diff --git a/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/SwingCommitList.java b/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/SwingCommitList.java
index d8660e5ed..4a1196447 100644
--- a/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/SwingCommitList.java
+++ b/org.eclipse.jgit.ui/src/org/eclipse/jgit/awtui/SwingCommitList.java
@@ -83,14 +83,5 @@ protected void recycleLane(final SwingLane lane) {
 
 	static class SwingLane extends PlotLane {
 		Color color;
-		@Override
-		public boolean equals(Object o) {
-			return super.equals(o) && color.equals(((SwingLane)o).color);
-		}
-
-		@Override
-		public int hashCode() {
-			return super.hashCode() ^ color.hashCode();
-		}
 	}
 }
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotCommitList.java b/org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotCommitList.java
index 943ec4ec3..9175e14f2 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotCommitList.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotCommitList.java
@@ -236,7 +236,6 @@ private void handleBlockedLanes(final int index,
 			if (newPos == -1)
 				newPos = positionsAllocated++;
 			freePositions.add(Integer.valueOf(commit.lane.getPosition()));
-			activeLanes.remove(commit.lane);
 			commit.lane.position = newPos;
 			activeLanes.add(commit.lane);
 		}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotLane.java b/org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotLane.java
index fe67ac993..866a0f943 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotLane.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/revplot/PlotLane.java
@@ -63,12 +63,4 @@ public class PlotLane implements Serializable {
 	public int getPosition() {
 		return position;
 	}
-
-	public int hashCode() {
-		return position;
-	}
-
-	public boolean equals(final Object o) {
-		return o == this;
-	}
 }