classloader

问题 I have two Java modules, A and B. A provides a core model with JAXB annotations and helper classes for creating doing JAXB stuff (creating the context, marshalling, unmarshalling, etc.) B provides additional classes that are included in the model via @XmlAnyElement(lax = true) and must therefore be added to the JAXB context. This works fine in plain Java - B's classloader sees all the relevant classes and can instantiate the JAXB context with: JAXBContext.newInstance(RootFromA.class,

问题 I have two Java modules, A and B. A provides a core model with JAXB annotations and helper classes for creating doing JAXB stuff (creating the context, marshalling, unmarshalling, etc.) B provides additional classes that are included in the model via @XmlAnyElement(lax = true) and must therefore be added to the JAXB context. This works fine in plain Java - B's classloader sees all the relevant classes and can instantiate the JAXB context with: JAXBContext.newInstance(RootFromA.class,

问题 I have two Java modules, A and B. A provides a core model with JAXB annotations and helper classes for creating doing JAXB stuff (creating the context, marshalling, unmarshalling, etc.) B provides additional classes that are included in the model via @XmlAnyElement(lax = true) and must therefore be added to the JAXB context. This works fine in plain Java - B's classloader sees all the relevant classes and can instantiate the JAXB context with: JAXBContext.newInstance(RootFromA.class,

问题 Let's consider the following situation. There are three layers. BootLayer (moduleA) | |_______Child1(moduleB) | |__________ Child2(moduleC) Child1 is the child of the BootLayer, Child2 is the child of the Child1. Child1 and Child2 was created by the same code: ClassLoader parentClassLoader = ClassLoader.getSystemClassLoader(); ModuleLayer layer = parentLayer.defineModulesWithOneLoader(cf, parentClassLoader); As you see the parent class loader of both child layers is SystemClassLoader. However

问题 I have a class and I want to load that class by absolute path but I am getting ClassNotFoundException. I had been through many threads like this SO and found that it's not correct to load class from absolute path. InputStream stream = new Check().getClass().getResourceAsStream(clazz+".class"); OutputStream os = new FileOutputStream(new File("D:\\deep.class")); byte[] array = new byte[100]; while(stream.read(array) != -1){ os.write(array); } os.close(); stream.close(); Object obj = Class

问题 I am creating a tomcat/jsp based WAR spring boot 2.0.4 executable which works pretty well when just using bootWar gradle target. But now I want to load local external JARs and WarLauncher doesnt support this (is there a reason for that?). So I switched to PropertiesLauncher via: bootWar { enabled = true manifest { attributes 'Main-Class': 'org.springframework.boot.loader.PropertiesLauncher' } } Now looking inside the generated war file, everything looks ok in the MANIFEST like: Start-Class:

问题 I am creating a tomcat/jsp based WAR spring boot 2.0.4 executable which works pretty well when just using bootWar gradle target. But now I want to load local external JARs and WarLauncher doesnt support this (is there a reason for that?). So I switched to PropertiesLauncher via: bootWar { enabled = true manifest { attributes 'Main-Class': 'org.springframework.boot.loader.PropertiesLauncher' } } Now looking inside the generated war file, everything looks ok in the MANIFEST like: Start-Class:

来源： https://stackoverflow.com/questions/5156772/log4j-one-log-file-per-war

来源： https://stackoverflow.com/questions/57848521/classes-loaded-by-different-classloaders-in-spring-boot-and-logback

来源： https://stackoverflow.com/questions/57848521/classes-loaded-by-different-classloaders-in-spring-boot-and-logback