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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hudi.exception;

import javax.annotation.Nonnull;

/**
 * Class collecting common utilities helping in handling {@link Exception}s
 */
public final class ExceptionUtil {
  private ExceptionUtil() {}

  /**
   * Fetches inner-most cause of the provided {@link Throwable}
   */
  @Nonnull
  public static Throwable getRootCause(@Nonnull Throwable t) {
    Throwable cause = t;
    while (cause.getCause() != null) {
      cause = cause.getCause();
    }

    return cause;
  }

}