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3 changes: 3 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -11,3 +11,6 @@ The client need to send JWT token for each request .By implementing the abstract
1)Create a JSON with SignUP request and submit to /signup api.
2)Create the JSON for SignIn request with username and password.The JWT rest API will return JWT token.
3)Send the token in authorization request headeralong along with request for api call


Check
Original file line number Diff line number Diff line change
@@ -0,0 +1,43 @@
import java.util.Calendar;

public class ExampleUsage {
public static void main(String[] args) {
// Create an instance of DummyTableValues
DummyTableValues dummyTableValues = new DummyTableValues();

// Set values for the parameters (example values used here)
dummyTableValues.setParam1(1); // Assuming this is a Number
dummyTableValues.setParam2(Calendar.getInstance()); // Assuming this is a Calendar instance
dummyTableValues.setParam3(100.0); // Assuming this is a Number
dummyTableValues.setParam4(200.0); // Assuming this is a Number
dummyTableValues.setParam5(50.0); // Assuming this is a Number
dummyTableValues.setParam6(300.0); // Assuming this is a Number
dummyTableValues.setParam7(25.0); // Assuming this is a Number
dummyTableValues.setParam8(400.0); // Assuming this is a Number
dummyTableValues.setParam9(150.0); // Assuming this is a Number
dummyTableValues.setParam10(1000); // Assuming this is a Number
dummyTableValues.setParam11(2000); // Assuming this is a Number
dummyTableValues.setParam12(500); // Assuming this is a Number
dummyTableValues.setParam13(10000); // Assuming this is a Number
dummyTableValues.setParam14(15000); // Assuming this is a Number

// Create Calendar instances for param15 and param16
Calendar param15 = Calendar.getInstance();
Calendar param16 = Calendar.getInstance();

// Set these Calendar instances to dummyTableValues
dummyTableValues.setParam15(param15);
dummyTableValues.setParam16(param16);

// Assuming you have an instance of the class containing insertDummyTableValues method
ExampleUsage exampleUsage = new ExampleUsage();
exampleUsage.insertDummyTableValues(dummyTableValues);
}

// Method to invoke the insertDummyTableValues
public void insertDummyTableValues(DummyTableValues dummyTableValues) {

MyDAO.insertDummyTableValues(dummyTableValues);

}
Comment on lines +37 to +42
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🛠️ Refactor suggestion

Add error handling for database operations.

The method delegates to MyDAO.insertDummyTableValues without any error handling. Database operations can fail for various reasons (connection issues, constraint violations, etc.), and these errors should be handled appropriately.

 // Method to invoke the insertDummyTableValues
-public void insertDummyTableValues(DummyTableValues dummyTableValues) {
+public static void insertDummyTableValues(DummyTableValues dummyTableValues) {
+    try {
        MyDAO.insertDummyTableValues(dummyTableValues);
-        
+    } catch (Exception e) {
+        // Handle specific exceptions appropriately
+        // e.g., log the error, show user-friendly message, etc.
+        System.err.println("Failed to insert dummy table values: " + e.getMessage());
+        // Consider rethrowing or wrapping in a custom exception depending on your error handling strategy
+    }
 }

Committable suggestion skipped: line range outside the PR's diff.

}
Original file line number Diff line number Diff line change
@@ -0,0 +1,29 @@
public class MyDAO extends HibernateSessionManager {
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⚠️ Potential issue

Missing imports and package declaration.

The class extends HibernateSessionManager but there are no import statements for this parent class or other required classes like IISSystemException, LinkedHashMap, and DummyTableValues. Also missing a package declaration.

Add the necessary imports and package declaration at the top of the file:

+package com.innovativeintelli.authandautherization;
+
+import java.util.LinkedHashMap;
+import com.path.to.HibernateSessionManager;
+import com.path.to.IISSystemException;
+import com.path.to.DummyTableValues;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 public class MyDAO extends HibernateSessionManager {
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Suggested change
public class MyDAO extends HibernateSessionManager {
package com.innovativeintelli.authandautherization;
import java.util.LinkedHashMap;
import com.path.to.HibernateSessionManager;
import com.path.to.IISSystemException;
import com.path.to.DummyTableValues;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MyDAO extends HibernateSessionManager {


