--- a/jdk/src/share/classes/com/sun/jmx/mbeanserver/Introspector.java Mon Nov 23 09:51:52 2009 -0800
+++ b/jdk/src/share/classes/com/sun/jmx/mbeanserver/Introspector.java Mon Nov 23 13:00:34 2009 -0800
@@ -26,6 +26,7 @@
package com.sun.jmx.mbeanserver;
import java.lang.annotation.Annotation;
+import java.lang.ref.SoftReference;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
@@ -33,8 +34,13 @@
import java.lang.reflect.Proxy;
import java.lang.reflect.UndeclaredThrowableException;
import java.util.Arrays;
+import java.util.Collections;
import java.util.HashMap;
+import java.util.List;
+import java.util.LinkedList;
+import java.util.Locale;
import java.util.Map;
+import java.util.WeakHashMap;
import javax.management.Descriptor;
import javax.management.DescriptorKey;
@@ -506,11 +512,25 @@
} else {
// Java Beans introspection
//
- BeanInfo bi = java.beans.Introspector.getBeanInfo(complex.getClass());
- PropertyDescriptor[] pds = bi.getPropertyDescriptors();
- for (PropertyDescriptor pd : pds)
- if (pd.getName().equals(element))
- return pd.getReadMethod().invoke(complex);
+ Class<?> clazz = complex.getClass();
+ Method readMethod = null;
+ if (BeansHelper.isAvailable()) {
+ Object bi = BeansHelper.getBeanInfo(clazz);
+ Object[] pds = BeansHelper.getPropertyDescriptors(bi);
+ for (Object pd: pds) {
+ if (BeansHelper.getPropertyName(pd).equals(element)) {
+ readMethod = BeansHelper.getReadMethod(pd);
+ break;
+ }
+ }
+ } else {
+ // Java Beans not available so use simple introspection
+ // to locate method
+ readMethod = SimpleIntrospector.getReadMethod(clazz, element);
+ }
+ if (readMethod != null)
+ return readMethod.invoke(complex);
+
throw new AttributeNotFoundException(
"Could not find the getter method for the property " +
element + " using the Java Beans introspector");
@@ -524,4 +544,235 @@
new AttributeNotFoundException(e.getMessage()), e);
}
}
+
+ /**
+ * A simple introspector that uses reflection to analyze a class and
+ * identify its "getter" methods. This class is intended for use only when
+ * Java Beans is not present (which implies that there isn't explicit
+ * information about the bean available).
+ */
+ private static class SimpleIntrospector {
+ private SimpleIntrospector() { }
+
+ private static final String GET_METHOD_PREFIX = "get";
+ private static final String IS_METHOD_PREFIX = "is";
+
+ // cache to avoid repeated lookups
+ private static final Map<Class<?>,SoftReference<List<Method>>> cache =
+ Collections.synchronizedMap(
+ new WeakHashMap<Class<?>,SoftReference<List<Method>>> ());
+
+ /**
+ * Returns the list of methods cached for the given class, or {@code null}
+ * if not cached.
+ */
+ private static List<Method> getCachedMethods(Class<?> clazz) {
+ // return cached methods if possible
+ SoftReference<List<Method>> ref = cache.get(clazz);
+ if (ref != null) {
+ List<Method> cached = ref.get();
+ if (cached != null)
+ return cached;
+ }
+ return null;
+ }
+
+ /**
+ * Returns {@code true} if the given method is a "getter" method (where
+ * "getter" method is a public method of the form getXXX or "boolean
+ * isXXX")
+ */
+ static boolean isReadMethod(Method method) {
+ // ignore static methods
+ int modifiers = method.getModifiers();
+ if (Modifier.isStatic(modifiers))
+ return false;
+
+ String name = method.getName();
+ Class<?>[] paramTypes = method.getParameterTypes();
+ int paramCount = paramTypes.length;
+
+ if (paramCount == 0 && name.length() > 2) {
+ // boolean isXXX()
+ if (name.startsWith(IS_METHOD_PREFIX))
+ return (method.getReturnType() == boolean.class);
+ // getXXX()
+ if (name.length() > 3 && name.startsWith(GET_METHOD_PREFIX))
+ return (method.getReturnType() != void.class);
+ }
+ return false;
+ }
+
+ /**
+ * Returns the list of "getter" methods for the given class. The list
+ * is ordered so that isXXX methods appear before getXXX methods - this
+ * is for compatability with the JavaBeans Introspector.
