@Test
public void shouldUseExtendedBeanInfoWhenApplicable()
throws NoSuchMethodException, SecurityException {
// given a class with a non-void returning setter method
@SuppressWarnings("unused")
class C {
public Object setFoo(String s) {
return this;
}
public String getFoo() {
return null;
}
}
// CachedIntrospectionResults should delegate to ExtendedBeanInfo
CachedIntrospectionResults results = CachedIntrospectionResults.forClass(C.class);
BeanInfo info = results.getBeanInfo();
PropertyDescriptor pd = null;
for (PropertyDescriptor candidate : info.getPropertyDescriptors()) {
if (candidate.getName().equals("foo")) {
pd = candidate;
}
}
// resulting in a property descriptor including the non-standard setFoo method
assertThat(pd, notNullValue());
assertThat(pd.getReadMethod(), equalTo(C.class.getMethod("getFoo")));
assertThat(
"No write method found for non-void returning 'setFoo' method. "
+ "Check to see if CachedIntrospectionResults is delegating to "
+ "ExtendedBeanInfo as expected",
pd.getWriteMethod(),
equalTo(C.class.getMethod("setFoo", String.class)));
}
@Test
public void clearClassLoaderForSystemClassLoader() throws Exception {
BeanUtils.getPropertyDescriptors(ArrayList.class);
assertTrue(CachedIntrospectionResults.strongClassCache.containsKey(ArrayList.class));
CachedIntrospectionResults.clearClassLoader(ArrayList.class.getClassLoader());
assertFalse(CachedIntrospectionResults.strongClassCache.containsKey(ArrayList.class));
}
@Test
public void acceptAndClearClassLoader() throws Exception {
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"));
assertTrue(CachedIntrospectionResults.strongClassCache.containsKey(tbClass));
CachedIntrospectionResults.clearClassLoader(child);
assertFalse(CachedIntrospectionResults.strongClassCache.containsKey(tbClass));
assertTrue(CachedIntrospectionResults.strongClassCache.containsKey(TestBean.class));
}