private static final String INSERT_DUMMY_TABLE_VALUES =
"INSERT INTO DUMMY_TABLE " +
"(COLUMN_1, COLUMN_2, COLUMN_3, COLUMN_4, COLUMN_5, " +
"COLUMN_6, COLUMN_7, COLUMN_8, COLUMN_9, " +
"COLUMN_10, COLUMN_11, COLUMN_12, COLUMN_13, COLUMN_14, COLUMN_15, " +
"COLUMN_16, COLUMN_17, COLUMN_18, COLUMN_19, " +
"COLUMN_20) VALUES " +
"(TO_NUMBER(:param1), TO_DATE(:param2,'mm/dd/yyyy'), TO_NUMBER(:param3), TO_NUMBER(:param4), TO_NUMBER(:param5), " +
"TO_NUMBER(:param6), TO_NUMBER(:param7), TO_NUMBER(:param8), TO_NUMBER(:param9), " +
"TO_NUMBER(:param10), TO_NUMBER(:param11), TO_NUMBER(:param12), TO_NUMBER(:param13), TO_NUMBER(:param14), " +
":param15, :param16, TO_NUMBER(:param17), TO_NUMBER(:param18), TO_NUMBER(:param19), " +
"TO_NUMBER(:param20))";
Comment on lines +3 to +14
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🛠️ Refactor suggestion

SQL statement defined but not utilized.

The SQL statement is well-structured using named parameters (which helps prevent SQL injection), but there are no methods implementing database operations using this statement. Also, it appears to be Oracle-specific due to the use of TO_NUMBER and TO_DATE functions.

Consider adding a method to execute this SQL statement:

public boolean insertDummyValues(Map<String, Object> params) {
    try {
        Session session = getSession();
        Query query = session.createSQLQuery(INSERT_DUMMY_TABLE_VALUES);
        
        // Set parameters
        for (Map.Entry<String, Object> entry : params.entrySet()) {
            query.setParameter(entry.getKey(), entry.getValue());
        }
        
        int result = query.executeUpdate();
        return result > 0;
    } catch (Exception e) {
        logger.error("Error inserting dummy values", e);
        return false;
    }
}


@SuppressWarnings({ "rawtypes" })
public static void insertDummyTableValues(DummyTableValues dummyTableValues) {
logger.info(" Inside insertDummyTableValues method ");
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⚠️ Potential issue

Logger not properly declared or initialized.

The code uses logger without declaring or initializing it anywhere in the visible code.

Add a logger declaration at the class level:

 public class MyDAO extends HibernateSessionManager {
+
+    private static final Logger logger = LoggerFactory.getLogger(MyDAO.class);
 
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Suggested change
logger.info(" Inside insertDummyTableValues method ");
package com.innovativeintelli.authandautherization;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MyDAO extends HibernateSessionManager {
private static final Logger logger = LoggerFactory.getLogger(MyDAO.class);
// ... other class members and methods ...
public void insertDummyTableValues() {
logger.info(" Inside insertDummyTableValues method ");
// ... method implementation ...
}
// ... possible additional code ...
}

try {
LinkedHashMap<String, Object> param = setQueryParameters(dummyTableValues, true);
this.createNativeQueryCUD(INSERT_DUMMY_TABLE_VALUES, param);
this.flush();
logger.info(" Exiting insertDummyTableValues method ");
} catch (Exception exception) {
logger.error("DummyTableValuesDAO.insertDummyTableValues(): ", exception);
throw new IISSystemException("DummyTableValuesDAO.insertDummyTableValues(): ", exception);
}
Comment on lines +24 to +27
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🛠️ Refactor suggestion

Inconsistent class naming and overly broad exception catching.

The error message uses "DummyTableValuesDAO" but the class is named "MyDAO", which is inconsistent. Also, catching Exception broadly is typically discouraged in favor of more specific exception types.

Fix the inconsistent naming and consider catching more specific exceptions:

     } catch (Exception exception) {
-        logger.error("DummyTableValuesDAO.insertDummyTableValues(): ", exception);
-        throw new IISSystemException("DummyTableValuesDAO.insertDummyTableValues(): ", exception);
+        logger.error("MyDAO.insertDummyTableValues(): ", exception);
+        throw new IISSystemException("MyDAO.insertDummyTableValues(): ", exception);
     }

For better exception handling, consider:

