[GR-70201] [GR-68576] Crema: Add support for invokedynamic.

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/hub/crema/CremaSupport.java

@@ -32,12 +32,15 @@
 
 import com.oracle.svm.core.hub.DynamicHub;
 import com.oracle.svm.core.hub.registry.SymbolsSupport;
+import com.oracle.svm.core.invoke.Target_java_lang_invoke_MemberName;
 import com.oracle.svm.espresso.classfile.ParserKlass;
 import com.oracle.svm.espresso.classfile.descriptors.ByteSequence;
+import com.oracle.svm.espresso.classfile.descriptors.Signature;
 import com.oracle.svm.espresso.classfile.descriptors.Symbol;
 import com.oracle.svm.espresso.classfile.descriptors.Type;
 
 import jdk.vm.ci.meta.JavaType;
+import jdk.vm.ci.meta.ResolvedJavaField;
 import jdk.vm.ci.meta.ResolvedJavaMethod;
 import jdk.vm.ci.meta.ResolvedJavaType;
 
@@ -47,6 +50,20 @@ public interface CremaSupport {
 
     int getAfterFieldsOffset(DynamicHub hub);
 
+    Target_java_lang_invoke_MemberName resolveMemberName(Target_java_lang_invoke_MemberName mn, Class<?> caller);
+
+    Object invokeBasic(Target_java_lang_invoke_MemberName memberName, Object methodHandle, Object[] args);
+
+    Object linkToVirtual(Object[] args);
+
+    Object linkToStatic(Object[] args);
+
+    Object linkToSpecial(Object[] args);
+
+    Object linkToInterface(Object[] args);
+
+    Object getStaticStorage(ResolvedJavaField resolved);
+
     interface CremaDispatchTable {
         int vtableLength();
 
@@ -97,6 +114,8 @@ default Class<?> findLoadedClass(JavaType unresolvedJavaType, ResolvedJavaType a
 
     Object getStaticStorage(Class<?> cls, boolean primitives, int layerNum);
 
+    ResolvedJavaMethod findMethodHandleIntrinsic(ResolvedJavaMethod signaturePolymorphicMethod, Symbol<Signature> signature);
+
     static CremaSupport singleton() {
         return ImageSingletons.lookup(CremaSupport.class);
     }

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/hub/registry/AbstractRuntimeClassRegistry.java

@@ -175,20 +175,17 @@ private static boolean isParallelClassLoader(ClassLoader loader) {
     protected abstract boolean loaderIsBootOrPlatform();
 
     public final Class<?> defineClass(Symbol<Type> typeOrNull, byte[] b, int off, int len, ClassDefinitionInfo info) {
-        if (isParallelClassLoader()) {
+        // GR-62338: for parallel class loaders this synchronization should be skipped.
+        Object syncObject = getClassLoader();
+        if (syncObject == null) {
+            syncObject = this;
+        }
+        synchronized (syncObject) {
             return defineClassInner(typeOrNull, b, off, len, info);
-        } else {
-            synchronized (getClassLoader()) {
-                return defineClassInner(typeOrNull, b, off, len, info);
-            }
         }
     }
 
     private Class<?> defineClassInner(Symbol<Type> typeOrNull, byte[] b, int off, int len, ClassDefinitionInfo info) {
-        if (isParallelClassLoader() || getClassLoader() == null) {
-            // GR-62338
-            throw VMError.unimplemented("Parallel class loading:" + getClassLoader());
-        }
         byte[] data = b;
         if (off != 0 || b.length != len) {
             if (len < 0) {
@@ -201,7 +198,7 @@ private Class<?> defineClassInner(Symbol<Type> typeOrNull, byte[] b, int off, in
         }
         ParserKlass parsed = parseClass(typeOrNull, info, data);
         Symbol<Type> type = typeOrNull == null ? parsed.getType() : typeOrNull;
-        assert typeOrNull == null || type == parsed.getType();
+        assert typeOrNull == null || type == parsed.getType() : typeOrNull + " vs. " + parsed.getType();
         if (info.addedToRegistry() && findLoadedClass(type) != null) {
             String kind;
             if (Modifier.isInterface(parsed.getFlags())) {

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/interpreter/InterpreterSupport.java

@@ -64,16 +64,14 @@ public static InterpreterSupport singleton() {
         return ImageSingletons.lookup(InterpreterSupport.class);
     }
 
-    /*
-     * Check if a given argument matches the inner class Interpreter.Root (holder of the interpreter
-     * dispatch loop).
+    /**
+     * Check if a given frame should be processed by {@link #getInterpretedMethodFrameInfo}.
      */
-    public abstract boolean isInterpreterRoot(Class<?> clazz);
+    public abstract boolean isInterpreterRoot(FrameInfoQueryResult frameInfo);
 
     /**
-     * Transforms an interpreter (root) frame into a frame of the interpreted method. The passed
-     * frame must be an interpreter root e.g. {@code isInterpreterRoot(frameInfo.getSourceClass())}
-     * otherwise a fatal exception is thrown.
+     * Transforms an interpreter (root) frame into a frame of the interpreted method. An error is
+     * thrown if the passed frame is not an {@link #isInterpreterRoot interpreter root}.
      *
      * @param frameInfo interpreter root frame
      * @param sp stack pointer of the interpreter frame

