docs: update filterer

filterer/src/main/java/com/iluwatar/filterer/App.java

@@ -42,7 +42,7 @@ import lombok.extern.slf4j.Slf4j;
  * objects are systems that are aware of threats that they can be vulnerable to. We would like
  * to have a way to create copy of different system objects but with filtered threats.
  * The thing is to keep it simple if we add new subtype of {@link Threat}
- * (for example {@link ProbableThreat}) - we still need to be able to filter by it's properties.
+ * (for example {@link ProbableThreat}) - we still need to be able to filter by its properties.
  */
 @Slf4j
 public class App {

filterer/src/main/java/com/iluwatar/filterer/threat/ProbabilisticThreatAwareSystem.java

@@ -28,7 +28,7 @@ import com.iluwatar.filterer.domain.Filterer;
 import java.util.List;
 
 /**
- * Represents system that is aware of it's threats with given probability of their occurrence.
+ * Represents system that is aware of its threats with given probability of their occurrence.
  */
 public interface ProbabilisticThreatAwareSystem extends ThreatAwareSystem {
 

filterer/src/main/java/com/iluwatar/filterer/threat/SimpleProbabilisticThreatAwareSystem.java

@@ -27,7 +27,6 @@ package com.iluwatar.filterer.threat;
 import com.iluwatar.filterer.domain.Filterer;
 import java.util.List;
 import java.util.function.Predicate;
-import java.util.stream.Collectors;
 import lombok.EqualsAndHashCode;
 import lombok.RequiredArgsConstructor;
 import lombok.ToString;

filterer/src/main/java/com/iluwatar/filterer/threat/SimpleThreatAwareSystem.java

@@ -28,7 +28,6 @@ import com.iluwatar.filterer.domain.Filterer;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.function.Predicate;
-import java.util.stream.Collectors;
 import lombok.EqualsAndHashCode;
 import lombok.RequiredArgsConstructor;
 import lombok.ToString;

filterer/src/test/java/com/iluwatar/filterer/threat/SimpleThreatAwareSystemTest.java

@@ -24,10 +24,10 @@
  */
 package com.iluwatar.filterer.threat;
 
-import org.junit.jupiter.api.Test;
-import java.util.List;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
-import static org.junit.jupiter.api.Assertions.*;
+import java.util.List;
+import org.junit.jupiter.api.Test;
 
 class SimpleThreatAwareSystemTest {
   @Test
@@ -47,4 +47,4 @@ class SimpleThreatAwareSystemTest {
     assertEquals(rootkitThreatAwareSystem.threats().size(), 1);
     assertEquals(rootkitThreatAwareSystem.threats().get(0), rootkit);
   }
-}
+}