equals() to Java structs.

- Add a new method to t_java_generator that generates a .equals() method.
- Add a correct but useless implementation of hashCode for structs.
  (This is required by conventino when overriding .equals().)
- Add java_package to DebugProtoTest and OptionalRequiredTest.
- Add a new structure to OptionalRequiredTest to assist testing the behavior
  of .equals() with respect to null and unset fields.
- Clean up test/java/build.xml a bit.  (It still has a ways to go.)
- Add EqualityTest.java to test .equals().
- Add IdentityTest.java to test that writing and reading a structure
  preserves equality.

Tested by runnint atn test.
I also looked at the generated code for OptionalRequiredTest.thrift.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665541 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/test/java/src/EqualityTest.java b/test/java/src/EqualityTest.java
new file mode 100644
index 0000000..8bdba2c
--- /dev/null
+++ b/test/java/src/EqualityTest.java
@@ -0,0 +1,1808 @@
+/*
+This program was generated by the following Python script:
+
+#!/usr/bin/python2.5
+
+# Remove this when Python 2.6 hits the streets.
+from __future__ import with_statement
+
+import sys
+import os.path
+
+
+# Quines the easy way.
+with open(sys.argv[0], 'r') as handle:
+  source = handle.read()
+
+with open(os.path.join(os.path.dirname(sys.argv[0]), 'EqualityTest.java'), 'w') as out:
+  print >> out, "/""*"
+  print >> out, "This program was generated by the following Python script:"
+  print >> out
+  out.write(source)
+  print >> out, "*""/"
+
+  print >> out, r'''
+package com.facebook.thrift.test;
+
+// Generated code
+import thrift.test.*;
+
+/'''r'''**
+ * @author David Reiss <dreiss@facebook.com>
+ *'''r'''/
+public class EqualityTest {
+  public static void main(String[] args) throws Exception {
+    JavaTestHelper lhs, rhs;
+'''
+
+  vals = {
+    'int': ("1", "2"),
+    'obj': ("\"foo\"", "\"bar\""),
+    'bin': ("new byte[]{1,2}", "new byte[]{3,4}"),
+  }
+  matrix = (
+    (False,False),
+    (False,True ),
+    (True ,False),
+    (True ,True ),
+  )
+
+  for type in ('int', 'obj', 'bin'):
+    for option in ('req', 'opt'):
+      nulls = matrix[0:1] if type == 'int' else matrix[-1::-1]
+      issets = matrix
+      for is_null in nulls:
+        for is_set in issets:
+          for equal in (True, False):
+            print >> out
+            print >> out, "    lhs = new JavaTestHelper();"
+            print >> out, "    rhs = new JavaTestHelper();"
+            print >> out, "    lhs." + option + "_" + type, "=", vals[type][0] + ";"
+            print >> out, "    rhs." + option + "_" + type, "=", vals[type][0 if equal else 1] + ";"
+            if (is_set[0]): print >> out, "    lhs.__isset." + option + "_" + type, "= true;"
+            if (is_set[1]): print >> out, "    rhs.__isset." + option + "_" + type, "= true;"
+            if (is_null[0]): print >> out, "    lhs." + option + "_" + type, "= null;"
+            if (is_null[1]): print >> out, "    rhs." + option + "_" + type, "= null;"
+            this_present = not is_null[0] and (option == 'req' or is_set[0])
+            that_present = not is_null[1] and (option == 'req' or is_set[1])
+            print >> out, "    // this_present = " + repr(this_present)
+            print >> out, "    // that_present = " + repr(that_present)
+            is_equal = \
+                (not this_present and not that_present) or \
+                (this_present and that_present and equal)
+            eq_str = 'true' if is_equal else 'false'
+
+            print >> out, "    if (lhs.equals(rhs) != "+eq_str+")"
+            print >> out, "      throw new RuntimeException(\"Failure\");"
+            if is_equal:
+              print >> out, "    if (lhs.hashCode() != rhs.hashCode())"
+              print >> out, "      throw new RuntimeException(\"Failure\");"
+
+  print >> out, r'''
+  }
+}
+'''
+*/
+
+package com.facebook.thrift.test;
+
+// Generated code
+import thrift.test.*;
+
+/**
+ * @author David Reiss <dreiss@facebook.com>
+ */
+public class EqualityTest {
+  public static void main(String[] args) throws Exception {
+    JavaTestHelper lhs, rhs;
+
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_int = 1;
+    rhs.req_int = 1;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_int = 1;
+    rhs.req_int = 2;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_int = 1;
+    rhs.req_int = 1;
+    rhs.__isset.req_int = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_int = 1;
+    rhs.req_int = 2;
+    rhs.__isset.req_int = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_int = 1;
+    rhs.req_int = 1;
+    lhs.__isset.req_int = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_int = 1;
+    rhs.req_int = 2;
+    lhs.__isset.req_int = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_int = 1;
+    rhs.req_int = 1;
+    lhs.__isset.req_int = true;
+    rhs.__isset.req_int = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_int = 1;
+    rhs.req_int = 2;
+    lhs.__isset.req_int = true;
+    rhs.__isset.req_int = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_int = 1;
+    rhs.opt_int = 1;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_int = 1;
