/**
* A repository of "shared secrets", which are a mechanism for calling implementation-private
* methods in another package without using reflection. A package-private class implements a public
* interface and provides the ability to call package-private methods within that package; the
* object implementing that interface is provided through a third package to which access is
* restricted. This framework avoids the primary disadvantage of using reflection for this purpose,
* namely the loss of compile-time checking.
*/
public class SharedSecrets {
private static final Unsafe unsafe = Unsafe.getUnsafe();
private static JavaUtilJarAccess javaUtilJarAccess;
private static JavaLangAccess javaLangAccess;
private static JavaIOAccess javaIOAccess;
private static JavaNetAccess javaNetAccess;
private static JavaNetHttpCookieAccess javaNetHttpCookieAccess;
private static JavaNioAccess javaNioAccess;
private static JavaIOFileDescriptorAccess javaIOFileDescriptorAccess;
private static JavaSecurityProtectionDomainAccess javaSecurityProtectionDomainAccess;
private static JavaSecurityAccess javaSecurityAccess;
private static JavaxSecurityAuthKerberosAccess javaxSecurityAuthKerberosAccess;
private static JavaUtilZipAccess javaUtilZipAccess;
public static JavaUtilJarAccess javaUtilJarAccess() {
if (javaUtilJarAccess == null) {
// Ensure JarFile is initialized; we know that that class
// provides the shared secret
unsafe.ensureClassInitialized(JarFile.class);
}
return javaUtilJarAccess;
}
public static void setJavaUtilJarAccess(JavaUtilJarAccess access) {
javaUtilJarAccess = access;
}
public static void setJavaLangAccess(JavaLangAccess jla) {
javaLangAccess = jla;
}
public static JavaLangAccess getJavaLangAccess() {
return javaLangAccess;
}
public static void setJavaNetAccess(JavaNetAccess jna) {
javaNetAccess = jna;
}
public static JavaNetAccess getJavaNetAccess() {
return javaNetAccess;
}
public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) {
javaNetHttpCookieAccess = a;
}
public static JavaNetHttpCookieAccess getJavaNetHttpCookieAccess() {
if (javaNetHttpCookieAccess == null) unsafe.ensureClassInitialized(java.net.HttpCookie.class);
return javaNetHttpCookieAccess;
}
public static void setJavaNioAccess(JavaNioAccess jna) {
javaNioAccess = jna;
}
public static JavaNioAccess getJavaNioAccess() {
if (javaNioAccess == null) {
// Ensure java.nio.ByteOrder is initialized; we know that
// this class initializes java.nio.Bits that provides the
// shared secret.
unsafe.ensureClassInitialized(java.nio.ByteOrder.class);
}
return javaNioAccess;
}
public static void setJavaIOAccess(JavaIOAccess jia) {
javaIOAccess = jia;
}
public static JavaIOAccess getJavaIOAccess() {
if (javaIOAccess == null) {
unsafe.ensureClassInitialized(Console.class);
}
return javaIOAccess;
}
public static void setJavaIOFileDescriptorAccess(JavaIOFileDescriptorAccess jiofda) {
javaIOFileDescriptorAccess = jiofda;
}
public static JavaIOFileDescriptorAccess getJavaIOFileDescriptorAccess() {
if (javaIOFileDescriptorAccess == null) unsafe.ensureClassInitialized(FileDescriptor.class);
return javaIOFileDescriptorAccess;
}
public static void setJavaSecurityProtectionDomainAccess(
JavaSecurityProtectionDomainAccess jspda) {
javaSecurityProtectionDomainAccess = jspda;
}
public static JavaSecurityProtectionDomainAccess getJavaSecurityProtectionDomainAccess() {
if (javaSecurityProtectionDomainAccess == null)
unsafe.ensureClassInitialized(ProtectionDomain.class);
return javaSecurityProtectionDomainAccess;
}
public static void setJavaSecurityAccess(JavaSecurityAccess jsa) {
