add support for openjdk=$JDK8_HOME

All tests pass for the process=compile build.  Next step: process=interpret.

.travis.yml

@@ -1,6 +1,9 @@
 language: cpp
 cache: apt
 
+jdk:
+  - oraclejdk8
+
 os:
   - linux
   - osx

classpath/avian/Classes.java

@@ -45,6 +45,8 @@ public class Classes {
 
   public static native VMClass toVMClass(Class c);
 
+  public static native VMMethod toVMMethod(Method m);
+  
   private static native VMClass resolveVMClass(ClassLoader loader, byte[] spec)
     throws ClassNotFoundException;
 

classpath/java/lang/invoke/LambdaMetafactory.java

@@ -155,7 +155,19 @@ public class LambdaMetafactory {
       write1(out, p.position() + 1);
     }
 
+    switch (implementation.kind) {
+    case MethodHandle.REF_invokeStatic:
       write1(out, invokestatic);
+      break;
+
+    case MethodHandle.REF_invokeSpecial:
+      write1(out, invokespecial);
+      break;
+
+    default: throw new AssertionError
+        ("todo: implement per http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-5.html#jvms-5.4.3.5");
+    }
+    
     write2(out, ConstantPool.addMethodRef
            (pool,
             Classes.makeString(implementation.method.class_.name, 0,
@@ -213,11 +225,9 @@ public class LambdaMetafactory {
     try {
       methodTable.add
         (new MethodData
-         (Modifier.STATIC,
+         (Modifier.PUBLIC | Modifier.STATIC,
           ConstantPool.addUtf8(pool, "make"),
-          ConstantPool.addUtf8(pool, Classes.makeString
+          ConstantPool.addUtf8(pool, invokedType.toMethodDescriptorString()),
-                               (invokedType.spec, 0,
-                                invokedType.spec.length - 1)),
           makeFactoryCode(pool, className, constructorSpec, invokedType)));
 
       methodTable.add
@@ -231,9 +241,7 @@ public class LambdaMetafactory {
         (new MethodData
          (Modifier.PUBLIC,
           ConstantPool.addUtf8(pool, invokedName),
-          ConstantPool.addUtf8(pool, Classes.makeString
+          ConstantPool.addUtf8(pool, methodType.toMethodDescriptorString()),
-                               (methodType.spec, 0,
-                                methodType.spec.length - 1)),
           makeInvocationCode(pool, className, constructorSpec, invokedType,
                              methodType, methodImplementation)));
     } catch (IOException e) {
@@ -262,10 +270,11 @@ public class LambdaMetafactory {
     try {
       return new CallSite
         (new MethodHandle
-         (invokedType.loader, avian.SystemClassLoader.getClass
+         (MethodHandle.REF_invokeStatic, invokedType.loader, Classes.toVMMethod
+          (avian.SystemClassLoader.getClass
            (avian.Classes.defineVMClass
             (invokedType.loader, classData, 0, classData.length))
-          .getMethod("make", invokedType.parameterArray()).vmMethod));
+           .getMethod("make", invokedType.parameterArray()))));
     } catch (NoSuchMethodException e) {
       AssertionError error = new AssertionError();
       error.initCause(e);

classpath/java/lang/invoke/MethodHandle.java

@@ -1,17 +1,34 @@
 package java.lang.invoke;
 
+import avian.Classes;
+
 public class MethodHandle {
+  static final int REF_invokeStatic = 6;
+  static final int REF_invokeSpecial = 7;
+  
+  final int kind;
   private final ClassLoader loader;
   final avian.VMMethod method;
   private volatile MethodType type;
   
-  MethodHandle(ClassLoader loader, avian.VMMethod method) {
+  MethodHandle(int kind, ClassLoader loader, avian.VMMethod method) {
+    this.kind = kind;
     this.loader = loader;
     this.method = method;
   }
 
   public String toString() {
-    return new java.lang.reflect.Method(method).toString();
+    StringBuilder sb = new StringBuilder();
+    if (method.class_ != null) {
+      sb.append(Classes.makeString(method.class_.name, 0,
+                                   method.class_.name.length - 1));
+      sb.append(".");
+    }
+    sb.append(Classes.makeString(method.name, 0,
+                                 method.name.length - 1));
+    sb.append(Classes.makeString(method.spec, 0,
+                                 method.spec.length - 1));
+    return sb.toString();
   }  
 
   public MethodType type() {

classpath/java/lang/invoke/MethodType.java

@@ -2,12 +2,18 @@ package java.lang.invoke;
 
 import static avian.Assembler.*;
 
