有没有办法强制heroku安装OpenJDK 1.8？
追踪：
12:57:01.488: cd C:\Users\Me\Google Drive\MyWebApp
12:57:01.488: git -c core.quotepath=false log refs/heads/master --not --remotes=heroku --max-count=1000 --pretty=format:%x01%H%x02%ct%x02%an%x02%at%x02%ae%x02%cn%x02%ce%x02%P%x02%s%x02%b%x02%B%x03 --encoding=UTF-8 -M --name-status -c --
12:59:24.248: cd C:\Users\Me\Google Drive\MyWebApp
12:59:24.248: git -c core.quotepath=false push --progress --porcelain heroku refs/heads/master:master --set-upstream
Fetching repository, done.
Counting objects: 1633, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (1462/1462), done.
Writing objects: 100% (1633/1633), 53.48 MiB | 188.00 KiB/s, done.
Total 1633 (delta 703), reused 0 (delta 0)
-----> Grails app detected
-----> Grails 2.5.0 app detected
WARNING: The Grails buildpack is currently in Beta.
-----> Installing OpenJDK 1.6...done
-----> Executing ./grailsw -Divy.default.ivy.user.dir=/app/tmp/cache compile --non-interactive
Downloading http://dist.springframework.org.s3.amazonaws.com/release/GRAILS/grails-2.5.0.zip to /app/.grails/wrapper/grails-2.5.0-download.zip
.................................................................................
Extracting /app/.grails/wrapper/grails-2.5.0-download.zip to /app/.grails/wrapper/2.5.0
Apr 11, 2015 10:15:38 AM org.codehaus.groovy.runtime.m12n.MetaInfExtensionModule newModule
WARNING: Module [groovy-all] - Unable to load extension class [org.codehaus.groovy.runtime.NioGroovyMethods]
| Loading Grails 2.5.0
| Configuring classpath
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| Downloading: org/grails/grails-datastore-gorm-plugin-support/3.1.4.RELEASE/grails-datastore-gorm-plugin-support-3.1.4.RELEASE.jar
| Downloading: org/liquibase/liquibase-core/2.0.5/liquibase-core-2.0.5.jar
| Downloading: org/liquibase/liquibase-core/2.0.5/liquibase-core-2.0.5.jar.
| Environment set to development
| Environment set to development.
| Environment set to development..
| Environment set to development...
| Environment set to development....
| Environment set to development.....
-----> Executing ./grailsw -plain-output -Divy.default.ivy.user.dir=/app/tmp/cache war --non-interactive
Apr 11, 2015 10:16:18 AM org.codehaus.groovy.runtime.m12n.MetaInfExtensionModule newModule
WARNING: Module [groovy-all] - Unable to load extension class [org.codehaus.groovy.runtime.NioGroovyMethods]
|Loading Grails 2.5.0
|Configuring classpath
.
|Environment set to production
.................................
|Packaging Grails application
.....................................
|Compiling 8 GSP files for package [MyWebApp]
..
|Compiling 4 GSP files for package [databaseMigration]
..
|Building WAR file
.............................................................
|Precompiling Assets!
