Fix the warnings from the previous commit

9 files changed, 16 insertions, 11 deletions

diff --git a/src/main/java/au/id/zancanaro/javacheck/Generator.java b/src/main/java/au/id/zancanaro/javacheck/Generator.java
index 8642e8b..d87e894 100644
--- a/src/main/java/au/id/zancanaro/javacheck/Generator.java
+++ b/src/main/java/au/id/zancanaro/javacheck/Generator.java
@@ -68,7 +68,7 @@ public interface Generator<T> {
     static <T> Generator<List<T>> tuple(Generator<? extends T>... generators) {
         return (random, size) -> {
             @SuppressWarnings("unchecked")
-            ShrinkTree<T>[] result = (ShrinkTree<T>[]) new ShrinkTree[generators.length];
+            ShrinkTree<T>[] result = (ShrinkTree<T>[]) new ShrinkTree<?>[generators.length];
             int index = 0;
             for (Generator<? extends T> generator : generators) {
                 result[index++] = generator.generate(random, size).map(Function.identity());
@@ -93,7 +93,7 @@ public interface Generator<T> {
     static <T> Generator<List<T>> list(int count, Generator<T> generator) {
         return (random, size) -> {
             @SuppressWarnings("unchecked")
-            ShrinkTree<T>[] result = (ShrinkTree<T>[]) new ShrinkTree[count];
+            ShrinkTree<T>[] result = (ShrinkTree<T>[]) new ShrinkTree<?>[count];
             for (int i = 0; i < count; ++i) {
                 result[i] = generator.generate(random, size);
             }
diff --git a/src/main/java/au/id/zancanaro/javacheck/Generators.java b/src/main/java/au/id/zancanaro/javacheck/Generators.java
index 4c8e02e..af8f8ad 100644
--- a/src/main/java/au/id/zancanaro/javacheck/Generators.java
+++ b/src/main/java/au/id/zancanaro/javacheck/Generators.java
@@ -45,6 +45,7 @@ public final class Generators {
     }
 
     @SafeVarargs
+    @SuppressWarnings("varargs")
     public static <T> Generator<T> elements(T... elements) {
         return elements(Arrays.asList(elements));
     }
diff --git a/src/main/java/au/id/zancanaro/javacheck/ShrinkTree.java b/src/main/java/au/id/zancanaro/javacheck/ShrinkTree.java
index 6e21f27..ddef800 100644
--- a/src/main/java/au/id/zancanaro/javacheck/ShrinkTree.java
+++ b/src/main/java/au/id/zancanaro/javacheck/ShrinkTree.java
@@ -56,17 +56,17 @@ public class ShrinkTree<T> {
     public static <T> Stream<ShrinkTree<T>[]> promoteChildren(ShrinkTree<? super T>[] trees) {
         return IntStream.range(0, trees.length)
                 .mapToObj(index -> trees[index].getChildren().map(child ->
-                        IntStream.range(0, trees.length)
+                        (ShrinkTree<T>[]) IntStream.range(0, trees.length)
                                 .mapToObj(i -> (i == index ? child : trees[i]))
                                 .toArray(ShrinkTree[]::new)))
-                .flatMap(x -> x)
-                .map(x -> (ShrinkTree<T>[]) x);
+                .flatMap(x -> x);
     }
 
+    @SuppressWarnings("unchecked")
     public static <T> Stream<ShrinkTree<T>[]> removeChildren(ShrinkTree<? super T>[] trees) {
         return IntStream.range(0, trees.length)
                 .mapToObj(index ->
-                        IntStream.range(0, trees.length)
+                        (ShrinkTree<T>[]) IntStream.range(0, trees.length)
                                 .filter(i -> i != index)
                                 .mapToObj(i -> trees[i])
                                 .toArray(ShrinkTree[]::new));
diff --git a/src/main/java/au/id/zancanaro/javacheck/junit/PropertyError.java b/src/main/java/au/id/zancanaro/javacheck/junit/PropertyError.java
index 4f02a56..620b3d1 100644
--- a/src/main/java/au/id/zancanaro/javacheck/junit/PropertyError.java
+++ b/src/main/java/au/id/zancanaro/javacheck/junit/PropertyError.java
@@ -7,6 +7,8 @@ import java.util.List;
 
