Spring tool suite - console error - whitelabel Error page - access denied

Question

Spring boot sample program with Mysql backend. very simple code. I checked application. properties, access to the DB etc. No clue why I am getting this error.

POM.XML

        <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
    <parent>
          <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.2.0.RELEASE</version>
         <relativePath/> <!-- lookup parent from repository -->
    </parent>
 <groupId>com.skb.course.apis</groupId>
<artifactId>library-apis</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>library-apis</name>
<description>Project for developing Library APIs</description>

<properties>
    <java.version>1.8</java.version>
</properties>

 <dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <!-- JPA Data (We are going to use Repositories, Entiries, Hibernate, etc...) -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <!-- For MySQL Connector-J -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>

    <!-- For implementing API Security -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>

    <!-- For handling JWT related functionality-->
    <dependency>
        <groupId>com.auth0</groupId>
        <artifactId>java-jwt</artifactId>
        <version>3.8.0</version>
    </dependency>

    <!-- Test related dependencies -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
        <exclusions>
            <exclusion>
                <groupId>org.junit.vintage</groupId>
                <artifactId>junit-vintage-engine</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.h2database</groupId>
        <artifactId>h2</artifactId>
        <scope>test</scope>
    </dependency>

    <!-- Used for Integration Tests. Spring's TestRestTemplate throws an error while sending PUT requests with
     authorization error: java.net.HttpRetryException: cannot retry due to server authentication, in streaming mode
     Therefore we need to use Apaches's HTTP client. Please refer:
     https://stackoverflow.com/questions/16748969/java-net-httpretryexception-cannot-retry-due-to-server-authentication-in-stream
        -->
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

Console has no errors and tomcat is configured to run on 3000 port

application.properties file

Mysql db showing list of databaseds

Theere is data available in the PUBLISHER TABLE. but access denied error is thrown

Rest controller code

package com.skb.course.apis.libraryapis.publisher;

 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;

 import javax.validation.Valid;
 import java.util.UUID;

 @RestController
 @RequestMapping(path = "/v1/publishers")
 public class PublisherController {

 private static Logger logger = 
 LoggerFactory.getLogger(PublisherController.class);

 private PublisherService publisherService;

   public PublisherController(PublisherService publisherService) {
    this.publisherService = publisherService;
   }

   @GetMapping(path = "/{publisherId}")
   public ResponseEntity<?> getPublisher(@PathVariable Integer publisherId,
        @RequestHeader(value = "Trace-Id", defaultValue = "") String traceId)
        throws LibraryResourceNotFoundException {

    if (!LibraryApiUtils.doesStringValueExist(traceId)) {
        traceId = UUID.randomUUID().toString();
    }

    return new ResponseEntity<>(publisherService.getPublisher(publisherId, traceId), HttpStatus.OK);
}

}