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Fixes #2913 - ClassNotFoundException: sun.reflect.Reflection with JDK 11 

Replaced usage of sun.reflect.Reflection with a
SecurityManager subclass, so that it works in all JDKs.

Signed-off-by: Simone Bordet <simone.bordet@gmail.com>
This commit is contained in:
Simone Bordet 2018-09-19 12:46:39 +02:00
parent 9fae0c2fa0
commit 3384ff90ea
1 changed files with 18 additions and 7 deletions
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25
jetty-server/src/main/java/org/eclipse/jetty/server/handler/ContextHandler.java
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@ -21,7 +21,6 @@ package org.eclipse.jetty.server.handler;
import java.io.File; import java.io.File;
import java.io.IOException; import java.io.IOException;
import java.io.InputStream; import java.io.InputStream;
import java.lang.reflect.Method;
import java.net.MalformedURLException; import java.net.MalformedURLException;
import java.net.URI; import java.net.URI;
import java.net.URL; import java.net.URL;
@ -2585,19 +2584,18 @@ public class ContextHandler extends ScopedHandler implements Attributes, Gracefu
// no security manager just return the classloader // no security manager just return the classloader
if (!_usingSecurityManager) if (!_usingSecurityManager)
{
return _classLoader; return _classLoader;
}
else else
{ {
// check to see if the classloader of the caller is the same as the context // check to see if the classloader of the caller is the same as the context
// classloader, or a parent of it // classloader, or a parent of it, as required by the javadoc specification.
try try
{ {
Class<?> reflect = Loader.loadClass("sun.reflect.Reflection"); Class<?> caller = new Caller().getCallerClass(2);
Method getCallerClass = reflect.getMethod("getCallerClass",Integer.TYPE);
Class<?> caller = (Class<?>)getCallerClass.invoke(null,2);
boolean ok = false; boolean ok = false;
ClassLoader callerLoader = caller.getClassLoader(); ClassLoader callerLoader = caller == null ? null : caller.getClassLoader();
while (!ok && callerLoader != null) while (!ok && callerLoader != null)
{ {
if (callerLoader == _classLoader) if (callerLoader == _classLoader)
@ -3083,4 +3081,17 @@ public class ContextHandler extends ScopedHandler implements Attributes, Gracefu
*/ */
void exitScope(Context context, Request request); void exitScope(Context context, Request request);
} }
private static class Caller extends SecurityManager
{
public Class<?> getCallerClass(int depth)
{
if (depth < 0)
return null;
Class<?>[] classContext = getClassContext();
if (classContext.length <= depth)
return null;
return classContext[depth];
}
}
} }