Disable SSL certificate validation in Java

Question

How can I disable certificate validation in java 8. I am trying to use https to connect to an other server but I keep getting this error:

Exception while providing content: [Thread[RMI TCP Connection(8)-192.168.56.1,5,RMI Runtime], 1549283885696] de.innovas.iaf.base_common.exceptions.NonRecoverableException: CT_0001_0[javax.xml.ws.soap.SOAPFaultException: Marshalling Error: com.sun.istack.SAXException2: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target]
[Thread[RMI TCP Connection(8)-192.168.56.1,5,RMI Runtime], 1549283885696] de.innovas.iaf.base_common.exceptions.NonRecoverableException: CT_0001_0[javax.xml.ws.soap.SOAPFaultException: Marshalling Error: com.sun.istack.SAXException2: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target]
at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:161)
at com.sun.proxy.$Proxy511.generatePdf(Unknown Source)

I tried to fix it by using -Dcom.sun.net.ssl.checkRevocation=false which i found here . I also tried adding my own certificate to the pool using Java Keytool. Both ideas didn't change anything. The problem might be that I generated my own certificate with openssl. That cant be signed by anyone which my result in the error.

It would be nice if I could simply disable SSL checks for testing purposes only. In a production scenario I will have a signed certificate.

Answer 1

It is not advised to disable certificate validation unless it is only for testing purposes. How are you invoking the service in the first place?

If you are using Apache HttpClient:

SSLContext context = SSLContext.getInstance("TLSv1.2");
TrustManager[] trustManager = new TrustManager[] {
    new X509TrustManager() {
       public X509Certificate[] getAcceptedIssuers() {
           return new X509Certificate[0];
       }
       public void checkClientTrusted(X509Certificate[] certificate, String str) {}
       public void checkServerTrusted(X509Certificate[] certificate, String str) {}
    }
};
context.init(null, trustManager, new SecureRandom());

SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(context,
        SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);

HttpClient client = HttpClientBuilder.create().setSSLSocketFactory(socketFactory).build();

If you are using HttpsURLConnection:

SSLContext context = SSLContext.getInstance("TLSv1.2");
TrustManager[] trustManager = new TrustManager[] {
    new X509TrustManager() {
       public X509Certificate[] getAcceptedIssuers() {
           return new X509Certificate[0];
       }
       public void checkClientTrusted(X509Certificate[] certificate, String str) {}
       public void checkServerTrusted(X509Certificate[] certificate, String str) {}
    }
};
context.init(null, trustManager, new SecureRandom());

HttpsURLConnection.setDefaultSSLSocketFactory(context.getSocketFactory());