java.util.Objects equals/hashCode: use Arrays for array fields, ensure single array is not passed to Objects.hashCode vararg to avoid confusion (IDEA-140111)

java/java-tests/testData/codeInsight/generateEquals/afterSingleArrayOfPrimitiveWithObjectsTemplate.java

@@ -0,0 +1,18 @@
+import java.util.Arrays;
+
+class A {
+  int[] a1;
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        final A a = (A) o;
+        return Arrays.equals(a1, a.a1);
+    }
+
+    @Override
+    public int hashCode() {
+        return Arrays.hashCode(a1);
+    }
+}

java/java-tests/testData/codeInsight/generateEquals/beforeSingleArrayOfPrimitiveWithObjectsTemplate.java

@@ -0,0 +1,4 @@
+class A {
+  int[] a1;
+  <caret>
+}