00-环境搭建问题

spring源码环境搭建问题

下载源码和gradle就不再赘述，主要记录几个难缠的问题

一. 少包

在导入ide之后，发现有spring-cglib-repack-3.2.4.jar和spring-objenesis-repack-2.4.jar不存在，在spring-framework目录下执行gradle objenesisRepackJar和gradle cglibRepackJar命令，会在Spring-framework\spring-core\build\libs目录下生成jar包。

二. kotlin错误

Error:Kotlin: [Internal Error] java.lang.LinkageError: loader constraint violation: loader (instance of org/jetbrains/kotlin/cli/jvm/plugins/PluginURLClassLoader$SelfThenParentURLClassLoader) previously initiated loading for a different type with name "kotlin/sequences/Sequence"
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
	at org.jetbrains.kotlin.cli.jvm.plugins.PluginURLClassLoader$SelfThenParentURLClassLoader.findClass(PluginURLClassLoader.kt:46)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
	at org.jetbrains.kotlin.cli.jvm.plugins.PluginURLClassLoader$SelfThenParentURLClassLoader.findClass(PluginURLClassLoader.kt:46)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at kotlin.coroutines.experimental.SequenceBuilderKt__SequenceBuilderKt.buildSequence(SequenceBuilder.kt:24)
	at org.jetbrains.kotlin.scripting.compiler.plugin.ScriptiDefinitionsFromClasspathDiscoverySourceKt.discoverScriptTemplatesInClasspath(ScriptiDefinitionsFromClasspathDiscoverySource.kt:48)
	at org.jetbrains.kotlin.scripting.compiler.plugin.ScriptDefinitionsFromClasspathDiscoverySource.<init>(ScriptiDefinitionsFromClasspathDiscoverySource.kt:34)
	at org.jetbrains.kotlin.scripting.compiler.plugin.ScriptingCompilerConfigurationExtension.updateConfiguration(ScriptingCompilerConfigurationExtension.kt:56)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.<init>(KotlinCoreEnvironment.kt:218)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.<init>(KotlinCoreEnvironment.kt:121)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment$Companion.createForProduction(KotlinCoreEnvironment.kt:513)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.createCoreEnvironment(K2JVMCompiler.kt:302)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:154)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:57)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.java:96)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.java:52)
	at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:93)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$$inlined$ifAlive$lambda$1.invoke(CompileServiceImpl.kt:436)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$$inlined$ifAlive$lambda$1.invoke(CompileServiceImpl.kt:102)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:1029)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:102)
	at org.jetbrains.kotlin.daemon.common.DummyProfiler.withMeasure(PerfUtils.kt:137)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.checkedCompile(CompileServiceImpl.kt:1071)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.doCompile(CompileServiceImpl.kt:1028)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:434)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

这个问题是由于spring的kotlin版本和idea自带的版本不一致，导致冲突

解决方案：

1. 更新idea的kotlin版本和spring一致
2. 在spring配置文件中更改kotlin版本

buildscript {
	repositories {
		//Maven本地资源库
		mavenLocal()
		//阿里云仓库
		maven {url "http://maven.aliyun.com/nexus/content/groups/public/" }
		//spring仓库(spring源码自带)
		maven {url "https://repo.spring.io/plugins-release" }
		//Maven中央仓库
		//mavenCentral()
	}
	dependencies {
		classpath("io.spring.gradle:propdeps-plugin:0.0.9.RELEASE")
		classpath("org.asciidoctor:asciidoctorj-pdf:1.5.0-alpha.16")
	}
}

// 3rd party plugin repositories can be configured in settings.gradle
plugins {
	id "io.spring.dependency-management" version "1.0.7.RELEASE" apply false
	id "org.jetbrains.kotlin.jvm" version "1.3.11" apply false
	id "org.jetbrains.dokka" version "0.9.18"
	id "org.asciidoctor.convert" version "1.5.8"
}

三.aspectj错误

这是由于aop和aspects这两个需要ajc编译，需要设置

1. 首先下载aspectj1.9，
2. 然后在project structure->facts中添加Aspect，把spring-aop.main和spring-aspects.main改为AspectJ，删除默认的kotlin
3. 在java compile中设置Ajc，注意勾选delegate to javac

四. 其他小错误

spring-oxm报错

查看spring-oxm下的spring-oxm.gradle文件后，发现可以在spring-oxm项目目录下执行下面两个命令

gradle genJaxb