Gradle 5.6.2 doesn't run with JDK 13 (release version)

[donhuvy]

Windows 10 pro x64, JDK 13 (General Availability version), IntelliJ IDEA 2019, Spring Boot 2.1.8.RELEASE

C:\Users\donhuvy>javac --version
Picked up _JAVA_OPTIONS: -Xmx512M
javac 13-ea

C:\Users\donhuvy>java --version
Picked up _JAVA_OPTIONS: -Xmx512M
java 13-ea 2019-09-17
Java(TM) SE Runtime Environment (build 13-ea+33)
Java HotSpot(TM) 64-Bit Server VM (build 13-ea+33, mixed mode, sharing)

C:\Users\donhuvy>gradle --version
Picked up _JAVA_OPTIONS: -Xmx512M

------------------------------------------------------------
Gradle 5.6
------------------------------------------------------------

Build time:   2019-08-14 21:05:25 UTC
Revision:     f0b9d60906c7b8c42cd6c61a39ae7b74767bb012

Kotlin:       1.3.41
Groovy:       2.5.4
Ant:          Apache Ant(TM) version 1.9.14 compiled on March 12 2019
JVM:          13-ea (Oracle Corporation 13-ea+33)
OS:           Windows 10 10.0 amd64

Error

Unsupported class file major version 57

Expected Behavior

Current Behavior

Context

Steps to Reproduce

Your Environment

Build scan URL:

[donhuvy]

If I use JDK 11 for Gradle run success, Related problem
file build.gradle

buildscript {
    ext {
        springBootVersion = '2.1.8.RELEASE'
    }
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
    }
}

apply plugin: 'java'
apply plugin: 'eclipse-wtp'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
apply plugin: 'war'

group = 'com.bkit'
version = '2019.08-SNAPSHOT'
sourceCompatibility = 12

repositories {
    mavenLocal()
    mavenCentral()
    maven {
        url 'http://jasperreports.sourceforge.net/maven2'
    }
}

configurations {
    providedRuntime
    developmentOnly
    runtimeClasspath {
        extendsFrom developmentOnly
    }
}

dependencies {
    implementation('org.springframework.boot:spring-boot-starter-actuator')
    implementation('org.springframework.boot:spring-boot-starter-data-jpa')
    implementation('org.springframework.boot:spring-boot-starter-security')
    implementation('org.springframework.boot:spring-boot-starter-web'){
        exclude module: "spring-boot-starter-tomcat"
    }
    implementation('org.springframework.boot:spring-boot-starter-thymeleaf')
    implementation('org.thymeleaf.extras:thymeleaf-extras-java8time')
    implementation('org.apache.poi:poi:4.1.0')
    implementation('org.apache.poi:poi-ooxml:4.1.0')
    implementation('org.apache.pdfbox:pdfbox:2.0.15')
    implementation('org.hibernate.validator:hibernate-validator:6.0.17.Final')
    implementation('org.glassfish:javax.el:3.0.1-b09')
    implementation('commons-beanutils:commons-beanutils:1.9.3')
    implementation('com.fasterxml.jackson.core:jackson-core:2.9.9')
    implementation('com.fasterxml.jackson.core:jackson-databind') {
        exclude module: "jackson-annotations"
    }
    developmentOnly("org.springframework.boot:spring-boot-devtools")
    providedCompile group: 'javax.servlet', name: 'javax.servlet-api', version: '4.0.1'
    implementation('net.sf.jasperreports:jasperreports:6.9.0')
    implementation('net.sf.jasperreports:jasperreports-fonts:6.9.0')
    implementation('net.sf.jasperreports:jasperreports-functions:6.9.0')
    implementation('net.sf.jasperreports:jasperreports-metadata:6.9.0')
    implementation('net.sf.jasperreports:jasperreports-fonts:6.9.0')
    implementation('net.sf.jasperreports:jasperreports-annotation-processors:6.9.0')
    implementation('net.sf.jasperreports:jasperreports-chart-themes:6.9.0')
    implementation('net.sf.jasperreports:jasperreports-chart-customizers:6.9.0')
    implementation('net.sf.jasperreports:jasperreports-custom-visualization:6.9.0')
    compile 'com.lowagie:itext:2.1.7.js5'
    implementation('ar.com.fdvs:DynamicJasper-core-fonts:2.0')
    implementation('ar.com.fdvs:DynamicJasper:5.1.2')
    
    implementation('com.itextpdf:font-asian:7.1.7')
    implementation('com.itextpdf:itext-asian:5.2.0')

    implementation 'com.stimulsoft:stimulsoft-reports-libs:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-demo:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-samples:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-webdesigner:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-webviewer:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-flex:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-web:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-viewer:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-report:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-base:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-lib:2019.3.3'
    implementation 'com.stimulsoft:reports:2019.3.3'
    implementation 'com.stimulsoft:stimulsoft-reports-swt:2019.2.2'

    implementation('org.docx4j:docx4j-core:11.1.0')
    implementation('org.docx4j:docx4j:6.1.2')
    implementation('com.j256.simplemagic:simplemagic:1.16')
    implementation('javax.xml.bind:jaxb-api:2.3.1')
    implementation('com.sun.xml.bind:jaxb-core:2.3.0.1')
    implementation('com.sun.xml.bind:jaxb-impl:2.3.1')
    implementation('javax.activation:activation:1.1.1')
    runtimeOnly('com.microsoft.sqlserver:mssql-jdbc')
    testImplementation('org.springframework.boot:spring-boot-starter-test')
}

info

Could not target platform: 'Java SE 12' using tool chain: 'JDK 11 (11)'.

[donhuvy]

It means I cannot build to target JDK 12 if Gradle doesn't run on JDK 13.
It means I cannot build to target JDK 13 if Gradle doesn't run on JDK 13.

[blindpirate]

Thanks for reporting, JDK 13 will be supported in Gradle 6.0. Closing due to duplicate of #10785

Could not target platform: 'Java SE 12' using tool chain: 'JDK 11 (11)'.

It's expected behavior that you can't build a higher target using lower version JDK.

[ljacomet]

Note that by applying the recipe described in the documentation, it is perfectly possible to use Gradle running with a lower Java version to invoke more recent java executables for compilation / test / execution