+    rhs.opt_int = 2;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_int = 1;
+    rhs.opt_int = 1;
+    rhs.__isset.opt_int = true;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_int = 1;
+    rhs.opt_int = 2;
+    rhs.__isset.opt_int = true;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_int = 1;
+    rhs.opt_int = 1;
+    lhs.__isset.opt_int = true;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_int = 1;
+    rhs.opt_int = 2;
+    lhs.__isset.opt_int = true;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_int = 1;
+    rhs.opt_int = 1;
+    lhs.__isset.opt_int = true;
+    rhs.__isset.opt_int = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_int = 1;
+    rhs.opt_int = 2;
+    lhs.__isset.opt_int = true;
+    rhs.__isset.opt_int = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.req_obj = null;
+    rhs.req_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.req_obj = null;
+    rhs.req_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    rhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    rhs.req_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    rhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    rhs.req_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    rhs.req_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    rhs.req_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.__isset.req_obj = true;
+    rhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    rhs.req_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.__isset.req_obj = true;
+    rhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    rhs.req_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.req_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.req_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    rhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    rhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.__isset.req_obj = true;
+    rhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.__isset.req_obj = true;
+    rhs.__isset.req_obj = true;
+    lhs.req_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    rhs.req_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    rhs.req_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    rhs.__isset.req_obj = true;
+    rhs.req_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    rhs.__isset.req_obj = true;
+    rhs.req_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.__isset.req_obj = true;
+    rhs.req_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.__isset.req_obj = true;
+    rhs.req_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.__isset.req_obj = true;
+    rhs.__isset.req_obj = true;
+    rhs.req_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.__isset.req_obj = true;
+    rhs.__isset.req_obj = true;
+    rhs.req_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    rhs.__isset.req_obj = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    rhs.__isset.req_obj = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.__isset.req_obj = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.__isset.req_obj = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "foo";
+    lhs.__isset.req_obj = true;
+    rhs.__isset.req_obj = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_obj = "foo";
+    rhs.req_obj = "bar";
+    lhs.__isset.req_obj = true;
+    rhs.__isset.req_obj = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.opt_obj = null;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.opt_obj = null;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    rhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    rhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.__isset.opt_obj = true;
+    rhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.__isset.opt_obj = true;
+    rhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    rhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    rhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.__isset.opt_obj = true;
+    rhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.__isset.opt_obj = true;
+    rhs.__isset.opt_obj = true;
+    lhs.opt_obj = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    rhs.__isset.opt_obj = true;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    rhs.__isset.opt_obj = true;
+    rhs.opt_obj = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.__isset.opt_obj = true;
+    rhs.opt_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.__isset.opt_obj = true;
+    rhs.opt_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.__isset.opt_obj = true;
+    rhs.__isset.opt_obj = true;
+    rhs.opt_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.__isset.opt_obj = true;
+    rhs.__isset.opt_obj = true;
+    rhs.opt_obj = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    rhs.__isset.opt_obj = true;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    rhs.__isset.opt_obj = true;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.__isset.opt_obj = true;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.__isset.opt_obj = true;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "foo";
+    lhs.__isset.opt_obj = true;
+    rhs.__isset.opt_obj = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_obj = "foo";