-    } catch (Exception exception) {
-        logger.error("DummyTableValuesDAO.insertDummyTableValues(): ", exception);
-        throw new IISSystemException("DummyTableValuesDAO.insertDummyTableValues(): ", exception);
+    } catch (HibernateException he) {
+        logger.error("MyDAO.insertDummyTableValues(): Database error", he);
+        throw new IISSystemException("Database operation failed", he);
+    } catch (Exception exception) {
+        logger.error("MyDAO.insertDummyTableValues(): Unexpected error", exception);
+        throw new IISSystemException("Unexpected error during data insertion", exception);
     }
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Suggested change
} catch (Exception exception) {
logger.error("DummyTableValuesDAO.insertDummyTableValues(): ", exception);
throw new IISSystemException("DummyTableValuesDAO.insertDummyTableValues(): ", exception);
}
} catch (HibernateException he) {
logger.error("MyDAO.insertDummyTableValues(): Database error", he);
throw new IISSystemException("Database operation failed", he);
} catch (Exception exception) {
logger.error("MyDAO.insertDummyTableValues(): Unexpected error", exception);
throw new IISSystemException("Unexpected error during data insertion", exception);
}

}
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,90 @@
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

Comment on lines +1 to +9
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🛠️ Refactor suggestion

Add logging framework import

The code currently uses e.printStackTrace() for error handling, which is not suitable for production. Consider adding a proper logging framework.

Add imports for a logging framework:

+import java.util.logging.Logger;
+import java.util.logging.Level;

Or better yet, use SLF4J with an implementation like Logback:

+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class CodeWithIssues {
private static final String DB_URL = "jdbc:mysql://localhost:3306/test";
private static final String USER = "root";
private static final String PASS = "password";
Comment on lines +11 to +13
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⚠️ Potential issue

Severe security vulnerability: Hardcoded database credentials

Storing database credentials directly in code is a significant security risk. If this code is committed to version control, credentials are exposed to anyone with repository access.

Replace hardcoded credentials with environment variables or a secure configuration system:

-    private static final String DB_URL = "jdbc:mysql://localhost:3306/test";
-    private static final String USER = "root";
-    private static final String PASS = "password";
+    private static final String DB_URL = System.getenv("DB_URL");
+    private static final String USER = System.getenv("DB_USER");
+    private static final String PASS = System.getenv("DB_PASSWORD");
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Suggested change
private static final String DB_URL = "jdbc:mysql://localhost:3306/test";
private static final String USER = "root";
private static final String PASS = "password";
private static final String DB_URL = System.getenv("DB_URL");
private static final String USER = System.getenv("DB_USER");
private static final String PASS = System.getenv("DB_PASSWORD");

private static List<String> list = new ArrayList<>();

public static void main(String[] args) {
String str = null;
System.out.println(str.length());
Comment on lines +17 to +18
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⚠️ Potential issue

NullPointerException will be thrown

The code is attempting to call length() on a null string reference, which will result in a NullPointerException at runtime.

Add null check before calling methods on potentially null objects:

-        String str = null;
-        System.out.println(str.length());
+        String str = null;
+        System.out.println(str != null ? str.length() : "String is null");
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Suggested change
String str = null;
System.out.println(str.length());
String str = null;
System.out.println(str != null ? str.length() : "String is null");


while (true) {
list.add("Leaking memory...");
}
Comment on lines +20 to +22
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⚠️ Potential issue

Infinite loop causing memory leak

This infinite loop with no exit condition continuously adds strings to a list, causing the application to eventually run out of memory with an OutOfMemoryError.

The infinite loop should be removed or modified to include a termination condition:

-        while (true) {
-            list.add("Leaking memory...");
-        }
+        // If you need to populate the list, use a bounded loop
+        for (int i = 0; i < 100; i++) {
+            list.add("Item " + i);
+        }
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
while (true) {
list.add("Leaking memory...");
}
// If you need to populate the list, use a bounded loop
for (int i = 0; i < 100; i++) {
list.add("Item " + i);
}


if (false) {
System.out.println("This will never be executed.");
}
Comment on lines +24 to +26
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🛠️ Refactor suggestion

Dead code: Unreachable condition

This if block will never execute since the condition is always false. This is dead code that misleads readers and clutters the codebase.

