Program: 7574
Project: 7574
Buggy source:
@Test public void doRequest_A$String$HttpMethod$Map$String_TwitterOAuth_POST() throws Exception {
  try {
    OAuthRealm realm=new OAuthRealm("String_Node_Str");
    Properties props=new Properties();
    props.load(this.getClass().getClassLoader().getResourceAsStream("String_Node_Str"));
    String consumerKey=(String)props.get("String_Node_Str");
    String consumerSecret=(String)props.get("String_Node_Str");
    OAuthConsumer consumer=new OAuthConsumer(consumerKey,consumerSecret);
    String token=(String)props.get("String_Node_Str");
    String tokenSecret=(String)props.get("String_Node_Str");
    OAuthAccessToken accessToken=new OAuthAccessToken(token,tokenSecret);
    SignatureMethod signatureMethod=SignatureMethod.HMAC_SHA1;
    SignedRequestApacheHCImpl target=new SignedRequestApacheHCImpl(realm,consumer,accessToken,signatureMethod);
    String createUrl="String_Node_Str";
    HttpMethod method=HttpMethod.POST;
    String charset="String_Node_Str";
    Map<String,Object> params=new HashMap<String,Object>();
    params.put("String_Node_Str","String_Node_Str");
    HttpResponse actual=target.doPost(createUrl,params,charset);
    assertNotNull(actual);
    assertThat(actual.getStatusCode(),is(200));
    System.out.println(actual.getHeaders());
    System.out.println(actual.getTextBody());
    String destroyUrl="String_Node_Str";
    HttpResponse actual2=target.doPost(destroyUrl,params,charset);
    assertNotNull(actual2);
    assertThat(actual2.getStatusCode(),is(200));
    System.out.println(actual2.getHeaders());
    System.out.println(actual2.getTextBody());
  }
 catch (  NullPointerException e) {
    System.out.println("String_Node_Str");
  }
}

Fixed version (ground truth):
@Test public void doRequest_A$String$HttpMethod$Map$String_TwitterOAuth_POST() throws Exception {
  try {
    OAuthRealm realm=new OAuthRealm("String_Node_Str");
    Properties props=new Properties();
    props.load(this.getClass().getClassLoader().getResourceAsStream("String_Node_Str"));
    String consumerKey=(String)props.get("String_Node_Str");
    String consumerSecret=(String)props.get("String_Node_Str");
    OAuthConsumer consumer=new OAuthConsumer(consumerKey,consumerSecret);
    String token=(String)props.get("String_Node_Str");
    String tokenSecret=(String)props.get("String_Node_Str");
    OAuthAccessToken accessToken=new OAuthAccessToken(token,tokenSecret);
    SignatureMethod signatureMethod=SignatureMethod.HMAC_SHA1;
    SignedRequestApacheHCImpl target=new SignedRequestApacheHCImpl(realm,consumer,accessToken,signatureMethod);
    String createUrl="String_Node_Str";
    HttpMethod method=HttpMethod.POST;
    String charset="String_Node_Str";
    Map<String,Object> params=new HashMap<String,Object>();
    try {
      HttpResponse actual=target.doPost(createUrl,params,charset);
      assertNotNull(actual);
      assertThat(actual.getStatusCode(),is(200));
      System.out.println(actual.getHeaders());
      System.out.println(actual.getTextBody());
    }
 catch (    HttpException e) {
      System.out.println(e.getResponse().getTextBody());
    }
    String destroyUrl="String_Node_Str";
    HttpResponse actual2=target.doPost(destroyUrl,params,charset);
    assertNotNull(actual2);
    assertThat(actual2.getStatusCode(),is(200));
    System.out.println(actual2.getHeaders());
    System.out.println(actual2.getTextBody());
  }
 catch (  NullPointerException e) {
    System.out.println("String_Node_Str");
  }
}