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/invoke/MethodHandleUtils.java

@@ -29,6 +29,7 @@
 import java.lang.invoke.MethodHandle;
 
 import com.oracle.svm.core.AlwaysInline;
+import com.oracle.svm.core.hub.RuntimeClassLoading;
 
 import sun.invoke.util.Wrapper;
 
@@ -127,4 +128,15 @@ public static short shortUnbox(Object retVal, Class<?> returnType) {
                 throw shouldNotReachHere("Unexpected type for unbox function");
         }
     }
+
+    /**
+     * Returns the resolved member if runtime class loading is enabled. Otherwise, always returns
+     * {@code null}.
+     */
+    public static ResolvedMember getResolvedMember(Target_java_lang_invoke_MemberName memberName) {
+        if (RuntimeClassLoading.isSupported()) {
+            return memberName.resolved;
+        }
+        return null;
+    }
 }

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/invoke/ResolvedMember.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2025, 2025, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.svm.core.invoke;
+
+/**
+ * This interface should be implemented by the possible resolution results of member names.
+ * 
+ * @see Target_java_lang_invoke_MemberName#resolved
+ */
+public interface ResolvedMember {
+}

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/invoke/Target_java_lang_invoke_MemberName.java

@@ -34,6 +34,8 @@
 import com.oracle.svm.core.annotate.RecomputeFieldValue;
 import com.oracle.svm.core.annotate.Substitute;
 import com.oracle.svm.core.annotate.TargetClass;
+import com.oracle.svm.core.annotate.TargetElement;
+import com.oracle.svm.core.hub.RuntimeClassLoading.WithRuntimeClassLoading;
 import com.oracle.svm.core.methodhandles.Target_java_lang_invoke_MethodHandleNatives;
 import com.oracle.svm.core.util.BasedOnJDKFile;
 import com.oracle.svm.core.util.VMError;
@@ -46,7 +48,16 @@ public final class Target_java_lang_invoke_MemberName {
     @Inject @RecomputeFieldValue(kind = RecomputeFieldValue.Kind.Reset)//
     public MethodHandleIntrinsic intrinsic;
 
+    /**
+     * This is used by crema to store metadata for the resolved field or method.
+     */
+    @Inject @RecomputeFieldValue(kind = RecomputeFieldValue.Kind.Reset)//
+    @TargetElement(onlyWith = WithRuntimeClassLoading.class)//
+    public ResolvedMember resolved;
+
+    @Alias public Class<?> clazz;
     @Alias public String name;
+    @Alias public Object type;
     @Alias public int flags;
     @Alias public Object resolution;
 

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/Target_java_lang_ClassLoader.java

@@ -353,7 +353,8 @@ private static Class<?> defineClass0(ClassLoader loader, Class<?> lookup, String
                     @SuppressWarnings("unused") boolean initialize, int flags, Object classData) {
         // Note that if name is not null, it is a binary name in either / or .-form
         String actualName = name;
-        if (LambdaUtils.isLambdaClassName(name)) {
+        assert !(PredefinedClassesSupport.hasBytecodeClasses() && RuntimeClassLoading.isSupported());
+        if (!RuntimeClassLoading.isSupported() && LambdaUtils.isLambdaClassName(name)) {
             actualName += Digest.digest(b);
         }
         boolean isNestMate = (flags & ClassLoaderHelper.NESTMATE_CLASS) != 0;

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/methodhandles/MethodHandleInterpreterUtils.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2020, 2020, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.svm.core.methodhandles;
+
+import java.lang.invoke.MethodHandle;
+
+import com.oracle.svm.core.SubstrateUtil;
+import com.oracle.svm.core.invoke.Target_java_lang_invoke_MemberName;
+
+public final class MethodHandleInterpreterUtils {
+    private MethodHandleInterpreterUtils() {
+    }
+
+    public static Target_java_lang_invoke_MemberName extractVMEntry(MethodHandle handle) {
+        Target_java_lang_invoke_LambdaForm lform = SubstrateUtil.cast(handle, Target_java_lang_invoke_MethodHandle.class).internalForm();
+        return lform.vmentry;
+    }
+}