.Error
|
Error executing script War: java/nio/file/FileSystems (Use --stacktrace to see the full trace)
! Failed to build app
! Push rejected, failed to compile Grails app
error: failed to push some refs to 'git@heroku.com:MyWebApp.git'
To git@heroku.com:MyWebApp.git
! refs/heads/master:refs/heads/master [remote rejected] (pre-receive hook declined)
BuildConfig.groovy
grails.servlet.version = "2.5" // Change depending on target container compliance (2.5 or 3.0)
grails.project.class.dir = "target/classes"
grails.project.test.class.dir = "target/test-classes"
grails.project.test.reports.dir = "target/test-reports"
grails.project.work.dir = "target/work"
grails.project.target.level = 1.8
grails.project.source.level = 1.8
//grails.project.war.file = "target/${appName}-${appVersion}.war"
grails.project.fork = [
// configure settings for compilation JVM, note that if you alter the Groovy version forked compilation is required
// compile: [maxMemory: 256, minMemory: 64, debug: false, maxPerm: 256, daemon:true],
// configure settings for the test-app JVM, uses the daemon by default
test: [maxMemory: 768, minMemory: 64, debug: false, maxPerm: 256, daemon:true],
// configure settings for the run-app JVM
run: [maxMemory: 768, minMemory: 64, debug: false, maxPerm: 256, forkReserve:false],
// configure settings for the run-war JVM
war: [maxMemory: 768, minMemory: 64, debug: false, maxPerm: 256, forkReserve:false],
// configure settings for the Console UI JVM
console: [maxMemory: 768, minMemory: 64, debug: false, maxPerm: 256]
]
grails.project.dependency.resolver = "maven" // or ivy
grails.project.dependency.resolution = {
// inherit Grails' default dependencies
inherits("global") {
// specify dependency exclusions here; for example, uncomment this to disable ehcache:
// excludes 'ehcache'
}
log "error" // log level of Ivy resolver, either 'error', 'warn', 'info', 'debug' or 'verbose'
checksums true // Whether to verify checksums on resolve
legacyResolve false // whether to do a secondary resolve on plugin installation, not advised and here for backwards compatibility
repositories {
inherits true // Whether to inherit repository definitions from plugins
grailsPlugins()
grailsHome()
mavenLocal()
grailsCentral()
mavenCentral()
// uncomment these (or add new ones) to enable remote dependency resolution from public Maven repositories
//mavenRepo "http://repository.codehaus.org"
//mavenRepo "http://download.java.net/maven/2/"
//mavenRepo "http://repository.jboss.com/maven2/"
}
dependencies {
// specify dependencies here under either 'build', 'compile', 'runtime', 'test' or 'provided' scopes e.g.
// runtime 'mysql:mysql-connector-java:5.1.29'
// runtime 'org.postgresql:postgresql:9.3-1101-jdbc41'
test "org.grails:grails-datastore-test-support:1.0.2-grails-2.4"
}
plugins {
// plugins for the build system only
build ":tomcat:7.0.55.2" // or ":tomcat:8.0.20"
// plugins for the compile step
compile ":scaffolding:2.1.2"
compile ':cache:1.1.8'
compile ":asset-pipeline:2.1.5"
//compile ":nimble:0.7"
// plugins needed at runtime but not for compilation
runtime ":hibernate4:4.3.8.1" // or ":hibernate:3.6.10.18"
runtime ":database-migration:1.4.0"
runtime ":jquery:1.11.1"
// Uncomment these to enable additional asset-pipeline capabilities
//compile ":sass-asset-pipeline:1.9.0"
//compile ":less-asset-pipeline:1.10.0"
//compile ":coffee-asset-pipeline:1.8.0"
//compile ":handlebars-asset-pipeline:1.3.0.3"
}
}
答案 0 :(得分：3)
是的，有办法安装OpenJDK 1.8。
为此，您需要在项目的根目录中创建文件system.properties并添加以下行
java.runtime.version=1.8
然后在git中添加并提交文件并推送到heruko。
添加system.properties文件后的控制台日志：
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Grails app detected
remote: -----> Grails 2.4.4 app detected
remote: WARNING: The Grails buildpack is currently in Beta.
remote: -----> Installing OpenJDK 1.8...done
添加system.properties文件之前的控制台日志：
remote: -----> Grails app detected
remote: -----> Grails 2.4.4 app detected
remote: WARNING: The Grails buildpack is currently in Beta.
remote: -----> Installing OpenJDK 1.6...done
.............
remote: | Installed plugin tomcat-7.0.55.....
remote: | Compiling 10 source files
remote: [groovyc] org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
remote: [groovyc] Invalid commandline usage for javac.
remote: [groovyc] javac: invalid source release: 1.8
remote: [groovyc] Usage: javac <options> <source files>
参考：https://devcenter.heroku.com/articles/getting-started-with-grails#optional-choose-a-jdk