获取包装异常中真实异常

package io.github.vampireachao.stream.core.lambda;
/**
 * LambdaInvokeException
 *
 * @author VampireAchao ZVerify
 * @since 2022/9/4
 */
public class LambdaInvokeException extends RuntimeException {
    /**
     * <p>Constructor for LambdaInvokeException.</p>
     *
     * @param cause a {@link java.lang.Throwable} object
     */
    public LambdaInvokeException(Throwable cause) {
        super(cause);
    }
    /**
     * getRealException
     *
     * @return realException
     */
    public Throwable getRealException() {
        return getCause().getCause();
    }
}

try {
  // ...
} catch (LambdaInvokeException e) {
  Throwable throwable = e.getRealException();
  throw throwabsle;
}