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Refine CachedIntrospectionResults property introspection 

Closes gh-28445
This commit is contained in:
Juergen Hoeller 2022-05-11 08:32:06 +02:00
parent dc2947c52d
commit 83186b689f
2 changed files with 36 additions and 11 deletions
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26
spring-beans/src/main/java/org/springframework/beans/CachedIntrospectionResults.java
View File

@ -22,6 +22,7 @@ import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.net.URL;
import java.security.ProtectionDomain;
import java.util.Collections;
import java.util.HashSet;
@ -292,10 +293,12 @@ public final class CachedIntrospectionResults {
// Only allow all name variants of Class properties
continue;
}
if (pd.getWriteMethod() == null && pd.getPropertyType() != null &&
(ClassLoader.class.isAssignableFrom(pd.getPropertyType()) ||
ProtectionDomain.class.isAssignableFrom(pd.getPropertyType()))) {
// Ignore ClassLoader and ProtectionDomain read-only properties - no need to bind to those
if (URL.class == beanClass && "content".equals(pd.getName())) {
// Only allow URL attribute introspection, not content resolution
continue;
}
if (pd.getWriteMethod() == null && isInvalidReadOnlyPropertyType(pd.getPropertyType())) {
// Ignore read-only properties such as ClassLoader - no need to bind to those
continue;
}
if (logger.isTraceEnabled()) {
@ -344,10 +347,8 @@ public final class CachedIntrospectionResults {
// GenericTypeAwarePropertyDescriptor leniently resolves a set* write method
// against a declared read method, so we prefer read method descriptors here.
pd = buildGenericTypeAwarePropertyDescriptor(beanClass, pd);
if (pd.getWriteMethod() == null && pd.getPropertyType() != null &&
(ClassLoader.class.isAssignableFrom(pd.getPropertyType()) ||
ProtectionDomain.class.isAssignableFrom(pd.getPropertyType()))) {
// Ignore ClassLoader and ProtectionDomain read-only properties - no need to bind to those
if (pd.getWriteMethod() == null && isInvalidReadOnlyPropertyType(pd.getPropertyType())) {
// Ignore read-only properties such as ClassLoader - no need to bind to those
continue;
}
this.propertyDescriptors.put(pd.getName(), pd);
@ -379,8 +380,7 @@ public final class CachedIntrospectionResults {
if (Modifier.isStatic(method.getModifiers()) ||
method.getDeclaringClass() == Object.class || method.getDeclaringClass() == Class.class ||
method.getParameterCount() > 0 || method.getReturnType() == void.class ||
ClassLoader.class.isAssignableFrom(method.getReturnType()) ||
ProtectionDomain.class.isAssignableFrom(method.getReturnType())) {
isInvalidReadOnlyPropertyType(method.getReturnType())) {
return false;
}
try {
@ -393,6 +393,12 @@ public final class CachedIntrospectionResults {
}
}
private boolean isInvalidReadOnlyPropertyType(@Nullable Class<?> returnType) {
return (returnType != null && (AutoCloseable.class.isAssignableFrom(returnType) ||
ClassLoader.class.isAssignableFrom(returnType) ||
ProtectionDomain.class.isAssignableFrom(returnType)));
}
BeanInfo getBeanInfo() {
return this.beanInfo;

21
spring-beans/src/test/java/org/springframework/beans/BeanWrapperTests.java
View File

@ -25,6 +25,7 @@ import org.junit.jupiter.api.Test;
import org.springframework.beans.testfixture.beans.TestBean;
import org.springframework.core.OverridingClassLoader;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.UrlResource;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
@ -153,7 +154,7 @@ class BeanWrapperTests extends AbstractPropertyAccessorTests {
}
@Test
void propertyDescriptors() {
void propertyDescriptors() throws Exception {
TestBean target = new TestBean();
target.setSpouse(new TestBean());
BeanWrapper accessor = createAccessor(target);
@ -182,11 +183,29 @@ class BeanWrapperTests extends AbstractPropertyAccessorTests {
assertThat(accessor.isReadableProperty("class.package")).isFalse();
assertThat(accessor.isReadableProperty("class.module")).isFalse();
assertThat(accessor.isReadableProperty("class.classLoader")).isFalse();
assertThat(accessor.isReadableProperty("class.name")).isTrue();
assertThat(accessor.isReadableProperty("class.simpleName")).isTrue();
assertThat(accessor.isReadableProperty("classLoader")).isTrue();
assertThat(accessor.isWritableProperty("classLoader")).isTrue();
OverridingClassLoader ocl = new OverridingClassLoader(getClass().getClassLoader());
accessor.setPropertyValue("classLoader", ocl);
assertThat(accessor.getPropertyValue("classLoader")).isSameAs(ocl);
accessor = createAccessor(new UrlResource("https://spring.io"));
assertThat(accessor.isReadableProperty("class.package")).isFalse();
assertThat(accessor.isReadableProperty("class.module")).isFalse();
assertThat(accessor.isReadableProperty("class.classLoader")).isFalse();
assertThat(accessor.isReadableProperty("class.name")).isTrue();
assertThat(accessor.isReadableProperty("class.simpleName")).isTrue();
assertThat(accessor.isReadableProperty("URL.protocol")).isTrue();
assertThat(accessor.isReadableProperty("URL.host")).isTrue();
assertThat(accessor.isReadableProperty("URL.port")).isTrue();
assertThat(accessor.isReadableProperty("URL.file")).isTrue();
assertThat(accessor.isReadableProperty("URL.content")).isFalse();
assertThat(accessor.isReadableProperty("inputStream")).isFalse();
assertThat(accessor.isReadableProperty("filename")).isTrue();
assertThat(accessor.isReadableProperty("description")).isTrue();
}
@Test