javax.nameing.CommunicationException： simple bind failed

当尝试使用简单的LDAP应用程序连接到LDAP服务器时，我收到一个错误，指出“简单绑定失败”。我假设这与某种绑定有关。我在另一个应用程序的属性文件中有一个绑定属性，但不确定如何将该属性传递给此程序。

我是否需要添加更多详细信息？

法典

import javax.naming.directory.*;   
import javax.naming.*;   
import java.util.Vector;   
import java.util.Enumeration;   
import java.util.Properties;   
public class SearchLDAP {   
    public static void main(String[] args) {   
        String base = "";   

        String filter = "(objectclass=*)";   

        Properties env = new Properties();   

        env.put(DirContext.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");   
        env.put(DirContext.PROVIDER_URL,"ldaps://misguided.com.au:343"); 

        try {   

            System.out.println("11");
            DirContext dc = new InitialDirContext(env);
            System.out.println("22");

            SearchControls sc = new SearchControls();   
            sc.setSearchScope(SearchControls.OBJECT_SCOPE);   
            NamingEnumeration ne = null;   

            ne = dc.search(base, filter, sc);   

            while (ne.hasMore()) {   
                SearchResult sr = (SearchResult) ne.next();   
                System.out.println(sr.toString()+"\n");   
            }   
            dc.close();   
        } catch (NamingException nex) {   
            System.err.println("Error: " + nex.getMessage());   
            nex.printStackTrace();
        }   
    }   
}  

我得到的错误是

错误

11
Error: simple bind failed: XXXX.XXX.XXXX.net:808
javax.naming.CommunicationException: simple bind failed: misguided.com.au:343 [Root exception is 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 com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:215)
    at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2740)
    at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:316)
    at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:193)