Expose AddressableLEDBuffer internal bytes

wpilibj/src/main/java/edu/wpi/first/wpilibj/AddressableLEDBuffer.java

@@ -89,4 +89,9 @@ public int getBlue(int index) {
   public AddressableLEDBufferView createView(int startingIndex, int endingIndex) {
     return new AddressableLEDBufferView(this, startingIndex, endingIndex);
   }
+
+  /** Returns the internal byte array of the buffer */
+  public byte[] getBytes() {
+    return m_buffer;
+  }
 }

wpilibj/src/main/java/edu/wpi/first/wpilibj/simulation/AddressableLEDSim.java

@@ -8,6 +8,7 @@
 import edu.wpi.first.hal.simulation.ConstBufferCallback;
 import edu.wpi.first.hal.simulation.NotifyCallback;
 import edu.wpi.first.wpilibj.AddressableLED;
+import edu.wpi.first.wpilibj.AddressableLEDBuffer;
 import java.util.NoSuchElementException;
 
 /** Class to control a simulated addressable LED. */
@@ -209,6 +210,15 @@ public void setData(byte[] data) {
     AddressableLEDDataJNI.setData(m_index, data);
   }
 
+  /**
+   * Change the LED data.
+   *
+   * @param data the new data
+   */
+  public void setData(AddressableLEDBuffer buffer) {
+    setData(buffer.getBytes());
+  }
+
   /** Reset all simulation data for this LED object. */
   public void resetData() {
     AddressableLEDDataJNI.resetData(m_index);