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I can't connect to Microsoft SQL Server through Java

I have SQL Server installed through Docker on Windows and I can connect to the database with VS Code through the SQL Server extension, but I can't get it to connect in my Java code. I get the error:
com.microsoft.sqlserver.jdbc.SQLServerException: The driver could not
establish a secure connection to SQL Server by using Secure Sockets
Layer (SSL) encryption. Error: "PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException: unable to
find valid certification path to requested target".
ClientConnectionId:018acf50-eefc-41e8-842a-6b7ef89a84d9
I installed the JDBC driver through Maven:
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<version>11.2.2.jre17</version>
</dependency>
The code:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class ConnectToMSSQL {
public static void main(String[] args) {
// Set connection parameters.
String hostName = "localhost";
String dbName = "testdb";
String user = "SA";
String password = "<password>";
String url = String.format("jdbc:sqlserver://%s;databaseName=%s;user=%s;password=%s", hostName, dbName, user, password);
// Connect to the database.
try (Connection con = DriverManager.getConnection(url)) {
System.out.println("Connection established.");
} catch (SQLException e) {
System.out.println("Connection failed.");
e.printStackTrace();
}
}
}

Access Denied from jdbc to google cloudsql

I am trying to connect to cloudmysql gcp instance using jdbc connection string with ssl enabled. It gives me access denied for user. I followed the following steps
I got the client-key, client-cert, server-ca from cloudmysql instance.
Generated the truststore.jks by keytool from server-ca.pem.
Now below is the snippet. When running getting access denied for user.let me know if anything is missing
import java.sql.*;
import java.util.Properties;
class JdbcTest{
public static void main(String args[]){
try{
Class.forName("com.mysql.jdbc.Driver");
System.setProperty("javax.net.ssl.trustStore","D://truststore.jks");
System.setProperty("javax.net.ssl.trustStorePassword","password");
Connection con=DriverManager.getConnection(
"jdbc:mysql://localhost:3306/dbname?verifyServerCertificate=true&useSSL=true&requireSSL=true", "username", "password");
Statement stmt=con.createStatement();
ResultSet rs=stmt.executeQuery("SHOW DATABASES");
while(rs.next())
System.out.println("test");
con.close();
}catch(Exception e){ e.printStackTrace();}
}
}

Windows authentication failing when connecting to sql server using JDBC

I have SQL server on a machine under the domain DOM005 and I am trying to connect to it using JDBC driver from my local machine that is in another domain. I am using windows authentication for the connection through domain administrator account.
I cannot use "integratedSecurity=true" in my connection URL since both machines are in different domain. Hence I use "authentication=ActiveDirectoryIntegrated" but I am getting the following error:
Exception in thread "main" com.microsoft.sqlserver.jdbc.SQLServerException: Login failed for user 'DOM005\administrator'. ClientConnectionId:84224bcd-d2f1-4386-aadf-397c1ef3eadf
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDatabaseError(SQLServerException.java:217)
at com.microsoft.sqlserver.jdbc.TDSTokenHandler.onEOF(tdsparser.java:251)
at com.microsoft.sqlserver.jdbc.TDSParser.parse(tdsparser.java:81)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.sendLogon(SQLServerConnection.java:3077)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.logon(SQLServerConnection.java:2360)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.access$100(SQLServerConnection.java:43)
at com.microsoft.sqlserver.jdbc.SQLServerConnection$LogonCommand.doExecute(SQLServerConnection.java:2346)
at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:6276)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1793)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1404)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:1068)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectInternal(SQLServerConnection.java:904)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:451)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1014)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at TestJDBCsqlServer.main(TestJDBCsqlServer.java:23)
Here is my code:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class TestJDBCsqlServer {
private static final String SQLSERVER_URL_NTLM = "jdbc:sqlserver://10.20.13.4:1433;databaseName=DB1;authentication=ActiveDirectoryIntegrated";
public static void main(String[] args) throws Exception {
boolean isNTLM = true;
Connection conn = null;
Statement stmt = null;
if(isNTLM){
try{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
conn = DriverManager.getConnection(SQLSERVER_URL_NTLM, "DOM005\\administrator", "abc");
stmt = conn.createStatement();
ResultSet set = stmt.executeQuery("select 1");
System.out.println("NTLM connection is successful");
set.next();
System.out.println(set.getString(1));
}finally{
if(stmt != null)
stmt.close();
if(conn!=null)
conn.close();
}
}
}
}
Can anyone help me resolve the issue?

