infer_clone/infer/tests/codetoanalyze/java/topl/baos/BaosTest.java

/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;

class BaosTest {
  void aBad() throws IOException {
    ByteArrayOutputStream x = new ByteArrayOutputStream();
    ObjectOutputStream y = new ObjectOutputStream(x);
    y.writeObject(1337);
    byte[] bytes = x.toByteArray(); // This may return partial results.
  }

  /** Bugfix for aBad. */
  void a1Ok() throws IOException {
    ByteArrayOutputStream x = new ByteArrayOutputStream();
    ObjectOutputStream y = new ObjectOutputStream(x);
    y.writeObject(1337);
    y.close();
    byte[] bytes = x.toByteArray();
  }

  /** Another bugfix for aBad. */
  void a2Ok() throws IOException {
    ByteArrayOutputStream x = new ByteArrayOutputStream();
    ObjectOutputStream y = new ObjectOutputStream(x);
    y.writeObject(1337);
    y.flush();
    byte[] bytes = x.toByteArray();
  }

  void bBad() throws IOException {
    ByteArrayOutputStream x = new ByteArrayOutputStream();
    ObjectOutputStream y = new ObjectOutputStream(x);
    y.writeObject(1337);
    byte[] bytes = x.toByteArray();
    y.close();
  }

  void cBad() throws IOException {
    ByteArrayOutputStream x = new ByteArrayOutputStream();
    DataOutputStream y = new DataOutputStream(x);
    y.writeLong(1337);
    byte[] bytes = x.toByteArray();
  }
}