Cause: javax net. ssl. SSLHandshakeException：java. security. Cert.certificateexception: there is no x509trustmanager implementation (spring) in Java

I'm trying to verify that I have a server certificate. I've created a keystore and trust store The exception occurred in the rest template in the code. I didn't get the error I found on the Internet, but I found no solution

My java code:

org.json.JSONObject json = new org.json.JSONObject();

    org.json.JSONObject root = new org.json.JSONObject();
    root.put("Version","1");
    json.put("key","test");
    root.put("message",json);
    System.out.println(root);

    String url = "https://example.com";
App obi = new App();
    obi.trustSelfSignedSSL();

    System.setProperty("javax.net.ssl.keyStore","/Users/crohitk/Desktop/spring/keystore.jks");

   System.setProperty("javax.net.ssl.keyStorePassword","password");
   System.setProperty("javax.net.ssl.trustStore","/Users/crohitk/Desktop/spring/ca-certs.jks");

   System.setProperty("javax.net.ssl.trustStorePassword","");


   KeyStore keyStore = null;
   KeyStore truststore = null;

        keyStore = KeyStore.getInstance(KeyStore.getDefaultType());

        keyStore.load(new FileInputStream("/Users/crohitk/Desktop/spring/keystore.jks"),"password".tocharArray());


    SSLConnectionSocketFactory socketFactory = null;

        socketFactory = new SSLConnectionSocketFactory(
                new SSLContextBuilder()

                        .loadKeyMaterial(keyStore,"password".tocharArray()).build());


    HttpClient httpClient = HttpClients.custom().setSSLSocketFactory(socketFactory).build();

    ClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory(
            httpClient);

    RestTemplate restTemplate = new RestTemplate(requestFactory);





  String result = restTemplate.postForObject(url,root,String.class);
    System.out.println(result);
    System.out.println( "Hello World!" );
}

    public static void trustSelfSignedSSL() {
        try {
            SSLContext ctx = SSLContext.getInstance("TLS");
            x509trustmanager tm = new x509trustmanager() {

                public void checkClientTrusted(X509Certificate[] xcs,String string) throws CertificateException {
                }

                public void checkServerTrusted(X509Certificate[] xcs,String string) throws CertificateException {
                }

                public X509Certificate[] getAcceptedIssuers() {
                    return null;
                }
            };
            ctx.init(null,new TrustManager[]{tm},null);
            SSLContext.setDefault(ctx);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        }

Error tracking:

Exception in thread "main" org.springframework.web.client.ResourceAccessException: I/O error on POST request for "https://example.com":java.security.cert.CertificateException: No x509trustmanager implementation available; nested exception is javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException: No x509trustmanager implementation available
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:602)
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:552)
    at org.springframework.web.client.RestTemplate.postForObject(RestTemplate.java:352)
    at url.url1.App.main(App.java:258)

My POM xml：

<dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <!-- Spring dependencies -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>


        <dependency>
    <groupId>commons-codec</groupId>
    <artifactId>commons-codec</artifactId>
    <version>1.9</version>
</dependency>


    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>4.1.0.RELEASE</version>
</dependency>



    <dependency>
        <groupId>MysqL</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.9</version>
    </dependency>



        <!-- Spring AOP dependency -->
        <dependency>
                <groupId>cglib</groupId>
        <artifactId>cglib</artifactId>
        <version>2.2</version>
    </dependency>

    <!-- Hibernate framework -->
        <dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate</artifactId>
    <version>3.2.3.ga</version>
</dependency>

    <!--<dependency>
        <groupId>hibernate</groupId>
        <artifactId>hibernate3</artifactId>
        <version>3.2.3.GA</version>
    </dependency> -->


    <!-- Hibernate library dependecy start -->
    <dependency>
        <groupId>dom4j</groupId>
        <artifactId>dom4j</artifactId>
        <version>1.6.1</version>
    </dependency>

    <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.1.1</version>
    </dependency>

    <dependency>
        <groupId>commons-collections</groupId>
        <artifactId>commons-collections</artifactId>
        <version>3.2.1</version>
    </dependency>

    <dependency>
        <groupId>antlr</groupId>
        <artifactId>antlr</artifactId>
        <version>2.7.7</version>
    </dependency>
    <!-- Hibernate library dependecy end -->

 <dependency>
            <groupId>javax.transaction</groupId>
            <artifactId>jta</artifactId>
            <version>1.1</version>
</dependency>

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-orm</artifactId>
    <version>${spring.version}</version>
    <type>jar</type>
    <scope>compile</scope>
</dependency>

  <dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>3.6.0.Final</version>
</dependency>
<dependency>


    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>1.6.5</version>
  </dependency>

<dependency>
    <groupId>javassist</groupId>
    <artifactId>javassist</artifactId>
    <version>3.12.1.GA</version>
</dependency>
<dependency>

    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.3.1</version>
</dependency>


 <dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>3.11</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.9</version>
</dependency>

<dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
    <version>2.4</version>
</dependency>

<dependency>
    <groupId>org.json</groupId>
    <artifactId>json</artifactId>
    <version>20141113</version>
</dependency>


<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.3.4</version>
</dependency>

<dependency>
    <groupId>commons-httpclient</groupId>
    <artifactId>commons-httpclient</artifactId>
    <version>3.1</version>
</dependency>

<dependency>
    <groupId>net.sf.hibernate</groupId>
    <artifactId>hibernate</artifactId>
    <version>2.1.8</version>
</dependency>



<dependency>
   <groupId>org.hibernate</groupId>
   <artifactId>hibernate-validator</artifactId>
   <version>5.2.1.Final</version>
</dependency>

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.3</version>
</dependency>

<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.17</version>
</dependency>
<dependency>
    <groupId>commons-lang</groupId>
    <artifactId>commons-lang</artifactId>
    <version>2.3</version>
</dependency>

<!--  <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>servlet-api</artifactId>
    <version>3.0-alpha-1</version>
</dependency>-->

<dependency>
    <groupId>org.igniterealtime.smack</groupId>
    <artifactId>smack-core</artifactId>
    <version>4.2.0-alpha1</version>
</dependency>

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-io</artifactId>
    <version>1.3.2</version>
</dependency>

<dependency>
    <groupId>ca.juliusdavies</groupId>
    <artifactId>not-yet-commons-ssl</artifactId>
    <version>0.3.11</version>
</dependency>
 <dependency>
       <groupId>javax.ws.rs</groupId>
       <artifactId>javax.ws.rs-api</artifactId>
       <version>2.0</version>
    </dependency>
    <dependency>
       <groupId>org.glassfish.jersey.media</groupId>
       <artifactId>jersey-media-moxy</artifactId>
       <version>2.8</version>
    </dependency>
    <dependency>
        <groupId>org.glassfish.jersey.core</groupId>
        <artifactId>jersey-common</artifactId>
        <version>2.8</version>
    </dependency>

    <dependency>
  <groupId>org.glassfish.jersey.core</groupId>
  <artifactId>jersey-client</artifactId>
  <version>2.8</version>
</dependency>

</dependencies>

Solution

You must add a security provider to use encryption classes such as x509trustmanager and x509certificate

You can add providers at any time You must do this before using these classes

The following is an example of how to add a security provider in Java:

//check if provider is not already added
Provider aProvider = Security.getProvider("MyProvider");
if (aProvider == null) {
    //add provider
    Security.addProvider(new MyProvider());
}

Myprovider is just a placeholder You must import a provider (such as bouncycastle) or use a provider provided by sun