[infer][java] model org.assertj.core.util.Preconditions

Summary:
The model is the same as `com.google.common.base.Preconditions`.

We could imagine a more generic ways of dealing with `x.y.Z.checkNotNull()` but this would work for now.

Reviewed By: sblackshear

Differential Revision: D6341869

fbshipit-source-id: 5b6e507

infer/models/java/src/org/assertj/core/util/Preconditions.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2017 - present Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+package org.assertj.core.util;
+
+import javax.annotation.Nullable;
+
+import static com.facebook.infer.builtins.InferBuiltins.assume;
+
+public final class Preconditions {
+
+  public static void checkArgument(
+      boolean expression, String errorMessageTemplate, Object... errorMessageArgs) {
+    assume(expression);
+  }
+
+  public static <T> T checkNotNull(T reference) {
+    assume(reference != null);
+    return reference;
+  }
+
+  public static <T> T checkNotNull(T reference, String message) {
+    assume(reference != null);
+    return reference;
+  }
+
+  public static void checkState(
+      boolean expression, String errorMessageTemplate, Object... errorMessageArgs) {
+    assume(expression);
+  }
+}