Add defaults for PollerBehaviorAutoscaling

Author: Quinn-With-Two-Ns

temporal-sdk/src/main/java/io/temporal/worker/tuning/PollerBehaviorAutoscaling.java

@@ -16,6 +16,19 @@ public final class PollerBehaviorAutoscaling implements PollerBehavior {
   private final int maxConcurrentTaskPollers;
   private final int initialConcurrentTaskPollers;
 
+  /**
+   * Creates a new PollerBehaviorAutoscaling with default parameters.
+   *
+   * <p> Default parameters are:
+   * <ul>
+   *     <li>minConcurrentTaskPollers = 1</li>
+   *     <li>maxConcurrentTaskPollers = 100</li>
+   *     <li>initialConcurrentTaskPollers = 5</li>
+   */
+  public PollerBehaviorAutoscaling() {
+    this(1, 100, 5);
+  }
+
   /**
    * Creates a new PollerBehaviorAutoscaling with the specified parameters.
    *

temporal-sdk/src/test/java/io/temporal/worker/shutdown/CleanNexusWorkerShutdownTest.java

@@ -47,7 +47,7 @@ public class CleanNexusWorkerShutdownTest {
   public static Collection<PollerBehavior> data() {
     return Arrays.asList(
         new PollerBehavior[] {
-          new PollerBehaviorSimpleMaximum(10), new PollerBehaviorAutoscaling(1, 10, 5),
+          new PollerBehaviorSimpleMaximum(10), new PollerBehaviorAutoscaling(),
         });
   }