Unable to connect to SSAS using olap4j on Linux

I wish to connect to SSAS 2012 using Java and have tried olap4j driver for the same.
I am working on Linux (Ubuntu 14.04) platform.
I have read that Olap4j works for Windows but will it work on Linux ?
I have written some Java code which gives runtime error. This error is because the Linux machine is unable to connect to SSAS.
I have set http access and IIS server and using msmdpump.dll to connect.
Below is the Java code and the error.:
CODE
package ssas;
import java.sql.Connection;
//import java.lang.*;
import java.sql.DriverManager;
import java.sql.SQLException;
import org.olap4j.Cell;
import org.olap4j.CellSet;
import org.olap4j.OlapConnection;
import org.olap4j.OlapException;
import org.olap4j.OlapStatement;
import org.olap4j.OlapWrapper;
import org.olap4j.Position;
import org.olap4j.metadata.Member;
public class connexionSSAS
{
public static void main(String[] args) throws ClassNotFoundException,
OlapException {
Class.forName("org.olap4j.driver.xmla.XmlaOlap4jDriver");
Connection connection = null;
try {
connection = DriverManager.getConnection(
"jdbc:xmla:Server=http://01XXXXXXXX/olap/msmdpump.dll;" +
"Catalog=sample_Cube");
} catch (SQLException e) {
e.printStackTrace();
}
if (null == connection) {
System.out.println("Cnul");
}
OlapWrapper wrapper = (OlapWrapper) connection;
OlapConnection olapConnection = null;
try {
olapConnection = wrapper.unwrap(OlapConnection.class);
} catch (SQLException e) {
e.printStackTrace();
}
olapConnection.setCatalog("sample_Cube");
OlapStatement statement = null;
CellSet cellSet = null;
System.out.println(olapConnection.getCatalog());
try {
statement = (OlapStatement) olapConnection.createStatement();
CellSet=statement.executeOlapQuery(
"Summarize(FactDiagnosis,FactDiagnosis[ImportDateKey])");
args}
catch(SQLException e) {
e.printStackTrace();
}
}
}
ERROR
Exception in thread "main" java.lang.RuntimeException: org.olap4j.OlapException: This connection encountered an exception while executing a query.
at org.olap4j.driver.xmla.DeferredNamedListImpl.getList(DeferredNamedListImpl.java:96)
at org.olap4j.driver.xmla.DeferredNamedListImpl.size(DeferredNamedListImpl.java:116)
at org.olap4j.driver.xmla.XmlaOlap4jConnection.getOlapDatabase(XmlaOlap4jConnection.java:451)
at org.olap4j.driver.xmla.XmlaOlap4jConnection.getOlapCatalogs(XmlaOlap4jConnection.java:527)
at org.olap4j.driver.xmla.XmlaOlap4jConnection.setCatalog(XmlaOlap4jConnection.java:483)
at ssas.connexionSSAS.main(connexionSSAS.java:49)
Caused by: org.olap4j.OlapException: This connection encountered an exception while executing a query.
at org.olap4j.driver.xmla.XmlaHelper.createException(XmlaHelper.java:43)
at org.olap4j.driver.xmla.XmlaOlap4jConnection.executeMetadataRequest(XmlaOlap4jConnection.java:878)
at org.olap4j.driver.xmla.XmlaOlap4jDatabaseMetaData.getMetadata(XmlaOlap4jDatabaseMetaData.java:137)
at org.olap4j.driver.xmla.XmlaOlap4jDatabaseMetaData.getMetadata(XmlaOlap4jDatabaseMetaData.java:67)
at org.olap4j.driver.xmla.XmlaOlap4jDatabaseMetaData.getDatabaseProperties(XmlaOlap4jDatabaseMetaData.java:1044)
at org.olap4j.driver.xmla.XmlaOlap4jConnection.makeConnectionPropertyList(XmlaOlap4jConnection.java:324)
at org.olap4j.driver.xmla.XmlaOlap4jConnection.generateRequest(XmlaOlap4jConnection.java:1037)
at org.olap4j.driver.xmla.XmlaOlap4jConnection.populateList(XmlaOlap4jConnection.java:849)
at org.olap4j.driver.xmla.DeferredNamedListImpl.populateList(DeferredNamedListImpl.java:136)
at org.olap4j.driver.xmla.DeferredNamedListImpl.getList(DeferredNamedListImpl.java:90)
... 5 more
This code will run if I comment the statements containing 'OlapConnection'.
Any help would be appreciated.

Connect to MySQL using JDBC driver through a proxy [duplicate]

This question already has an answer here:
MySQL Connect via proxy in Java
(1 answer)
Closed 2 years ago.
In Java, I would like to make a connection to a MySQL server which is on the web from a client computer that is behind a http proxy. I have read few solutions some say http tunnelling might work and some suggest a very old link from oracle which is not available anymore. So the question is:
How can we connect to a MySQL server from a computer which is behind a http proxy?

You can try the following code and see if it works. It worked for me over TCP
package indika.jdbc.connectivity;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
public class ConnectOverProxy {
public static void main(String[] args) {
new ConnectOverProxy();
}
public ConnectOverProxy() {
try {
Class.forName("com.mysql.jdbc.Driver");
Connection conn = null;
Properties info = new Properties();
//info.put("proxy_type", "4"); // SSL Tunneling
info.put("proxy_host", "[proxy host]");
info.put("proxy_port", "[proxy port]");
info.put("proxy_user", "[proxy user]");
info.put("proxy_password", "[proxy password]");
info.put("user", "[db user]");
info.put("password", "[db pass word]");
conn = DriverManager.getConnection("jdbc:mysql://[db host]/",info);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("Select NOW()");
rs.next();
System.out.println("Data- " + rs.getString(1));
rs.close();
stmt.close();
conn.close();
} catch (SQLException er) {
er.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
Also look at "http://www.idssoftware.com/jdbchttps.html", However I have not used this personally.