Google应用引擎
我正在努力证明，当我们开发GAE java后端时，gradle和gradle-gae-plugin将为我们完成这项工作。
我已经取得了一些成功，但后来花了2周的假期当然应该受到惩罚......
现在我甚至无法启动应用程序。 所有依赖关系似乎都是正确的，项目编译完好。
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导致：java.lang.ClassNotFoundException：com.google.appengine.api.LifecycleManager $ java.net.URLClassLoader $ ShutdownHook java.net.URLClassLoader $ 1.run（URLClassLoader.java:366）$ 1.run（URLClassLoader.java： 355）at java.lang.ClassLoader.loadClass（ClassLoader.java:423）at com.google.appengine（java.net.URLClassLoader.findClass（URLClassLoader.java:354））java.security.AccessController.doPrivileged（Native Method） .tools.development.IsolatedAppClassLoader.loadClass（IsolatedAppClassLoader.java:214）at java.lang.ClassLoader.loadClass（ClassLoader.java:356）... 30多java.lang.NullPointerException at java.lang.Class.isAssignableFrom（Native方法）at org.mortbay.jetty.servlet.ServletHolder.doStart（ServletHolder.java:256）at org.mortbay.component.AbstractLifeCycle.start（AbstractLifeCycle.java:50）at org.mortbay.jetty.servlet.ServletHandler.initialize （ServletHandler.java:685）at org.mortbay.jetty.servlet.Context.startContext（Context.java:140）at org.mortbay.jetty.webapp.WebAppContext.sta rtContext（WebAppContext.java:1250）at org.mortbay.jetty.handler.ContextHandler.doStart（ContextHandler.java:517）at org.mortbay.jetty.webapp.WebAppContext.doStart（WebAppContext.java:467）at org.mortbay .component.AbstractLifeCycle.start（AbstractLifeCycle.java:50）at org.mortbay.jetty.handler.HandlerWrapper.doStart（HandlerWrapper.java:130）at org.mortbay.component.AbstractLifeCycle.start（AbstractLifeCycle.java:50）at org.mortbay.component.AbstractLifeCycle.start（AbstractLifeCycle.java：org.mortbay.jetty.Server.doStart（Server.java:224）org.mortbay.jetty.handler.HandlerWrapper.doStart（HandlerWrapper.java:130） 50）com.google.appengine.tools.development.JettyContainerService.startContainer（JettyContainerService.java:230）com.google.appengine.tools.development.AbstractContainerService.startup（AbstractContainerService.java:307）com.google.appengine .tools.development.AutomaticServerInstanceHolder.startUp（AutomaticServerInstanceHolder.java:26）at com.google.appengine.tools.developme nt.AbstractServer.startup（AbstractServer.java:80），位于com.google.appengine.tools.development.Servers.startup（Servers.java:78）com.google.appengine.tools.development.DevAppServerImpl.start（DevAppServerImpl。 java：216）at com.google.appengine.tools.development.DevAppServerMain $ StartAction.apply（DevAppServerMain.java:332）at com.google.appengine.tools.util.Parser $ ParseResult.applyArgs（Parser.java:48） com.google.appengine.tools.development.DevAppServerMain。（DevAppServerMain.java:268），位于com.google.appengine.tools.development.DevAppServerMain.main（DevAppServerMain.java:244）
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apply plugin: 'gae'
apply plugin: 'eclipse'
ext.version = "130"
buildscript {
repositories {
mavenLocal()
mavenCentral()
}
dependencies {
classpath 'org.gradle.api.plugins:gradle-gae-plugin:0.8'
}
}
repositories {
mavenLocal()
mavenCentral()
maven {
url "http://maven.kungfuters.org/content/groups/public/" // javapns lives here!
}
}
configurations {
all*.exclude module: 'slf4j-log4j12'
}
dependencies {
def gaeVersion = '1.7.7'
def jerseyVersion = '1.17.1'
gaeSdk "com.google.appengine:appengine-java-sdk:$gaeVersion"
// compile fileTree(dir: 'war/WEB-INF/lib', includes: ['*.jar']) // TODO: Change this in ze future!
compile "javax.servlet:servlet-api:2.5"
compile "commons-cli:commons-cli:1.2"
compile "org.apache.commons:commons-lang3:3.1"
compile "org.json:json:20090211"
compile "javax.ws.rs:jsr311-api:1.1.1"
compile "org.picocontainer:picocontainer:2.14.3"
compile "com.google.appengine:appengine-api-1.0-sdk:$gaeVersion"
compile "com.google.appengine:appengine-api-stubs:$gaeVersion"
compile "com.google.appengine:appengine-remote-api:$gaeVersion"
compile "com.google.appengine.tools:appengine-gcs-client:0.3"
compile "com.google.appengine.tools:appengine-mapreduce:0.2"
compile "com.google.appengine.tools:appengine-pipeline:0.1"
compile "com.google.api-client:google-api-client:1.15.0-rc"
compile "com.google.api-client:google-api-client-appengine:1.15.0-rc"
compile "com.google.api.client:google-api-client-json:1.2.3-alpha"
compile "com.google.apis:google-api-services-bigquery:v2-rev97-1.15.0-rc"
compile "com.google.apis:google-api-services-storage:v1beta2-rev10-1.15.0-rc"
compile "com.google.http-client:google-http-client:1.15.0-rc"
compile "com.google.http-client:google-http-client-jackson:1.15.0-rc"
compile "com.googlecode.javapns:javapns:2.2"
compile "com.sun.jersey:jersey-core:$jerseyVersion"
compile "com.sun.jersey:jersey-server:$jerseyVersion"
compile "com.sun.jersey:jersey-servlet:$jerseyVersion"
compile "com.sun.jersey:jersey-client:$jerseyVersion"
compile "com.sun.jersey:jersey-json:$jerseyVersion"
compile "org.bouncycastle:bcprov-jdk15on:1.48"
runtime "org.slf4j:slf4j-jdk14:1.7.5"
testCompile "junit:junit:4.10"
testCompile "org.mockito:mockito-all:1.9.0"
testCompile "com.google.appengine:appengine-testing:$gaeVersion"
}
sourceSets {
main { java {srcDir 'src' } }
test { java {srcDir 'testsrc' } }
}
test {
// set heap size for the test JVM(s)
minHeapSize = "128m"
maxHeapSize = "512m"
// set JVM arguments for the test JVM(s)
jvmArgs '-XX:MaxPermSize=768m'
// listen to events in the test execution lifecycle
beforeTest { descriptor ->
logger.lifecycle("Running: " + descriptor)
}
}
webAppDirName = file('war')
gae {
httpPort = 8888
jvmFlags = ['-Xdebug', '-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8889', '-Xmx1024m', '-XX:MaxPermSize=512m']
downloadSdk = true
warDir = file('war')
appcfg {
update {
useJava7 = true
}
email = 'foo@bar.se'
passIn = true
logs {
severity = 1
numDays = 1
outputFile = file('dalby.log')
}
app {
id = 'dalby-gunnar'
}
}
}
eclipse {
classpath {
downloadSources=true
}
}
听起来像你必须告诉Java编译器（我假设你的代码是用Java编写的）来设置注释处理。 从我在错误消息中可以看到的内容我会尝试以下操作：
禁用注释处理
compileJava.options.compilerArgs = ['-proc:none']
启用注释处理
compileJava.options.compilerArgs = ['-implicit']
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