Remove this unreachable code block:

-        if (false) {
-            System.out.println("This will never be executed.");
-        }
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Suggested change
if (false) {
System.out.println("This will never be executed.");
}


for (int i = 0; i < 10; i++) {
System.out.println("Iteration: " + i);
}

int[] arr = {1, 2, 3};
for (int i = 0; i <= arr.length; i++) {
System.out.println(arr[i]);
}
Comment on lines +32 to +35
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⚠️ Potential issue

Array index out of bounds exception

The loop condition i <= arr.length will cause an ArrayIndexOutOfBoundsException in the last iteration when i equals arr.length.

Fix the loop condition to properly handle array bounds:

-        for (int i = 0; i <= arr.length; i++) {
-            System.out.println(arr[i]);
+        for (int i = 0; i < arr.length; i++) {
+            System.out.println(arr[i]);
+        }
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
int[] arr = {1, 2, 3};
for (int i = 0; i <= arr.length; i++) {
System.out.println(arr[i]);
}
int[] arr = {1, 2, 3};
for (int i = 0; i < arr.length; i++) {
System.out.println(arr[i]);
}


if (true || str == null) {
System.out.println("This condition is always true.");
}

return;
System.out.println("This code is unreachable.");
Comment on lines +41 to +42
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⚠️ Potential issue

Unreachable code after return statement

Code after a return statement will never be executed, making this line unreachable.

Remove or relocate the unreachable code:

-        return;
-        System.out.println("This code is unreachable.");
+        System.out.println("This code is now reachable.");
+        return;
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Suggested change
return;
System.out.println("This code is unreachable.");
System.out.println("This code is now reachable.");
return;


String userInput = "admin' OR '1'='1";
String query = "SELECT * FROM users WHERE username = '" + userInput + "'";
executeQuery(query);
Comment on lines +44 to +46
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⚠️ Potential issue

SQL injection vulnerability

Concatenating user input directly into SQL queries creates a severe security vulnerability allowing attackers to manipulate your database.

Use prepared statements to safely handle user input:

-        String userInput = "admin' OR '1'='1";
-        String query = "SELECT * FROM users WHERE username = '" + userInput + "'";
-        executeQuery(query);
+        String userInput = "admin' OR '1'='1";
+        executeQuerySafely("SELECT * FROM users WHERE username = ?", userInput);

Add a new method:

private static void executeQuerySafely(String sql, String param) {
    try (Connection conn = DriverManager.getConnection(DB_URL, USER, PASS);
         PreparedStatement stmt = conn.prepareStatement(sql)) {
        stmt.setString(1, param);
        ResultSet rs = stmt.executeQuery();
        while (rs.next()) {
            System.out.println(rs.getString(1));
        }
    } catch (SQLException e) {
        logger.error("Database error", e);
    }
}


ExecutorService executor = Executors.newFixedThreadPool(2);
Runnable task1 = () -> { list.add("Task 1"); };
Runnable task2 = () -> { list.remove(0); };
executor.submit(task1);
executor.submit(task2);

Comment on lines +48 to +53
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⚠️ Potential issue

Concurrency issues with shared resource

Multiple threads are modifying a shared list without proper synchronization, which can lead to race conditions and data corruption.

Use thread-safe collections or proper synchronization:

-    private static List<String> list = new ArrayList<>();
+    private static List<String> list = Collections.synchronizedList(new ArrayList<>());

Or use explicit synchronization:

-        Runnable task1 = () -> { list.add("Task 1"); };
-        Runnable task2 = () -> { list.remove(0); };
+        Runnable task1 = () -> { 
+            synchronized(list) {
+                list.add("Task 1"); 
+            }
+        };
+        Runnable task2 = () -> { 
+            synchronized(list) {
+                if (!list.isEmpty()) {
+                    list.remove(0);
+                }
+            }
+        };

Also, properly shut down the executor:

         executor.submit(task1);
         executor.submit(task2);
+        executor.shutdown();

final String resource1 = "Resource 1";
final String resource2 = "Resource 2";
Thread t1 = new Thread(() -> {
synchronized (resource1) {
try { Thread.sleep(100); } catch (InterruptedException e) {}
synchronized (resource2) {
System.out.println("Thread 1 locked both resources.");
}
}
});

Thread t2 = new Thread(() -> {
synchronized (resource2) {
try { Thread.sleep(100); } catch (InterruptedException e) {}
synchronized (resource1) {
System.out.println("Thread 2 locked both resources.");
}
}
});

t1.start();
t2.start();
}
Comment on lines +54 to +76
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⚠️ Potential issue

Deadlock scenario created by nested locks

The code creates a classic deadlock scenario where Thread 1 locks resource1 then attempts to lock resource2, while Thread 2 locks resource2 then attempts to lock resource1.

