diff --git a/src/components/src/test/groovy/org/apache/jmeter/timers/UniformRandomTimerSpec.groovy b/src/components/src/test/groovy/org/apache/jmeter/timers/UniformRandomTimerSpec.groovy
index 756d69a5a71..dae6286b79f 100644
--- a/src/components/src/test/groovy/org/apache/jmeter/timers/UniformRandomTimerSpec.groovy
+++ b/src/components/src/test/groovy/org/apache/jmeter/timers/UniformRandomTimerSpec.groovy
@@ -25,8 +25,6 @@ class UniformRandomTimerSpec extends Specification {
     def sut = new UniformRandomTimer()
 
     def "default delay is 0"() {
-        given:
-            sut.iterationStart(null)
         when:
             def computedDelay = sut.delay()
         then:
@@ -34,8 +32,6 @@ class UniformRandomTimerSpec extends Specification {
     }
 
     def "default range is 0"() {
-        given:
-            sut.iterationStart(null)
         when:
             def actualRange = sut.range
         then:
@@ -45,7 +41,6 @@ class UniformRandomTimerSpec extends Specification {
     def "delay can be set via a String"() {
         given:
             sut.setDelay("1")
-            sut.iterationStart(null)
         when:
             def computedDelay = sut.delay()
         then:
@@ -57,7 +52,6 @@ class UniformRandomTimerSpec extends Specification {
         given:
             sut.setDelay(delay)
             sut.setRange(range)
-            sut.iterationStart(null)
         when:
             def computedDelay = sut.delay()
         then:
diff --git a/src/components/src/test/java/org/apache/jmeter/timers/ConstantThroughputTimerTest.java b/src/components/src/test/java/org/apache/jmeter/timers/ConstantThroughputTimerTest.java
index a55b4bae4a3..1dfa7452490 100644
--- a/src/components/src/test/java/org/apache/jmeter/timers/ConstantThroughputTimerTest.java
+++ b/src/components/src/test/java/org/apache/jmeter/timers/ConstantThroughputTimerTest.java
@@ -127,7 +127,6 @@ void testUniformRandomTimer() throws Exception {
         UniformRandomTimer timer = new UniformRandomTimer();
         timer.setDelay("1000");
         timer.setRange(100d);
-        timer.iterationStart(null);
         long delay = timer.delay();
         assertBetween(1000, 1100, delay);
     }
@@ -142,7 +141,6 @@ private static void assertBetween(long expectedLow, long expectedHigh, long actu
     void testConstantTimer() throws Exception {
         ConstantTimer timer = new ConstantTimer();
         timer.setDelay("1000");
-        timer.iterationStart(null);
         Assertions.assertEquals(1000, timer.delay());
     }
 
@@ -151,7 +149,6 @@ void testPoissonRandomTimerRangeHigherThan30() throws Exception {
         PoissonRandomTimer timer = new PoissonRandomTimer();
         timer.setDelay("300");
         timer.setRange(100d);
-        timer.iterationStart(null);
         long delay = timer.delay();
         assertBetween(356, 457, delay);
     }
@@ -161,7 +158,6 @@ void testPoissonRandomTimerRangeLowerThan30() throws Exception {
         PoissonRandomTimer timer = new PoissonRandomTimer();
         timer.setDelay("300");
         timer.setRange(30d);
-        timer.iterationStart(null);
         long delay = timer.delay();
         assertBetween(305, 362, delay);
     }