+    rhs.opt_obj = "bar";
+    lhs.__isset.opt_obj = true;
+    rhs.__isset.opt_obj = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.req_bin = null;
+    rhs.req_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.req_bin = null;
+    rhs.req_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    rhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    rhs.req_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    rhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    rhs.req_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    rhs.req_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    rhs.req_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.__isset.req_bin = true;
+    rhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    rhs.req_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.__isset.req_bin = true;
+    rhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    rhs.req_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.req_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.req_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    rhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    rhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.__isset.req_bin = true;
+    rhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.__isset.req_bin = true;
+    rhs.__isset.req_bin = true;
+    lhs.req_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    rhs.req_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    rhs.__isset.req_bin = true;
+    rhs.req_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    rhs.__isset.req_bin = true;
+    rhs.req_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.__isset.req_bin = true;
+    rhs.req_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.__isset.req_bin = true;
+    rhs.req_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.__isset.req_bin = true;
+    rhs.__isset.req_bin = true;
+    rhs.req_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.__isset.req_bin = true;
+    rhs.__isset.req_bin = true;
+    rhs.req_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    rhs.__isset.req_bin = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    rhs.__isset.req_bin = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.__isset.req_bin = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.__isset.req_bin = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{1,2};
+    lhs.__isset.req_bin = true;
+    rhs.__isset.req_bin = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.req_bin = new byte[]{1,2};
+    rhs.req_bin = new byte[]{3,4};
+    lhs.__isset.req_bin = true;
+    rhs.__isset.req_bin = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.opt_bin = null;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.opt_bin = null;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    rhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    rhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.__isset.opt_bin = true;
+    rhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.__isset.opt_bin = true;
+    rhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    rhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    rhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.__isset.opt_bin = true;
+    rhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.__isset.opt_bin = true;
+    rhs.__isset.opt_bin = true;
+    lhs.opt_bin = null;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    rhs.__isset.opt_bin = true;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    rhs.__isset.opt_bin = true;
+    rhs.opt_bin = null;
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.__isset.opt_bin = true;
+    rhs.opt_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.__isset.opt_bin = true;
+    rhs.opt_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.__isset.opt_bin = true;
+    rhs.__isset.opt_bin = true;
+    rhs.opt_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.__isset.opt_bin = true;
+    rhs.__isset.opt_bin = true;
+    rhs.opt_bin = null;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    // this_present = False
+    // that_present = False
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    rhs.__isset.opt_bin = true;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    rhs.__isset.opt_bin = true;
+    // this_present = False
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.__isset.opt_bin = true;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.__isset.opt_bin = true;
+    // this_present = True
+    // that_present = False
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{1,2};
+    lhs.__isset.opt_bin = true;
+    rhs.__isset.opt_bin = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != true)
+      throw new RuntimeException("Failure");
+    if (lhs.hashCode() != rhs.hashCode())
+      throw new RuntimeException("Failure");
+
+    lhs = new JavaTestHelper();
+    rhs = new JavaTestHelper();
+    lhs.opt_bin = new byte[]{1,2};
+    rhs.opt_bin = new byte[]{3,4};
+    lhs.__isset.opt_bin = true;
+    rhs.__isset.opt_bin = true;
+    // this_present = True
+    // that_present = True
+    if (lhs.equals(rhs) != false)
+      throw new RuntimeException("Failure");
+
+  }
+}
+