fix rotate integer overflow for MIN_VALUE

Author: jhspetersson

src/main/java/io/github/jhspetersson/packrat/Packrat.java

@@ -1219,9 +1219,9 @@ public final class Packrat {
      */
     @NonNull
     public static <T> Gatherer<T, ?, T> rotate(int distance) {
-        if (distance < 0) {
+        if (distance < 0 && distance != Integer.MIN_VALUE) {
             return new RotateLeftGatherer<>(-distance);
-        } else if (distance > 0) {
+        } else if (distance != 0) {
             return new IntoListGatherer<>(list -> Collections.rotate(list, distance));
         } else {
             return new IdentityGatherer<>();

src/test/java/io/github/jhspetersson/packrat/RotateOverflowBugTest.java

@@ -0,0 +1,23 @@
+package io.github.jhspetersson.packrat;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.stream.Stream;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class RotateOverflowBugTest {
+
+    @Test
+    void rotateShouldHandleMinIntDistance() {
+        var result = Stream.of(1, 2, 3).gather(Packrat.rotate(Integer.MIN_VALUE)).toList();
+        assertEquals(3, result.size());
+    }
+
+    @Test
+    void rotateMinIntShouldProduceCorrectResult() {
+        var result = Stream.of("a", "b", "c", "d").gather(Packrat.rotate(Integer.MIN_VALUE)).toList();
+        assertEquals(List.of("a", "b", "c", "d"), result);
+    }
+}