Remove use of Objects helper class.

io/src/main/java/retrofit/internal/Objects.java

-// Copyright 2010 Square, Inc.
-package retrofit.internal;
-
-/**
- * Object utility methods.
- *
- * @author Bob Lee (bob@squareup.com)
- */
-public class Objects {
-
-  /**
-   * Returns t unless it's null.
-   *
-   * @throws NullPointerException if t is null
-   */
-  public static <T> T nonNull(T t, String name) {
-    if (t == null) throw new NullPointerException(name);
-    return t;
-  }
-}

io/src/main/java/retrofit/io/AbstractTypedBytes.java

 // Copyright 2010 Square, Inc.
 package retrofit.io;
 
-import retrofit.internal.Objects;
-
 import java.io.Serializable;
 
 /**
@@ -21,7 +19,8 @@ public abstract class AbstractTypedBytes implements TypedBytes, Serializable {
    * @throws NullPointerException if mimeType is null
    */
   public AbstractTypedBytes(MimeType mimeType) {
-    this.mimeType = Objects.nonNull(mimeType, "mimeType");
+    if (mimeType == null) throw new NullPointerException("mimeType");
+    this.mimeType = mimeType;
   }
 
   public MimeType mimeType() {

io/src/main/java/retrofit/io/TypedByteArray.java

 // Copyright 2010 Square, Inc.
 package retrofit.io;
 
-import retrofit.internal.Objects;
-
 import java.io.IOException;
 import java.io.OutputStream;
 import java.util.Arrays;
@@ -24,7 +22,8 @@ public class TypedByteArray extends AbstractTypedBytes {
    */
   public TypedByteArray(byte[] bytes, MimeType mimeType) {
     super(mimeType);
-    this.bytes = Objects.nonNull(bytes, "bytes");
+    if (bytes == null) throw new NullPointerException("bytes");
+    this.bytes = bytes;
   }
 
   public void writeTo(OutputStream out) throws IOException {

io/src/main/java/retrofit/io/TypedFile.java

 // Copyright 2010 Square, Inc.
 package retrofit.io;
 
-import retrofit.internal.Objects;
-
 import java.io.File;
 import java.io.IOException;
 import java.io.OutputStream;
@@ -24,7 +22,8 @@ public class TypedFile extends AbstractTypedBytes {
    */
   public TypedFile(File file, MimeType mimeType) {
     super(mimeType);
-    this.file = Objects.nonNull(file, "file");
+    if (file == null) throw new NullPointerException("file");
+    this.file = file;
   }
 
   /** Returns the file. */

io/src/test/java/retrofit/internal/ObjectsTest.java

-// Copyright 2010 Square, Inc.
-package retrofit.internal;
-
-import org.junit.Test;
-
-import static org.fest.assertions.api.Assertions.assertThat;
-import static org.fest.assertions.api.Fail.fail;
-
-/** @author Eric Burke (eric@squareup.com) */
-public class ObjectsTest {
-  @Test public void testNonNull() {
-    Objects.nonNull(10, "whatever");
-    String message = "fail";
-    try {
-      Objects.nonNull(null, message);
-      fail("Expected NullPointerException");
-    } catch (NullPointerException expected) {
-      assertThat(expected.getMessage()).isEqualTo(message);
-    }
-  }
-}