最近在學(xué)習(xí)JDK17的時候遇到這么一個問題，springBoot啟動失敗，日志如下：

Exception in thread "main" java.lang.IllegalArgumentException: Unable to instantiate factory class [com.ctrip.framework.apollo.spring.boot.ApolloApplicationContextInitializer] for factory type [org.springframework.context.ApplicationContextInitializer]
	at org.springframework.core.io.support.SpringFactoriesLoader$FailureHandler.lambda$throwing$0(SpringFactoriesLoader.java:650)
	at org.springframework.core.io.support.SpringFactoriesLoader$FailureHandler.lambda$handleMessage$3(SpringFactoriesLoader.java:674)
	at org.springframework.core.io.support.SpringFactoriesLoader.instantiateFactory(SpringFactoriesLoader.java:231)
	at org.springframework.core.io.support.SpringFactoriesLoader.load(SpringFactoriesLoader.java:206)
	at org.springframework.core.io.support.SpringFactoriesLoader.load(SpringFactoriesLoader.java:160)
	at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:459)
	at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:455)
	at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:273)
	at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:252)
	at com.zzz.train.business.BusinessApplication.main(BusinessApplication.java:20)
Caused by: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
	at org.springframework.core.io.support.SpringFactoriesLoader$FactoryInstantiator.instantiate(SpringFactoriesLoader.java:381)
	at org.springframework.core.io.support.SpringFactoriesLoader.instantiateFactory(SpringFactoriesLoader.java:228)
	... 7 more
Caused by: com.ctrip.framework.apollo.exceptions.ApolloConfigException: Unable to load instance for com.ctrip.framework.apollo.spring.config.ConfigPropertySourceFactory!
	at com.ctrip.framework.apollo.spring.util.SpringInjector.getInstance(SpringInjector.java:40)
	at com.ctrip.framework.apollo.spring.boot.ApolloApplicationContextInitializer.<init>(ApolloApplicationContextInitializer.java:48)
	... 14 more
Caused by: com.ctrip.framework.apollo.exceptions.ApolloConfigException: Unable to initialize Apollo Spring Injector!
	at com.ctrip.framework.apollo.spring.util.SpringInjector.getInjector(SpringInjector.java:24)
	at com.ctrip.framework.apollo.spring.util.SpringInjector.getInstance(SpringInjector.java:37)
	... 15 more
Caused by: com.google.common.util.concurrent.ExecutionError: java.lang.ExceptionInInitializerError
	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2201)
	at com.google.common.cache.LocalCache.get(LocalCache.java:3937)
	at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941)
	at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824)
	at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4830)
	at com.google.inject.internal.FailableCache.get(FailableCache.java:48)
	at com.google.inject.internal.ConstructorInjectorStore.get(ConstructorInjectorStore.java:50)
	at com.google.inject.internal.ConstructorBindingImpl.initialize(ConstructorBindingImpl.java:138)
	at com.google.inject.internal.InjectorImpl.initializeBinding(InjectorImpl.java:536)
	at com.google.inject.internal.AbstractBindingProcessor$Processor$1.run(AbstractBindingProcessor.java:160)
	at com.google.inject.internal.ProcessedBindingData.initializeBindings(ProcessedBindingData.java:44)
	at com.google.inject.internal.InternalInjectorCreator.initializeStatically(InternalInjectorCreator.java:123)
	at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:107)
	at com.google.inject.Guice.createInjector(Guice.java:99)
	at com.google.inject.Guice.createInjector(Guice.java:73)
	at com.google.inject.Guice.createInjector(Guice.java:62)
	at com.ctrip.framework.apollo.spring.util.SpringInjector.getInjector(SpringInjector.java:22)
	... 16 more
Caused by: java.lang.ExceptionInInitializerError
	at com.google.inject.internal.cglib.reflect.$FastClass$Generator.getProtectionDomain(FastClass.java:73)
	at com.google.inject.internal.cglib.core.$AbstractClassGenerator.create(AbstractClassGenerator.java:206)
	at com.google.inject.internal.cglib.reflect.$FastClass$Generator.create(FastClass.java:65)
	at com.google.inject.internal.BytecodeGen.newFastClassForMember(BytecodeGen.java:252)
	at com.google.inject.internal.BytecodeGen.newFastClassForMember(BytecodeGen.java:203)
	at com.google.inject.internal.DefaultConstructionProxyFactory.create(DefaultConstructionProxyFactory.java:53)
	at com.google.inject.internal.ProxyFactory.create(ProxyFactory.java:158)
	at com.google.inject.internal.ConstructorInjectorStore.createConstructor(ConstructorInjectorStore.java:90)
	at com.google.inject.internal.ConstructorInjectorStore.access$000(ConstructorInjectorStore.java:29)
	at com.google.inject.internal.ConstructorInjectorStore$1.create(ConstructorInjectorStore.java:37)
	at com.google.inject.internal.ConstructorInjectorStore$1.create(ConstructorInjectorStore.java:33)
	at com.google.inject.internal.FailableCache$1.load(FailableCache.java:37)
	at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)
	at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319)
	at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)
	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197)
	... 32 more
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @d35dea7
	at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354)
	at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
	at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199)
	at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
	at com.google.inject.internal.cglib.core.$ReflectUtils$1.run(ReflectUtils.java:52)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:318)
	at com.google.inject.internal.cglib.core.$ReflectUtils.<clinit>(ReflectUtils.java:42)
	... 48 more

Process finished with exit code 1

原因：這是由于 JDK 8 中有關(guān)反射相關(guān)的功能自從 JDK 9 開始就已經(jīng)被限制了，為了兼容原先的版本，需要在運(yùn)行項目時添加?--add-opens java.base/java.lang=ALL-UNNAMED?選項來開啟這種默認(rèn)不被允許的行為。

解決方案：

結(jié)果：

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