将SpringBoot应用程序（使用javax.persistence）升级到JDK11

我正在将JDK 8应用程序转换为JDK 11。它使用Gradle构建，并在引擎盖下使用JPA/Hibernate。我已经升级了必要的Gradle模块，Spring Boot现在是2.1，它使用的是Gradle 5.1包装器。它使用QueryDSL JPA注释处理从PostgreSQL数据库构建Q*类

生成脚本中的以下任务生成上述类：

compileJava {
    doFirst {
        generatedSourcesDir.mkdirs();
    }
    options.compilerArgs += [
            '-s', generatedSourcesDir,
    ]

//    dependsOn generateQueryDSL
}

注释掉的QueryDSL生成任务是：

task generateQueryDSL(type: JavaCompile, group: 'build', description: 'Generates the QueryDSL query types') {
    source = sourceSets.main.java
    classpath = configurations.compile + configurations.querydslapt
    options.compilerArgs = [
            "-proc:only",
            "-processor", "com.querydsl.apt.jpa.JPAAnnotationProcessor"
    ]
    destinationDir = generatedSourcesDir
}

运行Gradle compileJava任务时，我收到的主要错误如下：

* What went wrong:
Execution failed for task ':app-base:compileJava'.
> java.lang.NoClassDefFoundError: javax/persistence/Entity

我正在使用以下生成依赖项：

compile group: 'org.eclipse.persistence', name: 'javax.persistence', version: '2.2.1'

自去年夏天以来就没有更新过。有没有办法让JavaCompileGradle任务与JDK11和JPA2.2一起工作

更新2019年2月1日-根据用户要求为API项目构建.gradle（与JDK 11、Spring Boot 2.1和gradle 4.8配合使用，但gradle 5需要大量清理）

---

通过将Gradle回滚到4.8并回滚Hibernate依赖项，我使它与JDK11一起工作。进一步询问是否对我使用的确切依赖项感兴趣。

看起来您需要添加缺少依赖项的JAR。您不需要自定义任务，因为Gradle会自动检测并添加注释处理器。对于所需的依赖项，应使用

annotationProcessor

配置。另外，当使用Spring Boot时，您已经需要hibernate和JPA的依赖项，并且不需要额外的依赖项。您可以编辑答案并附加build.gradle吗@mike Melusky这是我为API项目（spring boot 2.1、jdk 11、gradle 4.8）构建的build.gradle。正如其他用户所提到的，我需要清理一些东西，以使gradle 5更好地使用它，但目前它仍然有效。

buildscript {
    repositories {
        jcenter()
        mavenLocal()
        mavenCentral()
        maven { url "http://repo.spring.io/libs-release" }
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:2.1.2.RELEASE")
    }
}

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
apply plugin: "jacoco"

jar {
    enabled = true
}

repositories {
    mavenLocal()
    mavenCentral()
    maven { url "http://repo.spring.io/libs-release" }
}

ext {
    generatedSourcesDir = file("${buildDir}/generated-sources")
    pojogenGeneratedDir = file("src/pojogen")
}

sourceSets {
    main {
        java {
            srcDir "src/main/java"
            srcDir pojogenGeneratedDir
            srcDir generatedSourcesDir
        }
    }
}

configurations {
    provided
    compile.extendsFrom provided
}

compileJava {
    doFirst {
        generatedSourcesDir.mkdirs();
    }
    options.compilerArgs += [
            '-s', generatedSourcesDir,
    ]
}

jar {
    enabled = true
}

sourceCompatibility = JavaVersion.VERSION_11
targetCompatibility = JavaVersion.VERSION_11

dependencies {

    /*
        SPRING
     */

    testCompile("org.springframework.boot:spring-boot-starter-test:2.1.2.RELEASE")

