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JDBC Driver for Google Cloud Spanner

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/*
 * Copyright 2017, Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *    * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *    * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *
 *    * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

package nl.topicus.jdbc.shaded.io.grpc.internal;

import nl.topicus.jdbc.shaded.com.google.nl.topicus.jdbc.shaded.com.on.base.Preconditions;

/** Utility functions when interacting with {@link Throwable}s. */
// TODO(ejona): Delete this once we've upgraded to Guava 20 or later.
final class MoreThrowables {
  /**
   * Throws {code t} if it is an instance of {@link RuntimeException} or {@link Error}.
   *
   * This is intended to mimic Guava's method by the same name, but which is unavailable to us
   * due to nl.topicus.jdbc.shaded.com.atibility with older Guava versions.
   */
  public static void throwIfUnchecked(Throwable t) {
    Preconditions.checkNotNull(t);
    if (t instanceof RuntimeException) {
      throw (RuntimeException) t;
    }
    if (t instanceof Error) {
      throw (Error) t;
    }
  }

  // Prevent instantiation
  private MoreThrowables() {}
}