fix: add java.lang.invoke.MethodHandleNatives.registerNatives()V and jdk.internal.misc.PreviewFeatures.isPreviewEnabled()Z

ristretto_vm/src/native_methods/java_lang_invoke_methodhandles.rs

@@ -0,0 +1,19 @@
+use crate::arguments::Arguments;
+use crate::native_methods::registry::MethodRegistry;
+use crate::thread::Thread;
+use crate::Result;
+use async_recursion::async_recursion;
+use ristretto_classloader::Value;
+use std::sync::Arc;
+
+/// Register all native methods for java.lang.invoke.MethodHandleNatives.
+pub(crate) fn register(registry: &mut MethodRegistry) {
+    let class_name = "java/lang/invoke/MethodHandleNatives";
+    registry.register(class_name, "registerNatives", "()V", register_natives);
+}
+
+#[expect(clippy::needless_pass_by_value)]
+#[async_recursion(?Send)]
+async fn register_natives(_thread: Arc<Thread>, _arguments: Arguments) -> Result<Option<Value>> {
+    Ok(None)
+}

ristretto_vm/src/native_methods/jdk_internal_misc_previewfeatures.rs

@@ -0,0 +1,22 @@
+use crate::arguments::Arguments;
+use crate::native_methods::registry::MethodRegistry;
+use crate::thread::Thread;
+use crate::Result;
+use async_recursion::async_recursion;
+use ristretto_classloader::Value;
+use std::sync::Arc;
+
+/// Register all native methods for jdk.internal.misc.PreviewFeatures.
+pub(crate) fn register(registry: &mut MethodRegistry) {
+    let class_name = "jdk/internal/misc/PreviewFeatures";
+    registry.register(class_name, "isPreviewEnabled", "()Z", is_preview_enabled);
+}
+
+#[expect(clippy::needless_pass_by_value)]
+#[async_recursion(?Send)]
+pub(crate) async fn is_preview_enabled(
+    _thread: Arc<Thread>,
+    _arguments: Arguments,
+) -> Result<Option<Value>> {
+    Ok(Some(Value::from(false)))
+}

ristretto_vm/src/native_methods/mod.rs

@@ -12,6 +12,7 @@ mod java_lang_class;
 mod java_lang_classloader;
 mod java_lang_double;
 mod java_lang_float;
+mod java_lang_invoke_methodhandles;
 mod java_lang_object;
 mod java_lang_processenvironment;
 mod java_lang_processimpl;
@@ -29,6 +30,7 @@ mod java_security_accesscontroller;
 mod jdk_internal_loader_bootloader;
 mod jdk_internal_loader_nativelibraries;
 mod jdk_internal_misc_cds;
+mod jdk_internal_misc_previewfeatures;
 mod jdk_internal_misc_scopedmemoryaccess;
 mod jdk_internal_misc_signal;
 mod jdk_internal_misc_unsafe;

ristretto_vm/src/native_methods/registry.rs

@@ -3,12 +3,12 @@ use crate::native_methods::{
     java_awt_component, java_awt_container, java_awt_frame, java_awt_toolkit, java_awt_window,
     java_io_filedescriptor, java_io_fileinputstream, java_io_fileoutputstream,
     java_io_unixfilesystem, java_io_winntfilesystem, java_lang_class, java_lang_classloader,
-    java_lang_double, java_lang_float, java_lang_object, java_lang_processenvironment,
-    java_lang_processimpl, java_lang_ref_reference, java_lang_reflect_array, java_lang_runtime,
-    java_lang_securitymanager, java_lang_shutdown, java_lang_stacktraceelement,
-    java_lang_stringutf16, java_lang_system, java_lang_thread, java_lang_throwable,
-    java_security_accesscontroller, jdk_internal_loader_bootloader,
-    jdk_internal_loader_nativelibraries, jdk_internal_misc_cds,
+    java_lang_double, java_lang_float, java_lang_invoke_methodhandles, java_lang_object,
+    java_lang_processenvironment, java_lang_processimpl, java_lang_ref_reference,
+    java_lang_reflect_array, java_lang_runtime, java_lang_securitymanager, java_lang_shutdown,
+    java_lang_stacktraceelement, java_lang_stringutf16, java_lang_system, java_lang_thread,
+    java_lang_throwable, java_security_accesscontroller, jdk_internal_loader_bootloader,
+    jdk_internal_loader_nativelibraries, jdk_internal_misc_cds, jdk_internal_misc_previewfeatures,
     jdk_internal_misc_scopedmemoryaccess, jdk_internal_misc_signal, jdk_internal_misc_unsafe,
     jdk_internal_misc_vm, jdk_internal_module_modulebootstrap, jdk_internal_reflect_reflection,
     jdk_internal_util_systemprops_raw, sun_io_win32errormode, sun_misc_unsafe, sun_misc_vm,
@@ -59,6 +59,7 @@ impl MethodRegistry {
         java_lang_classloader::register(&mut method_registry);
         java_lang_double::register(&mut method_registry);
         java_lang_float::register(&mut method_registry);
+        java_lang_invoke_methodhandles::register(&mut method_registry);
         java_lang_object::register(&mut method_registry);
         java_lang_processenvironment::register(&mut method_registry);
         java_lang_processimpl::register(&mut method_registry);
@@ -76,6 +77,7 @@ impl MethodRegistry {
         jdk_internal_loader_bootloader::register(&mut method_registry);
         jdk_internal_loader_nativelibraries::register(&mut method_registry);
         jdk_internal_misc_cds::register(&mut method_registry);
+        jdk_internal_misc_previewfeatures::register(&mut method_registry);
         jdk_internal_misc_scopedmemoryaccess::register(&mut method_registry);
         jdk_internal_misc_signal::register(&mut method_registry);
         jdk_internal_misc_unsafe::register(&mut method_registry);