javaSecurityAccess = jsa;
}
public static JavaSecurityAccess getJavaSecurityAccess() {
if (javaSecurityAccess == null) {
unsafe.ensureClassInitialized(AccessController.class);
}
return javaSecurityAccess;
}
public static void setJavaxSecurityAuthKerberosAccess(JavaxSecurityAuthKerberosAccess jsaka) {
javaxSecurityAuthKerberosAccess = jsaka;
}
public static JavaxSecurityAuthKerberosAccess getJavaxSecurityAuthKerberosAccess() {
if (javaxSecurityAuthKerberosAccess == null) unsafe.ensureClassInitialized(KeyTab.class);
return javaxSecurityAuthKerberosAccess;
}
public static void setJavaUtilZipAccess(JavaUtilZipAccess access) {
javaUtilZipAccess = access;
}
public static JavaUtilZipAccess getJavaUtilZipAccess() {
if (javaUtilZipAccess == null) {
unsafe.ensureClassInitialized(Adler32.class);
}
return javaUtilZipAccess;
}
}
/**
* A repository of "shared secrets", which are a mechanism for calling implementation-private
* methods in another package without using reflection. A package-private class implements a public
* interface and provides the ability to call package-private methods within that package; the
* object implementing that interface is provided through a third package to which access is
* restricted. This framework avoids the primary disadvantage of using reflection for this purpose,
* namely the loss of compile-time checking.
*/
public class SharedSecrets {
private static final Unsafe unsafe = Unsafe.getUnsafe();
private static JavaUtilJarAccess javaUtilJarAccess;
private static JavaLangAccess javaLangAccess = LangHelper.getJavaLangAccess();
private static JavaIOAccess javaIOAccess;
private static JavaNetAccess javaNetAccess;
private static JavaNetHttpCookieAccess javaNetHttpCookieAccess;
private static JavaNioAccess javaNioAccess;
private static JavaSecurityProtectionDomainAccess javaSecurityProtectionDomainAccess;
private static JavaSecurityAccess javaSecurityAccess;
private static JavaxSecurityAuthKerberosAccess javaxSecurityAuthKerberosAccess;
private static JavaAWTAccess javaAWTAccess;
public static JavaUtilJarAccess javaUtilJarAccess() {
if (javaUtilJarAccess == null) {
// Ensure JarFile is initialized; we know that that class
// provides the shared secret
unsafe.ensureClassInitialized(JarFile.class);
}
return javaUtilJarAccess;
}
public static void setJavaUtilJarAccess(JavaUtilJarAccess access) {
javaUtilJarAccess = access;
}
public static JavaLangAccess getJavaLangAccess() {
return javaLangAccess;
}
public static void setJavaNetAccess(JavaNetAccess jna) {
javaNetAccess = jna;
}
public static JavaNetAccess getJavaNetAccess() {
return javaNetAccess;
}
public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) {
javaNetHttpCookieAccess = a;
}
public static JavaNetHttpCookieAccess getJavaNetHttpCookieAccess() {
if (javaNetHttpCookieAccess == null) unsafe.ensureClassInitialized(java.net.HttpCookie.class);
return javaNetHttpCookieAccess;
}
public static void setJavaNioAccess(JavaNioAccess jna) {
javaNioAccess = jna;
}
public static JavaNioAccess getJavaNioAccess() {
if (javaNioAccess == null) {
// [IKVM] OpenJDK initializes java.nio.ByteOrder here, but that doesn't work
java.nio.ByteOrder.nativeOrder();
}
return javaNioAccess;
}
public static void setJavaIOAccess(JavaIOAccess jia) {
javaIOAccess = jia;
}
public static JavaIOAccess getJavaIOAccess() {
if (javaIOAccess == null) {
unsafe.ensureClassInitialized(Console.class);
}
return javaIOAccess;
}
public static void setJavaSecurityProtectionDomainAccess(
JavaSecurityProtectionDomainAccess jspda) {
