Examples of org.springframework.core.OverridingClassLoader

org.springframework.core.OverridingClassLoader
ClassLoader that does not always delegate to the parent loader, as normal class loaders do. This enables, for example, instrumentation to be forced in the overriding ClassLoader, or a "throwaway" class loading behavior, where selected classes are temporarily loaded in the overriding ClassLoader, in order to load an instrumented version of the class in the parent ClassLoader later on. @author Rod Johnson @author Juergen Hoeller @since 2.0.1

    BeanWrapper bw = new BeanWrapperImpl(TestBean.class);
    assertTrue(bw.isWritableProperty("name"));
    assertTrue(bw.isWritableProperty("age"));
    assertTrue(CachedIntrospectionResults.classCache.containsKey(TestBean.class));


    ClassLoader child = new OverridingClassLoader(getClass().getClassLoader());
    Class tbClass = child.loadClass("org.springframework.beans.TestBean");
    assertFalse(CachedIntrospectionResults.classCache.containsKey(tbClass));
    CachedIntrospectionResults.acceptClassLoader(child);
    bw = new BeanWrapperImpl(tbClass);
    assertTrue(bw.isWritableProperty("name"));
    assertTrue(bw.isWritableProperty("age"));

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    BeanWrapper bw = new BeanWrapperImpl(TestBean.class);
    assertTrue(bw.isWritableProperty("name"));
    assertTrue(bw.isWritableProperty("age"));
    assertTrue(CachedIntrospectionResults.strongClassCache.containsKey(TestBean.class));


    ClassLoader child = new OverridingClassLoader(getClass().getClassLoader());
    Class<?> tbClass = child.loadClass("org.springframework.tests.sample.beans.TestBean");
    assertFalse(CachedIntrospectionResults.strongClassCache.containsKey(tbClass));
    CachedIntrospectionResults.acceptClassLoader(child);
    bw = new BeanWrapperImpl(tbClass);
    assertTrue(bw.isWritableProperty("name"));
    assertTrue(bw.isWritableProperty("age"));

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