MoreThrowables.java

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package io.grpc.internal;

import com.google.common.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}.
   *
   * <p>This is intended to mimic Guava's method by the same name, but which is unavailable to us
   * due to compatibility 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() {}
}