    // tag::tomcat[]
    compile("org.springframework.boot:spring-boot-starter-web:2.1.2.RELEASE") {
        exclude module: "spring-boot-starter-jetty:2.1.2.RELEASE"
    }
    compile("org.springframework.boot:spring-boot-starter-tomcat:2.1.2.RELEASE")
    // end::tomcat[]
    // tag::actuator[]
    compile("org.springframework.boot:spring-boot-starter-actuator:2.1.2.RELEASE")
    compile("org.springframework.boot:spring-boot-starter-security:2.1.2.RELEASE")
    compile("org.springframework.boot:spring-boot-starter-data-jpa:2.1.2.RELEASE")
    compile("org.springframework.boot:spring-boot-starter-batch:2.1.2.RELEASE")
    compile("org.springframework.boot:spring-boot-devtools:2.1.2.RELEASE")
    // end::actuator[]

    /*
        APACHE COMMONS
     */

    // https://mvnrepository.com/artifact/org.apache.commons/commons-lang3
    compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.8.1'

    // https://mvnrepository.com/artifact/commons-io/commons-io
    compile group: 'commons-io', name: 'commons-io', version: '2.6'

    /*
        GOOGLE GUAVA
     */

    // https://mvnrepository.com/artifact/com.google.guava/guava
    compile group: 'com.google.guava', name: 'guava', version: '27.0.1-jre'

    /*
        LOGBACK
     */

    // https://mvnrepository.com/artifact/ch.qos.logback/logback-classic
    testCompile group: 'ch.qos.logback', name: 'logback-classic', version: '1.2.3'

    /*
        MOCKITO
     */

    // https://mvnrepository.com/artifact/org.mockito/mockito-core
    testCompile group: 'org.mockito', name: 'mockito-core', version: '2.23.4'

    /*
        JWT
     */

    // https://mvnrepository.com/artifact/io.jsonwebtoken/jjwt
    compile group: 'io.jsonwebtoken', name: 'jjwt', version: '0.9.1'

    /*
        MAIL
     */

    // https://mvnrepository.com/artifact/com.sun.mail/javax.mail
    compile group: 'com.sun.mail', name: 'javax.mail', version: '1.6.2'

    // https://mvnrepository.com/artifact/javax.mail/javax.mail-api
    compile group: 'javax.mail', name: 'javax.mail-api', version: '1.6.2'

    /*
        SWAGGER
     */

    // https://mvnrepository.com/artifact/io.springfox/springfox-swagger2
    compile group: 'io.springfox', name: 'springfox-swagger2', version: '2.9.2'

    // https://mvnrepository.com/artifact/io.springfox/springfox-swagger-ui
    compile group: 'io.springfox', name: 'springfox-swagger-ui', version: '2.9.2'

    /*
        PASSWORD VALIDATOR
    */

    // https://mvnrepository.com/artifact/org.passay/passay
    compile group: 'org.passay', name: 'passay', version: '1.3.1'

    /*
        LOMBOK
     */

    // https://mvnrepository.com/artifact/org.projectlombok/lombok
    provided group: 'org.projectlombok', name: 'lombok', version: '1.18.4'

    /*
        Thymeleaf
     */

//    // https://mvnrepository.com/artifact/org.thymeleaf/thymeleaf
//    compile group: 'org.thymeleaf', name: 'thymeleaf', version: '3.0.9.RELEASE'
//
//    // https://mvnrepository.com/artifact/org.thymeleaf/thymeleaf-spring4
//    compile group: 'org.thymeleaf', name: 'thymeleaf-spring4', version: '3.0.9.RELEASE'

    /*
        H2 (unit testing)
     */

    // https://mvnrepository.com/artifact/com.h2database/h2
    testCompile group: 'com.h2database', name: 'h2', version: '1.4.197'

    /*
        Thumbnail tools
     */

    // https://mvnrepository.com/artifact/net.coobird/thumbnailator
    compile group: 'net.coobird', name: 'thumbnailator', version: '0.4.8'

    /*
        JUNIT
     */

    testCompile("junit:junit")
}

/*
    BUILD EXCLUSIONS
 */

test {
    systemProperties 'property': 'value'
    testLogging {
        events "passed", "skipped", "failed", "standardOut", "standardError"
    }
}

/*
    JaCoCo
 */
jacoco {
    toolVersion = "0.7.6.201602180812"
    reportsDir = file("$buildDir/customJacocoReportDir")
}

jacocoTestReport {
    reports {
        xml.enabled false
        csv.enabled false
        html.destination "${buildDir}/jacocoHtml"
    }
}