+ */
+ static List<Method> getReadMethods(Class<?> clazz) {
+ // return cached result if available
+ List<Method> cachedResult = getCachedMethods(clazz);
+ if (cachedResult != null)
+ return cachedResult;
+
+ // get list of public methods, filtering out methods that have
+ // been overridden to return a more specific type.
+ List<Method> methods =
+ StandardMBeanIntrospector.getInstance().getMethods(clazz);
+ methods = MBeanAnalyzer.eliminateCovariantMethods(methods);
+
+ // filter out the non-getter methods
+ List<Method> result = new LinkedList<Method>();
+ for (Method m: methods) {
+ if (isReadMethod(m)) {
+ // favor isXXX over getXXX
+ if (m.getName().startsWith(IS_METHOD_PREFIX)) {
+ result.add(0, m);
+ } else {
+ result.add(m);
+ }
+ }
+ }
+
+ // add result to cache
+ cache.put(clazz, new SoftReference<List<Method>>(result));
+
+ return result;
+ }
+
+ /**
+ * Returns the "getter" to read the given property from the given class or
+ * {@code null} if no method is found.
+ */
+ static Method getReadMethod(Class<?> clazz, String property) {
+ // first character in uppercase (compatability with JavaBeans)
+ property = property.substring(0, 1).toUpperCase(Locale.ENGLISH) +
+ property.substring(1);
+ String getMethod = GET_METHOD_PREFIX + property;
+ String isMethod = IS_METHOD_PREFIX + property;
+ for (Method m: getReadMethods(clazz)) {
+ String name = m.getName();
+ if (name.equals(isMethod) || name.equals(getMethod)) {
+ return m;
+ }
+ }
+ return null;
+ }
+ }
+
+ /**
+ * A class that provides access to the JavaBeans Introspector and
+ * PropertyDescriptors without creating a static dependency on java.beans.
+ */
+ private static class BeansHelper {
+ private static final Class<?> introspectorClass =
+ getClass("java.beans.Introspector");
+ private static final Class<?> beanInfoClass =
+ (introspectorClass == null) ? null : getClass("java.beans.BeanInfo");
+ private static final Class<?> getPropertyDescriptorClass =
+ (beanInfoClass == null) ? null : getClass("java.beans.PropertyDescriptor");
+
+ private static final Method getBeanInfo =
+ getMethod(introspectorClass, "getBeanInfo", Class.class);
+ private static final Method getPropertyDescriptors =
+ getMethod(beanInfoClass, "getPropertyDescriptors");
+ private static final Method getPropertyName =
+ getMethod(getPropertyDescriptorClass, "getName");
+ private static final Method getReadMethod =
+ getMethod(getPropertyDescriptorClass, "getReadMethod");
+
+ private static Class<?> getClass(String name) {
+ try {
+ return Class.forName(name, true, null);
+ } catch (ClassNotFoundException e) {
+ return null;
+ }
+ }
+ private static Method getMethod(Class<?> clazz,
+ String name,
+ Class<?>... paramTypes)
+ {
+ if (clazz != null) {
+ try {
+ return clazz.getMethod(name, paramTypes);
+ } catch (NoSuchMethodException e) {
+ throw new AssertionError(e);
+ }
+ } else {
+ return null;
+ }
+ }
+
+ private BeansHelper() { }
+
+ /**
+ * Returns {@code true} if java.beans is available.
