diff --git a/webgoat-lessons/sql-injection/src/main/java/org/owasp/webgoat/sql_injection/introduction/SqlInjectionLesson10.java b/webgoat-lessons/sql-injection/src/main/java/org/owasp/webgoat/sql_injection/introduction/SqlInjectionLesson10.java
index 79a6151531..a24e39ae7d 100644
--- a/webgoat-lessons/sql-injection/src/main/java/org/owasp/webgoat/sql_injection/introduction/SqlInjectionLesson10.java
+++ b/webgoat-lessons/sql-injection/src/main/java/org/owasp/webgoat/sql_injection/introduction/SqlInjectionLesson10.java
@@ -1,106 +1,109 @@
-
-/*
- * This file is part of WebGoat, an Open Web Application Security Project utility. For details, please see http://www.owasp.org/
- *
- * Copyright (c) 2002 - 2019 Bruce Mayhew
- *
- * This program is free software; you can redistribute it and/or modify it under the terms of the
- * GNU General Public License as published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
- * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along with this program; if
- * not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- *
- * Getting Source ==============
- *
- * Source for this application is maintained at https://github.com/WebGoat/WebGoat, a repository for free software projects.
- */
-
-package org.owasp.webgoat.sql_injection.introduction;
-
-import org.owasp.webgoat.LessonDataSource;
-import org.owasp.webgoat.assignments.AssignmentEndpoint;
-import org.owasp.webgoat.assignments.AssignmentHints;
-import org.owasp.webgoat.assignments.AttackResult;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.ResponseBody;
-import org.springframework.web.bind.annotation.RestController;
-
-import java.sql.Connection;
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.sql.Statement;
-
-@RestController
-@AssignmentHints(value = {"SqlStringInjectionHint.10.1", "SqlStringInjectionHint.10.2", "SqlStringInjectionHint.10.3", "SqlStringInjectionHint.10.4", "SqlStringInjectionHint.10.5", "SqlStringInjectionHint.10.6"})
-public class SqlInjectionLesson10 extends AssignmentEndpoint {
-
-    private final LessonDataSource dataSource;
-
-    public SqlInjectionLesson10(LessonDataSource dataSource) {
-        this.dataSource = dataSource;
-    }
-
-    @PostMapping("/SqlInjection/attack10")
-    @ResponseBody
-    public AttackResult completed(@RequestParam String action_string) {
-        return injectableQueryAvailability(action_string);
-    }
-
-    protected AttackResult injectableQueryAvailability(String action) {
-        StringBuffer output = new StringBuffer();
-        String query = "SELECT * FROM access_log WHERE action LIKE '%" + action + "%'";
-
-        try (Connection connection = dataSource.getConnection()) {
-            try {
-                Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
-                ResultSet results = statement.executeQuery(query);
-
-                if (results.getStatement() != null) {
-                    results.first();
-                    output.append(SqlInjectionLesson8.generateTable(results));
-                    return failed(this).feedback("sql-injection.10.entries").output(output.toString()).build();
-                } else {
-                    if (tableExists(connection)) {
-                        return failed(this).feedback("sql-injection.10.entries").output(output.toString()).build();
-                    } else {
-                        return success(this).feedback("sql-injection.10.success").build();
-                    }
-                }
-            } catch (SQLException e) {
-                if (tableExists(connection)) {
-                    return failed(this).output("<span class='feedback-negative'>" + e.getMessage() + "</span><br>" + output.toString()).build();
-                } else {
-                    return success(this).feedback("sql-injection.10.success").build();
-                }
-            }
-
-        } catch (Exception e) {
-            return failed(this).output("<span class='feedback-negative'>" + e.getMessage() + "</span>").build();
-        }
-    }
-
-    private boolean tableExists(Connection connection) {
-        try {
-            Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
-            ResultSet results = stmt.executeQuery("SELECT * FROM access_log");
-            int cols = results.getMetaData().getColumnCount();
-            return (cols > 0);
-        } catch (SQLException e) {
-            String errorMsg = e.getMessage();
-            if (errorMsg.contains("object not found: ACCESS_LOG")) {
-                return false;
-            } else {
-                System.err.println(e.getMessage());
-                return false;
-            }
-        }
-    }
-
-}
+
+/*
+ * This file is part of WebGoat, an Open Web Application Security Project utility. For details, please see http://www.owasp.org/
+ *
+ * Copyright (c) 2002 - 2019 Bruce Mayhew
+ *
+ * This program is free software; you can redistribute it and/or modify it under the terms of the
+ * GNU General Public License as published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+ * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program; if
+ * not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Getting Source ==============
+ *
+ * Source for this application is maintained at https://github.com/WebGoat/WebGoat, a repository for free software projects.