 @SuppressWarnings("WeakerAccess")
 public class PropertyError extends AssertionError {
+    private static final long serialVersionUID = 1L;
+
     public PropertyError(String methodName, long seed, ShrinkResult shrunk) {
         super(shrunk.thrown.getMessage() == null ?
                 String.format("%s(%s)%n\tSeed: %s%n\tVisited: %s; Depth: %s",
diff --git a/src/main/java/au/id/zancanaro/javacheck/object/ObjectGenerationException.java b/src/main/java/au/id/zancanaro/javacheck/object/ObjectGenerationException.java
index 444de32..3006e78 100644
--- a/src/main/java/au/id/zancanaro/javacheck/object/ObjectGenerationException.java
+++ b/src/main/java/au/id/zancanaro/javacheck/object/ObjectGenerationException.java
@@ -1,6 +1,8 @@
 package au.id.zancanaro.javacheck.object;
 
 public class ObjectGenerationException extends RuntimeException {
+    private static final long serialVersionUID = 1L;
+    
     public ObjectGenerationException(String message) {
         super(message);
     }
diff --git a/src/main/java/au/id/zancanaro/javacheck/object/ObjectGenerator.java b/src/main/java/au/id/zancanaro/javacheck/object/ObjectGenerator.java
index a31d990..f518a56 100644
--- a/src/main/java/au/id/zancanaro/javacheck/object/ObjectGenerator.java
+++ b/src/main/java/au/id/zancanaro/javacheck/object/ObjectGenerator.java
@@ -77,9 +77,9 @@ public class ObjectGenerator<T> implements Generator<T> {
 
     @Override
     public ShrinkTree<T> generate(Random random, int size) {
-        Generator<?>[] parameters = new Generator[constructorGenerators.size()];
+        Generator<?>[] parameters = new Generator<?>[constructorGenerators.size()];
         parameters = constructorGenerators.toArray(parameters);
-        Generator<?>[] fields = new Generator[fieldGenerators.size()];
+        Generator<?>[] fields = new Generator<?>[fieldGenerators.size()];
         fields = fieldGenerators.values().toArray(fields);
         return Generator.tuple(Generator.tuple(parameters), Generator.tuple(fields))
                 .generate(random, size)
diff --git a/src/main/java/au/id/zancanaro/javacheck/object/UseGenerator.java b/src/main/java/au/id/zancanaro/javacheck/object/UseGenerator.java
index f62d978..188416f 100644
--- a/src/main/java/au/id/zancanaro/javacheck/object/UseGenerator.java
+++ b/src/main/java/au/id/zancanaro/javacheck/object/UseGenerator.java
@@ -10,5 +10,5 @@ import java.lang.annotation.Target;
 @Target({ElementType.FIELD, ElementType.PARAMETER})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface UseGenerator {
-    Class<? extends Generator> value();
+    Class<? extends Generator<?>> value();
 }
diff --git a/src/main/java/au/id/zancanaro/javacheck/state/CommandListGenerator.java b/src/main/java/au/id/zancanaro/javacheck/state/CommandListGenerator.java
index 0eb1793..0aa693d 100644
--- a/src/main/java/au/id/zancanaro/javacheck/state/CommandListGenerator.java
+++ b/src/main/java/au/id/zancanaro/javacheck/state/CommandListGenerator.java
@@ -45,7 +45,7 @@ public class CommandListGenerator<S> implements Generator<CommandList<S>> {
     public ShrinkTree<CommandList<S>> generate(Random random, int size) {
         int count = random.nextInt(size);
         @SuppressWarnings("unchecked")
-        ShrinkTree<GeneratedCommand<S, ?, ?>>[] commandTrees = (ShrinkTree<GeneratedCommand<S, ?, ?>>[]) new ShrinkTree[count];
+        ShrinkTree<GeneratedCommand<S, ?, ?>>[] commandTrees = (ShrinkTree<GeneratedCommand<S, ?, ?>>[]) new ShrinkTree<?>[count];
         S state = initialState;
         for (int i = 0; i < count; ++i) {
             commandTrees[i] = commandGenerator(i, state).generate(random, size);
diff --git a/src/main/java/au/id/zancanaro/javacheck/state/GeneratedCommand.java b/src/main/java/au/id/zancanaro/javacheck/state/GeneratedCommand.java
index 85f6fdd..6da9bf2 100644
--- a/src/main/java/au/id/zancanaro/javacheck/state/GeneratedCommand.java
+++ b/src/main/java/au/id/zancanaro/javacheck/state/GeneratedCommand.java
@@ -28,7 +28,7 @@ public class GeneratedCommand<S, A, R> {
         if (this == o) return true;
         if (o == null || getClass() != o.getClass()) return false;
 
-        GeneratedCommand that = (GeneratedCommand) o;
+        GeneratedCommand<?,?,?> that = (GeneratedCommand<?,?,?>) o;
 
         return !(args != null ? !args.equals(that.args) : that.args != null)
                 && !(command != null ? !command.equals(that.command) : that.command != null);