Another cherry pick from #4759

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/databind/jsontype/jdk/BigDecimalForFloatDisabled3133Test.java

@@ -3,7 +3,6 @@
 import java.util.HashMap;
 import java.util.Map;
 
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 import com.fasterxml.jackson.annotation.JsonSubTypes;
@@ -12,6 +11,8 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.testutil.DatabindTestUtil;
 
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 /**
  * Unit test proving that below issue is fixed.
  * <p>
@@ -55,11 +56,11 @@ public void testDeserializeWithDifferentOrdering3133() throws Exception
         // case 1 : type first
         String ordering1 = a2q("{'type': 'MAP','map': { 'doubleValue': 0.1 }}");
         TestMapContainer3133 model1 = mapper.readValue(ordering1, TestMapContainer3133.class);
-        Assertions.assertTrue(model1.getMap().get("doubleValue") instanceof Double);
+        assertTrue(model1.getMap().get("doubleValue") instanceof Double);
 
         // case 2 : value first
         String ordering2 = a2q("{'map': { 'doubleValue': 0.1 }, 'type': 'MAP'}");
         TestMapContainer3133 model2 = mapper.readValue(ordering2, TestMapContainer3133.class);
-        Assertions.assertTrue(model2.getMap().get("doubleValue") instanceof Double);
+        assertTrue(model2.getMap().get("doubleValue") instanceof Double);
     }
 }

src/test/java/com/fasterxml/jackson/databind/objectid/ObjectIdSubTypes4610Test.java

@@ -2,7 +2,6 @@
 
 import java.util.List;
 
-import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 import com.fasterxml.jackson.annotation.*;
@@ -11,8 +10,9 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.testutil.DatabindTestUtil;
 
-import static org.junit.Assert.fail;
 import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.fail;
 
 public class ObjectIdSubTypes4610Test extends DatabindTestUtil
 {
@@ -43,7 +43,7 @@ public void shouldHandleTypeDefinitionJson() throws Exception {
                 .without(DeserializationFeature.FAIL_ON_UNRESOLVED_OBJECT_IDS)
                 .readValue(input);
 
-        Assertions.assertInstanceOf(NumberTypeDefinition.class, model);
+        assertInstanceOf(NumberTypeDefinition.class, model);
     }
 
     @Test
@@ -56,7 +56,7 @@ public void testRoundTrip() throws Exception {
         TypeDefinition model = MAPPER.readerFor(TypeDefinition.class)
                 .with(DeserializationFeature.FAIL_ON_UNRESOLVED_OBJECT_IDS)
                 .readValue(JSON);
-        Assertions.assertInstanceOf(NumberTypeDefinition.class, model);
+        assertInstanceOf(NumberTypeDefinition.class, model);
     }
 
     @Test

src/test/java/com/fasterxml/jackson/databind/tofix/CustomObjectKeyDeserializer4680Test.java

@@ -2,6 +2,8 @@
 
 import java.util.Map;
 
+import org.junit.jupiter.api.Test;
+
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.DeserializationContext;
 import com.fasterxml.jackson.databind.KeyDeserializer;
@@ -10,8 +12,7 @@
 import com.fasterxml.jackson.databind.module.SimpleModule;
 import com.fasterxml.jackson.databind.testutil.failure.JacksonTestFailureExpected;
 
-import org.junit.jupiter.api.Assertions;
-import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 // [databind#4680] Custom key deserialiser registered for `Object.class` is ignored on nested JSON
 public class CustomObjectKeyDeserializer4680Test
@@ -58,15 +59,15 @@ public Object deserializeKey(String key, DeserializationContext ctxt) {
 
         // THEN
         // depth 1 works as expected
-        Assertions.assertEquals("Erik", result.get("name_"));
+        assertEquals("Erik", result.get("name_"));
 
         // before fix, depth 2 does NOT work as expected
         Map<String, Object> addressMap = (Map<String, Object>) result.get("address_");
         // before fix, null?? Fails here
-        Assertions.assertEquals("Elvirastr", addressMap.get("street_"));
+        assertEquals("Elvirastr", addressMap.get("street_"));
         Map<String, Object> cityMap = (Map<String, Object>) addressMap.get("city_");
-        Assertions.assertEquals(1, cityMap.get("id_"));
-        Assertions.assertEquals("Berlin", cityMap.get("name_"));
+        assertEquals(1, cityMap.get("id_"));
+        assertEquals("Berlin", cityMap.get("name_"));
     }
 
 }