copyTransient is not global

src/com/esotericsoftware/kryo/Kryo.java

@@ -136,6 +136,7 @@ public class Kryo {
 
 	private int copyDepth;
 	private boolean copyShallow;
+	private boolean copyTransient = true;
 	private IdentityMap originalToCopy;
 	private Object needsCopyReference;
 	private GenericsResolver genericsResolver = new GenericsResolver();
@@ -1046,6 +1047,24 @@ public void setCopyReferences (boolean copyReferences) {
 		this.copyReferences = copyReferences;
 	}
 
+	/**
+	 * If false, when {@link #copy(Object)} is called all transient fields that are accessible will be ignored from
+	 * being copied. This has to be set before registering classes with kryo for it to be used by all field
+	 * serializers. If transient fields has to be copied for specific classes then use {@link FieldSerializer#setCopyTransient(boolean)}.
+	 * Default is true.
+   */
+	public void setCopyTransient(boolean copyTransient) {
+		this.copyTransient = copyTransient;
+	}
+
+	/**
+	 * Returns true if copying of transient fields is enabled for {@link #copy(Object)}.
+	 * @return true if transient field copy is enable
+	 */
+	public boolean getCopyTransient() {
+		return copyTransient;
+	}
+
 	/** Sets the reference resolver and enables references. */
 	public void setReferenceResolver (ReferenceResolver referenceResolver) {
 		if (referenceResolver == null) throw new IllegalArgumentException("referenceResolver cannot be null.");

src/com/esotericsoftware/kryo/serializers/FieldSerializer.java

@@ -152,6 +152,7 @@ public FieldSerializer (Kryo kryo, Class type) {
 		this.genericsUtil = new FieldSerializerGenericsUtil(this);
 		this.unsafeUtil = FieldSerializerUnsafeUtil.Factory.getInstance(this);
 		this.annotationsUtil = new FieldSerializerAnnotationsUtil(this);
+		this.copyTransient = kryo.getCopyTransient();
 		rebuildCachedFields();
 	}
 
@@ -172,6 +173,7 @@ public FieldSerializer (Kryo kryo, Class type, Class[] generics) {
 		this.genericsUtil = new FieldSerializerGenericsUtil(this);
 		this.unsafeUtil = FieldSerializerUnsafeUtil.Factory.getInstance(this);
 		this.annotationsUtil = new FieldSerializerAnnotationsUtil(this);
+		this.copyTransient = kryo.getCopyTransient();
 		rebuildCachedFields();
 	}
 

test/com/esotericsoftware/kryo/FieldSerializerTest.java

@@ -15,8 +15,8 @@
  * SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
-
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
+
 package com.esotericsoftware.kryo;
 
 import java.util.ArrayList;
@@ -26,22 +26,19 @@
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
-import java.util.Map.Entry;
 
 import org.objenesis.strategy.StdInstantiatorStrategy;
 
 import com.esotericsoftware.kryo.io.Input;
 import com.esotericsoftware.kryo.io.Output;
+import com.esotericsoftware.kryo.serializers.CollectionSerializer;
 import com.esotericsoftware.kryo.serializers.CollectionSerializer.BindCollection;
 import com.esotericsoftware.kryo.serializers.DefaultArraySerializers.IntArraySerializer;
 import com.esotericsoftware.kryo.serializers.DefaultArraySerializers.LongArraySerializer;
-import com.esotericsoftware.kryo.serializers.DefaultArraySerializers.ObjectArraySerializer;
 import com.esotericsoftware.kryo.serializers.DefaultSerializers.StringSerializer;
 import com.esotericsoftware.kryo.serializers.FieldSerializer;
 import com.esotericsoftware.kryo.serializers.FieldSerializer.Bind;
 import com.esotericsoftware.kryo.serializers.FieldSerializer.Optional;
-import com.esotericsoftware.kryo.serializers.MapSerializer;
-import com.esotericsoftware.kryo.serializers.CollectionSerializer;
 import com.esotericsoftware.kryo.serializers.MapSerializer.BindMap;
 
 /** @author Nathan Sweet <misc@n4te.com> */
@@ -462,7 +459,26 @@ public void testTransients () {
 		HasTransients objectWithTransients2 = kryo.copy(objectWithTransients1);
 		assertEquals("Objects should be equal if copy includes transient fields", objectWithTransients2, objectWithTransients1);
 	}
-
+
+	public void testTransientsUsingGlobalConfig () {
+		kryo.setCopyTransient(false);
+		kryo.register(HasTransients.class);
+		HasTransients objectWithTransients1 = new HasTransients();
+		objectWithTransients1.transientField1 = "Test";
+		objectWithTransients1.anotherField2 = 5;
+		objectWithTransients1.anotherField3 = "Field2";
+
+		FieldSerializer<HasTransients> ser = (FieldSerializer<HasTransients>)kryo.getSerializer(HasTransients.class);
+		HasTransients objectWithTransients3 = kryo.copy(objectWithTransients1);
+		assertTrue("Objects should be different if copy does not include transient fields",
+				!objectWithTransients3.equals(objectWithTransients1));
+		assertEquals("transient fields should be null", objectWithTransients3.transientField1, null);
+
+		ser.setCopyTransient(true);
+		HasTransients objectWithTransients2 = kryo.copy(objectWithTransients1);
+		assertEquals("Objects should be equal if copy includes transient fields", objectWithTransients2, objectWithTransients1);
+	}
+
 	public void testCorrectlyAnnotatedFields () {
 		kryo.register(int[].class);
 		kryo.register(long[].class);
@@ -1043,4 +1059,4 @@ public boolean equals(Object o) {
 			return true;
 		}
 	}
-}
+}