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/methodhandles/Target_java_lang_invoke_BootstrapMethodInvoker_VM_BSCI.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2025, 2025, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.svm.core.methodhandles;
+
+import static com.oracle.svm.core.util.VMError.unsupportedFeature;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+
+import com.oracle.svm.core.annotate.Substitute;
+import com.oracle.svm.core.annotate.TargetClass;
+import com.oracle.svm.core.hub.RuntimeClassLoading.WithRuntimeClassLoading;
+import com.oracle.svm.core.util.BasedOnJDKFile;
+
+/**
+ * This is used in a special case of {@code BootstrapMethodInvoker.invoke} (See
+ * {@code @BasedOnJDKFile} annotation on this class) which is not currently used in SVM.
+ * <p>
+ * These substitutions cut paths that would lead to useless code being included and some deleted
+ * methods being reached.
+ */
+@TargetClass(className = "java.lang.invoke.BootstrapMethodInvoker", innerClass = "VM_BSCI", onlyWith = WithRuntimeClassLoading.class)
+@BasedOnJDKFile("https://github.com/openjdk/jdk/blob/jdk-25+36/src/java.base/share/classes/java/lang/invoke/BootstrapMethodInvoker.java#L113-L126")
+final class Target_java_lang_invoke_BootstrapMethodInvoker_VM_BSCI {
+    @Substitute
+    @SuppressWarnings("unused")
+    Target_java_lang_invoke_BootstrapMethodInvoker_VM_BSCI(MethodHandle bsm, String name, Object type, MethodHandles.Lookup lookup, int[] indexInfo) {
+        throw unsupportedFeature("BootstrapMethodInvoker$VM_BSCI");
+    }
+
+    @Substitute
+    @SuppressWarnings({"unused", "static-method"})
+    Object fillCache(int i) {
+        throw unsupportedFeature("BootstrapMethodInvoker$VM_BSCI.fillCache");
+    }
+
+    @Substitute
+    @SuppressWarnings({"unused", "static-method"})
+    public int copyConstants(int start, int end, Object[] buf, int pos) {
+        throw unsupportedFeature("BootstrapMethodInvoker$VM_BSCI.copyConstants");
+    }
+}

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/methodhandles/Target_java_lang_invoke_BoundMethodHandle.java

@@ -38,6 +38,7 @@
 import com.oracle.svm.core.annotate.TargetClass;
 import com.oracle.svm.core.annotate.TargetElement;
 import com.oracle.svm.core.fieldvaluetransformer.NewEmptyArrayFieldValueTransformer;
+import com.oracle.svm.core.hub.RuntimeClassLoading.NoRuntimeClassLoading;
 
 /**
  * In the JDK implementation of method handles, each bound method handle is an instance of a
@@ -73,7 +74,7 @@ final class Target_java_lang_invoke_BoundMethodHandle {
  * We hijack the species with no bound parameters for our implementation since it already inherits
  * from BoundMethodHandle and doesn't contain any superfluous members.
  */
-@TargetClass(className = "java.lang.invoke.SimpleMethodHandle")
+@TargetClass(className = "java.lang.invoke.SimpleMethodHandle", onlyWith = NoRuntimeClassLoading.class)
 final class Target_java_lang_invoke_SimpleMethodHandle {
     /*
      * Since we represent all the bound method handle species with the basic one, the species data
@@ -130,7 +131,7 @@ Target_java_lang_invoke_BoundMethodHandle copyWith(MethodType type, Target_java_
 }
 
 /* Hardcoded species, needs a special case to avoid initialization */
-@TargetClass(className = "java.lang.invoke.BoundMethodHandle", innerClass = "Species_L")
+@TargetClass(className = "java.lang.invoke.BoundMethodHandle", innerClass = "Species_L", onlyWith = NoRuntimeClassLoading.class)
 final class Target_java_lang_invoke_BoundMethodHandle_Species_L {
     @Substitute
     static Target_java_lang_invoke_BoundMethodHandle make(MethodType mt, Target_java_lang_invoke_LambdaForm lf, Object argL0) {

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/methodhandles/Target_java_lang_invoke_LambdaForm.java

@@ -30,6 +30,8 @@
 import com.oracle.svm.core.annotate.RecomputeFieldValue;
 import com.oracle.svm.core.annotate.Substitute;
 import com.oracle.svm.core.annotate.TargetClass;
+import com.oracle.svm.core.annotate.TargetElement;
+import com.oracle.svm.core.hub.RuntimeClassLoading.NoRuntimeClassLoading;
 import com.oracle.svm.core.invoke.Target_java_lang_invoke_MemberName;
 import com.oracle.svm.util.ReflectionUtil;
 
@@ -42,10 +44,18 @@ public final class Target_java_lang_invoke_LambdaForm {
     @Alias @RecomputeFieldValue(kind = RecomputeFieldValue.Kind.Custom, declClass = LambdaFormCacheTransformer.class)//
     volatile Object transformCache;
 
+    // isCompiled needs to be reset if vmentry is reset
+    @Alias @RecomputeFieldValue(kind = RecomputeFieldValue.Kind.Reset)//
+    boolean isCompiled;
+
     @Alias
     native String lambdaName();
 
+    @Alias
+    native void prepare();
+
     @Substitute
+    @TargetElement(onlyWith = NoRuntimeClassLoading.class)
     void compileToBytecode() {
         /*
          * Those lambda form types are required to be precompiled to bytecode during method handles
@@ -62,6 +72,7 @@ void compileToBytecode() {
      */
     @Substitute
     @SuppressWarnings("static-method")
+    @TargetElement(onlyWith = NoRuntimeClassLoading.class)
     private boolean forceInterpretation() {
         return true;
     }