title: Could not find class [org.springframework.boot.autoconfigure.condition.ConditionalOnJava$JavaVersion]
body: <p>i use intellij and java 1.8 for running my springboot</p>
  <p>i have tried to create main jar like this on my code :</p>
  <pre><code>@SpringBootApplication
  @RestController
  public class DemoApplication {
  
      public static void main(String[] args) {
          SpringApplication.run(DemoApplication.class, args);
      }
  
      private DemoMetricReaderWriter demoMetricReaderWriter = new DemoMetricReaderWriter();
  
      @Bean
      @ExportMetricReader
      @ExportMetricWriter
      DemoMetricReaderWriter getReader() {
          return demoMetricReaderWriter;
      }
  
      @RequestMapping(&quot;/&quot;)
      String home() throws Exception {
          long start = System.currentTimeMillis();
  
          // insert up to 2 second delay for a wider range of response times
          Thread.sleep((long) (Math.random() * 2000));
  
          // let that delay become the gauge.bar metric value
          long barValue = System.currentTimeMillis() - start;
  
          demoMetricReaderWriter.updateMetrics(barValue);
          return &quot;Hello World!&quot;;
      }
  }
  </code></pre>
  <p>but when i build and run my jar i got error like this. and i have try to fix but i don't know what is exactly problem for this</p>
  <pre><code>org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.example.demo.DemoApplication]; nested exception is java.lang.IllegalArgumentException: Could not find class [org.springframework.boot.autoconfigure.condition.ConditionalOnJava$JavaVersion]
  </code></pre>
  <p>this is my gradle.build for create this apps.</p>
  <pre><code>    plugins {
      id 'org.springframework.boot' version '2.5.1'
      id 'io.spring.dependency-management' version '1.0.11.RELEASE'
      id 'java'
  }
  jar {
      manifest {
          attributes 'Main-Class': 'com.example.demo.DemoApplication'
      }
  }
  
  group = 'com.example'
  version = '0.0.1-SNAPSHOT'
  sourceCompatibility = '1.8'
  
  configurations {
      all {
          exclude group: 'org.springframework.boot', module: 'spring-boot-starter-logging'
          exclude group: 'ch.qos.logback', module: 'logback-classic'
      }
      developmentOnly
      runtimeClasspath {
          extendsFrom developmentOnly
      }
      compileOnly {
          extendsFrom annotationProcessor
      }
  }
  
  repositories {
      mavenCentral()
      google()
  }
  
  dependencies {
      // spring boot
      implementation ('org.springframework.boot:spring-boot-starter-web') {
          exclude group: 'org.springframework.boot', module: 'spring-boot-starter-tomcat'
      }
      implementation 'org.springframework.boot:spring-boot-starter-undertow'
      implementation 'org.springframework.boot:spring-boot-starter-validation'
      annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'
  
      // health check
      implementation 'org.springframework.boot:spring-boot-actuator:1.5.14.RELEASE'
  
      // logging
      implementation 'org.springframework.boot:spring-boot-starter-log4j2'
      implementation 'com.lmax:disruptor:3.4.2'
  
      // database
      implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
      implementation 'org.springframework.boot:spring-boot-starter-data-mongodb:2.5.5'
      runtimeOnly 'com.oracle.ojdbc:ojdbc8'
      runtimeOnly 'org.postgresql:postgresql'
  
  
      //datadog
      implementation 'com.google.code.gson:gson:2.8.2'
      implementation 'org.apache.httpcomponents:httpclient:4.5.3'
      implementation 'org.springframework.boot:spring-boot-actuator:1.5.14.RELEASE'
  
  
      // lombok
      compileOnly 'org.projectlombok:lombok'
  
  
  
      // testing
      testImplementation 'org.mockito:mockito-core:3.9.0'
      testImplementation('org.springframework.boot:spring-boot-starter-test') {
          exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
      }
      testImplementation 'org.springframework.boot:spring-boot-starter-test'
      testImplementation 'org.springframework.security:spring-security-test'
      testImplementation 'io.projectreactor:reactor-test'
      annotationProcessor 'org.projectlombok:lombok'
  }
  
  test {
      useJUnitPlatform()
  }
  </code></pre>
  <p>my question what is wrong on my code ? for run this code i use gradle i have tried use example from internet but still getting error.... how to fix this problem ?</p>