+ */
+
+package org.owasp.webgoat.sql_injection.introduction;
+
+import org.owasp.webgoat.LessonDataSource;
+import java.sql.PreparedStatement;
+import org.owasp.webgoat.assignments.AssignmentEndpoint;
+import org.owasp.webgoat.assignments.AssignmentHints;
+import org.owasp.webgoat.assignments.AttackResult;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+@RestController
+@AssignmentHints(value = {"SqlStringInjectionHint.10.1", "SqlStringInjectionHint.10.2", "SqlStringInjectionHint.10.3", "SqlStringInjectionHint.10.4", "SqlStringInjectionHint.10.5", "SqlStringInjectionHint.10.6"})
+public class SqlInjectionLesson10 extends AssignmentEndpoint {
+
+    private final LessonDataSource dataSource;
+
+    public SqlInjectionLesson10(LessonDataSource dataSource) {
+        this.dataSource = dataSource;
+    }
+
+    @PostMapping("/SqlInjection/attack10")
+    @ResponseBody
+    public AttackResult completed(@RequestParam String action_string) {
+        return injectableQueryAvailability(action_string);
+    }
+
+    protected AttackResult injectableQueryAvailability(String action) {
+        StringBuffer output = new StringBuffer();
+        String query = "SELECT * FROM access_log WHERE action LIKE " + "?";
+
+        try (Connection connection = dataSource.getConnection()) {
+            try {
+                PreparedStatement statement = connection.prepareStatement(query, ResultSet.TYPE_SCROLL_INSENSITIVE,
+                        ResultSet.CONCUR_READ_ONLY);
+                statement.setString(1, "%" + action + "%");
+                ResultSet results = statement.executeQuery();
+
+                if (results.getStatement() != null) {
+                    results.first();
+                    output.append(SqlInjectionLesson8.generateTable(results));
+                    return failed(this).feedback("sql-injection.10.entries").output(output.toString()).build();
+                } else {
+                    if (tableExists(connection)) {
+                        return failed(this).feedback("sql-injection.10.entries").output(output.toString()).build();
+                    } else {
+                        return success(this).feedback("sql-injection.10.success").build();
+                    }
+                }
+            } catch (SQLException e) {
+                if (tableExists(connection)) {
+                    return failed(this).output("<span class='feedback-negative'>" + e.getMessage() + "</span><br>" + output.toString()).build();
+                } else {
+                    return success(this).feedback("sql-injection.10.success").build();
+                }
+            }
+
+        } catch (Exception e) {
+            return failed(this).output("<span class='feedback-negative'>" + e.getMessage() + "</span>").build();
+        }
+    }
+
+    private boolean tableExists(Connection connection) {
+        try {
+            Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
+            ResultSet results = stmt.executeQuery("SELECT * FROM access_log");
+            int cols = results.getMetaData().getColumnCount();
+            return (cols > 0);
+        } catch (SQLException e) {
+            String errorMsg = e.getMessage();
+            if (errorMsg.contains("object not found: ACCESS_LOG")) {
+                return false;
+            } else {
+                System.err.println(e.getMessage());
+                return false;
+            }
+        }
+    }
+
+}