javaSecurityProtectionDomainAccess = jspda;
}
public static JavaSecurityProtectionDomainAccess getJavaSecurityProtectionDomainAccess() {
if (javaSecurityProtectionDomainAccess == null)
unsafe.ensureClassInitialized(ProtectionDomain.class);
return javaSecurityProtectionDomainAccess;
}
public static void setJavaSecurityAccess(JavaSecurityAccess jsa) {
javaSecurityAccess = jsa;
}
public static JavaSecurityAccess getJavaSecurityAccess() {
if (javaSecurityAccess == null) {
// [IKVM] OpenJDK initializes AccessController here, but that's a bug
unsafe.ensureClassInitialized(ProtectionDomain.class);
}
return javaSecurityAccess;
}
public static void setJavaxSecurityAuthKerberosAccess(JavaxSecurityAuthKerberosAccess jsaka) {
javaxSecurityAuthKerberosAccess = jsaka;
}
public static JavaxSecurityAuthKerberosAccess getJavaxSecurityAuthKerberosAccess() {
if (javaxSecurityAuthKerberosAccess == null) unsafe.ensureClassInitialized(KeyTab.class);
return javaxSecurityAuthKerberosAccess;
}
public static void setJavaAWTAccess(JavaAWTAccess jaa) {
javaAWTAccess = jaa;
}
public static JavaAWTAccess getJavaAWTAccess() {
// this may return null in which case calling code needs to
// provision for.
if (javaAWTAccess == null || javaAWTAccess.getContext() == null) {
return null;
}
return javaAWTAccess;
}
}
public TypeUniverse() {
Providers providers =
Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend().getProviders();
metaAccess = providers.getMetaAccess();
constantReflection = providers.getConstantReflection();
snippetReflection = Graal.getRequiredCapability(SnippetReflectionProvider.class);
Unsafe theUnsafe = null;
try {
theUnsafe = Unsafe.getUnsafe();
} catch (Exception e) {
try {
Field theUnsafeField = Unsafe.class.getDeclaredField("theUnsafe");
theUnsafeField.setAccessible(true);
theUnsafe = (Unsafe) theUnsafeField.get(null);
} catch (Exception e1) {
throw (InternalError) new InternalError("unable to initialize unsafe").initCause(e1);
}
}
unsafe = theUnsafe;
Class<?>[] initialClasses = {
void.class,
boolean.class,
byte.class,
short.class,
char.class,
int.class,
float.class,
long.class,
double.class,
Object.class,
Class.class,
ClassLoader.class,
String.class,
Serializable.class,
Cloneable.class,
Test.class,
TestMetaAccessProvider.class,
List.class,
Collection.class,
Map.class,
Queue.class,
HashMap.class,
LinkedHashMap.class,
IdentityHashMap.class,
AbstractCollection.class,
AbstractList.class,
ArrayList.class
};
for (Class<?> c : initialClasses) {
addClass(c);
}
for (Field f : Constant.class.getDeclaredFields()) {
int mods = f.getModifiers();
if (f.getType() == Constant.class
&& Modifier.isPublic(mods)
&& Modifier.isStatic(mods)
&& Modifier.isFinal(mods)) {
try {
Constant c = (Constant) f.get(null);
if (c != null) {
constants.add(c);
}
} catch (Exception e) {
}
}
}
for (Class<?> c : classes) {
if (c != void.class && !c.isArray()) {
constants.add(snippetReflection.forObject(Array.newInstance(c, 42)));
}
}
constants.add(snippetReflection.forObject(new ArrayList<>()));
constants.add(snippetReflection.forObject(new IdentityHashMap<>()));
constants.add(snippetReflection.forObject(new LinkedHashMap<>()));
constants.add(snippetReflection.forObject(new TreeMap<>()));
constants.add(snippetReflection.forObject(new ArrayDeque<>()));
constants.add(snippetReflection.forObject(new LinkedList<>()));
constants.add(snippetReflection.forObject("a string"));
constants.add(snippetReflection.forObject(42));
constants.add(snippetReflection.forObject(String.class));
constants.add(snippetReflection.forObject(String[].class));
}
