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Module for providing OAuth2 support to Spring Security

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package org.springframework.security.oauth2.common;

import org.springframework.security.web.util.ThrowableAnalyzer;
import org.springframework.security.web.util.ThrowableCauseExtractor;

import javax.servlet.ServletException;

/**
 * Default implementation of ThrowableAnalyzer which is capable of also unwrapping
 * ServletExceptions.
 *
 * 
 * @deprecated See the OAuth 2.0 Migration Guide for Spring Security 5.
 */
@Deprecated
public final class DefaultThrowableAnalyzer extends ThrowableAnalyzer {
  /**
   * @see org.springframework.security.web.util.ThrowableAnalyzer#initExtractorMap()
   */
  protected void initExtractorMap() {
    super.initExtractorMap();

    registerExtractor(ServletException.class, new ThrowableCauseExtractor() {
      public Throwable extractCause(Throwable throwable) {
        ThrowableAnalyzer.verifyThrowableHierarchy(throwable, ServletException.class);
        return ((ServletException) throwable).getRootCause();
      }
    });
  }
}