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Asked: 2026-06-12T04:48:36+00:00

I am developing crm struts web application in eclipse. For mailing purpose i created

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I am developing crm struts web application in eclipse. For mailing purpose i created mailchimp account and mandrill integration. I found third party wrapper api (cribbstechnologies-Java-Mandrill-Wrapper). while executing from main method it gives exception like below. I provided currect API code, All mail informations in MandrillHTMLMessage object.

private BaseMandrillResponse performPostRequest(BaseMandrillRequest request, String serviceMethod, Object responseClass, TypeReference reference) throws RequestFailedException {
    try {
        System.out.println("PostRequest Starts");
        request.setKey(config.getApiKey());
        HttpPost postRequest = new HttpPost(config.getServiceUrl() + serviceMethod);
        String postData = getPostData(request);

………….

protected String getPostData(BaseMandrillRequest request) throws JsonGenerationException, JsonMappingException, IOException {
        return objectMapper.writeValueAsString(request);
}

Exception at objectMapper.writeValueAsString(request); line like below

Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.codehaus.jackson.JsonFactory._getBufferRecycler()Lorg/codehaus/jackson/util/BufferRecycler; from class org.codehaus.jackson.map.ObjectMapper
at org.codehaus.jackson.map.ObjectMapper.writeValueAsString(ObjectMapper.java:1030)
at com.cribbstechnologies.clients.mandrill.request.MandrillRESTRequest.getPostData(MandrillRESTRequest.java:102)
at com.cribbstechnologies.clients.mandrill.request.MandrillRESTRequest.performPostRequest(MandrillRESTRequest.java:47)
at com.cribbstechnologies.clients.mandrill.request.MandrillRESTRequest.postRequest(MandrillRESTRequest.java:38)
at com.cribbstechnologies.clients.mandrill.request.MandrillMessagesRequest.sendMessage(MandrillMessagesRequest.java:33)
at com.cribbstechnologies.clients.mandrill.it.MessagesTest.testSendMessage(MessagesTest.java:86)
at com.cribbstechnologies.clients.mandrill.it.MessagesTest.before(MessagesTest.java:63)
at com.cribbstechnologies.clients.mandrill.it.MessagesTest.beforeClass(MessagesTest.java:56)
at com.cribbstechnologies.clients.mandrill.it.SendMail.main(SendMail.java:9)

how to solve the exception. i tried in google but no result found.

Please anyone help me…

Thanks in advance…

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1 Answer

  1. Editorial Team

    Have you tried reaching out to the author on Github?
    https://github.com/cribbstechnologies/Java-Mandrill-Wrapper

    I would file an issue with them directly if the library is acting up. I don’t have enough context from your posting here to troubleshoot it directly.

    There are also some integration tests that may help illuminate usage, if there is any confusion:
    https://github.com/cribbstechnologies/Java-Mandrill-Wrapper/blob/master/src/test/java/com/cribbstechnologies/clients/mandrill/request/MandrillUsersRequestTest.java

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