+ */
+ static boolean isAvailable() {
+ return introspectorClass != null;
+ }
+
+ /**
+ * Invokes java.beans.Introspector.getBeanInfo(Class)
+ */
+ static Object getBeanInfo(Class<?> clazz) throws Exception {
+ try {
+ return getBeanInfo.invoke(null, clazz);
+ } catch (InvocationTargetException e) {
+ Throwable cause = e.getCause();
+ if (cause instanceof Exception)
+ throw (Exception)cause;
+ throw new AssertionError(e);
+ } catch (IllegalAccessException iae) {
+ throw new AssertionError(iae);
+ }
+ }
+
+ /**
+ * Invokes java.beans.BeanInfo.getPropertyDescriptors()
+ */
+ static Object[] getPropertyDescriptors(Object bi) {
+ try {
+ return (Object[])getPropertyDescriptors.invoke(bi);
+ } catch (InvocationTargetException e) {
+ Throwable cause = e.getCause();
+ if (cause instanceof RuntimeException)
+ throw (RuntimeException)cause;
+ throw new AssertionError(e);
+ } catch (IllegalAccessException iae) {
+ throw new AssertionError(iae);
+ }
+ }
+
+ /**
+ * Invokes java.beans.PropertyDescriptor.getName()
+ */
+ static String getPropertyName(Object pd) {
+ try {
+ return (String)getPropertyName.invoke(pd);
+ } catch (InvocationTargetException e) {
+ Throwable cause = e.getCause();
+ if (cause instanceof RuntimeException)
+ throw (RuntimeException)cause;
+ throw new AssertionError(e);
+ } catch (IllegalAccessException iae) {
+ throw new AssertionError(iae);
+ }
+ }
+
+ /**
+ * Invokes java.beans.PropertyDescriptor.getReadMethod()
+ */
+ static Method getReadMethod(Object pd) {
+ try {
+ return (Method)getReadMethod.invoke(pd);
+ } catch (InvocationTargetException e) {
+ Throwable cause = e.getCause();
+ if (cause instanceof RuntimeException)
+ throw (RuntimeException)cause;
+ throw new AssertionError(e);
+ } catch (IllegalAccessException iae) {
+ throw new AssertionError(iae);
+ }
+ }
+ }
}
--- a/jdk/src/share/classes/com/sun/jmx/mbeanserver/MBeanIntrospector.java Mon Nov 23 09:51:52 2009 -0800
+++ b/jdk/src/share/classes/com/sun/jmx/mbeanserver/MBeanIntrospector.java Mon Nov 23 13:00:34 2009 -0800
@@ -175,7 +175,7 @@
/**
* Get the methods to be analyzed to build the MBean interface.
*/
- List<Method> getMethods(final Class<?> mbeanType) throws Exception {
+ List<Method> getMethods(final Class<?> mbeanType) {
return Arrays.asList(mbeanType.getMethods());
}
--- a/jdk/src/share/classes/sun/security/validator/PKIXValidator.java Mon Nov 23 09:51:52 2009 -0800
+++ b/jdk/src/share/classes/sun/security/validator/PKIXValidator.java Mon Nov 23 13:00:34 2009 -0800
@@ -150,9 +150,17 @@
("null or zero-length certificate chain");
}
if (TRY_VALIDATOR) {
- // check if chain contains trust anchor
+ // check that chain is in correct order and check if chain contains
+ // trust anchor
+ X500Principal prevIssuer = null;
for (int i = 0; i < chain.length; i++) {
- if (trustedCerts.contains(chain[i])) {
+ X509Certificate cert = chain[i];
+ if (i != 0 &&
+ !cert.getSubjectX500Principal().equals(prevIssuer)) {
+ // chain is not ordered correctly, call builder instead
+ return doBuild(chain, otherCerts);
+ }
+ if (trustedCerts.contains(cert)) {
if (i == 0) {
return new X509Certificate[] {chain[0]};
}
@@ -161,6 +169,7 @@
System.arraycopy(chain, 0, newChain, 0, i);
return doValidate(newChain);
}
+ prevIssuer = cert.getIssuerX500Principal();
}
// apparently issued by trust anchor?
@@ -303,5 +312,4 @@
("PKIX path building failed: " + e.toString(), e);
}
}
-
}