To prevent deadlocks, always acquire locks in the same order:

-        Thread t1 = new Thread(() -> {
-            synchronized (resource1) {
-                try { Thread.sleep(100); } catch (InterruptedException e) {}
-                synchronized (resource2) {
-                    System.out.println("Thread 1 locked both resources.");
-                }
-            }
-        });
-
-        Thread t2 = new Thread(() -> {
-            synchronized (resource2) {
-                try { Thread.sleep(100); } catch (InterruptedException e) {}
-                synchronized (resource1) {
-                    System.out.println("Thread 2 locked both resources.");
-                }
-            }
-        });
+        Thread t1 = new Thread(() -> {
+            synchronized (resource1) {
+                try { Thread.sleep(100); } catch (InterruptedException e) {}
+                synchronized (resource2) {
+                    System.out.println("Thread 1 locked both resources.");
+                }
+            }
+        });
+
+        Thread t2 = new Thread(() -> {
+            synchronized (resource1) {
+                try { Thread.sleep(100); } catch (InterruptedException e) {}
+                synchronized (resource2) {
+                    System.out.println("Thread 2 locked both resources.");
+                }
+            }
+        });

A better approach would be using higher-level concurrency utilities like Lock interfaces with timeout capabilities:

private static final ReentrantLock lock1 = new ReentrantLock();
private static final ReentrantLock lock2 = new ReentrantLock();

// In thread code:
if (lock1.tryLock(100, TimeUnit.MILLISECONDS)) {
    try {
        if (lock2.tryLock(100, TimeUnit.MILLISECONDS)) {
            try {
                // Do work with both locks
            } finally {
                lock2.unlock();
            }
        }
    } finally {
        lock1.unlock();
    }
}


private static void executeQuery(String query) {
try {
Connection conn = DriverManager.getConnection(DB_URL, USER, PASS);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
System.out.println(rs.getString(1));
}
} catch (Exception e) {
e.printStackTrace();
}
}
Comment on lines +78 to +89
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⚠️ Potential issue

Multiple issues in database query method

The executeQuery method has several problems:

  1. No resource management (Connection, Statement, and ResultSet not closed)
  2. Vulnerability to SQL injection
  3. Generic exception handling without specific error responses

Implement proper resource management and prepared statements:

-    private static void executeQuery(String query) {
-        try {
-            Connection conn = DriverManager.getConnection(DB_URL, USER, PASS);
-            Statement stmt = conn.createStatement();
-            ResultSet rs = stmt.executeQuery(query);
-            while (rs.next()) {
-                System.out.println(rs.getString(1));
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
+    private static void executeQuery(String sql, Object... params) {
+        try (Connection conn = DriverManager.getConnection(DB_URL, USER, PASS);
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+            
+            // Set parameters safely
+            for (int i = 0; i < params.length; i++) {
+                stmt.setObject(i + 1, params[i]);
+            }
+            
+            try (ResultSet rs = stmt.executeQuery()) {
+                while (rs.next()) {
+                    System.out.println(rs.getString(1));
+                }
+            }
+        } catch (SQLException e) {
+            // Use a proper logging framework instead of printStackTrace
+            System.err.println("Database error: " + e.getMessage());
+            // Consider rethrowing as a custom exception or handling appropriately
+        }
+    }
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Suggested change
private static void executeQuery(String query) {
try {
Connection conn = DriverManager.getConnection(DB_URL, USER, PASS);
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(query);
while (rs.next()) {
System.out.println(rs.getString(1));
}
} catch (Exception e) {
e.printStackTrace();
}
}
private static void executeQuery(String sql, Object... params) {
try (Connection conn = DriverManager.getConnection(DB_URL, USER, PASS);
PreparedStatement stmt = conn.prepareStatement(sql)) {
// Set parameters safely
for (int i = 0; i < params.length; i++) {
stmt.setObject(i + 1, params[i]);
}
try (ResultSet rs = stmt.executeQuery()) {
while (rs.next()) {
System.out.println(rs.getString(1));
}
}
} catch (SQLException e) {
// Use a proper logging framework instead of printStackTrace
System.err.println("Database error: " + e.getMessage());
// Consider rethrowing as a custom exception or handling appropriately
}
}

}