+import avian.Assembler;
 import avian.Classes;
+import avian.VMClass;
 
 import java.util.List;
 import java.util.ArrayList;
 
 public final class MethodType implements java.io.Serializable {
+  private static final char[] Primitives = new char[] {
+    'V', 'Z', 'B', 'C', 'S', 'I', 'F', 'J', 'D'
+  };
+  
   final ClassLoader loader;
   final byte[] spec;
   private volatile List<Parameter> parameters;
@@ -19,6 +25,77 @@ public final class MethodType implements java.io.Serializable {
     this.spec = spec;
   }
 
+  public String toMethodDescriptorString() {
+    return Classes.makeString(spec, 0, spec.length - 1);
+  }
+  
+  private static String spec(Class c) {
+    if (c.isPrimitive()) {
+      VMClass vmc = Classes.toVMClass(c);
+      for (char p: Primitives) {
+        if (vmc == Classes.primitiveClass(p)) {
+          return String.valueOf(p);
+        }
+      }
+      throw new AssertionError();
+    } else if (c.isArray()) {
+      return "[" + spec(c.getComponentType());
+    } else {
+      return "L" + c.getName().replace('.', '/') + ";";
+    }
+  }
+
+  private MethodType(Class rtype,
+                     Class ... ptypes)
+  {
+    loader = rtype.getClassLoader();
+    
+    StringBuilder sb = new StringBuilder();
+    sb.append('(');
+    parameters = new ArrayList(ptypes.length);
+    int position = 0;
+    for (int i = 0; i < ptypes.length; ++i) {
+      String spec = spec(ptypes[i]);
+      sb.append(spec);
+
+      Type type = type(spec);
+      
+      parameters.add(new Parameter(i,
+                                   position,
+                                   spec,
+                                   ptypes[i],
+                                   type.load));
+
+      position += type.size;
+    }
+    sb.append(')');
+
+    footprint = position;
+
+    String spec = spec(rtype);
+    sb.append(spec);
+
+    result = new Result(spec, rtype, type(spec).return_);
+
+    this.spec = sb.toString().getBytes();
+  }
+  
+  public static MethodType methodType(Class rtype,
+                                      Class ptype0,
+                                      Class ... ptypes)
+  {
+    Class[] array = new Class[ptypes.length + 1];
+    array[0] = ptype0;
+    System.arraycopy(ptypes, 0, array, 1, ptypes.length);
+    return methodType(rtype, array);
+  }
+
+  public static MethodType methodType(Class rtype,
+                                      Class ... ptypes)
+  {
+    return new MethodType(rtype, ptypes);
+  }
+
   public String toString() {
     return Classes.makeString(spec, 0, spec.length - 1);
   }
@@ -53,21 +130,14 @@ public final class MethodType implements java.io.Serializable {
       int index = 0;
       int position = 0;
       for (i = 1; spec[i] != ')'; ++i) {
+        int start = i;
         switch (spec[i]) {
         case 'L': {
-          int start = i;
           ++ i;
           while (spec[i] != ';') ++ i;
-          
-          list.add(new Parameter
-                   (index,
-                    position,
-                    Classes.makeString(spec, start, (i - start) + 1),
-                    aload));
         } break;
 
         case '[': {
-          int start = i;
           ++ i;
           while (spec[i] == '[') ++ i;
         
@@ -80,12 +150,6 @@ public final class MethodType implements java.io.Serializable {
           default:
             break;
           }
-          
-          list.add(new Parameter
-                   (index,
-                    position,
-                    Classes.makeString(spec, start, (i - start) + 1),
-                    aload));
         } break;
 
         case 'Z':
@@ -93,107 +157,38 @@ public final class MethodType implements java.io.Serializable {
         case 'S':
         case 'C':
         case 'I':
-          list.add(new Parameter
-                   (index,
-                    position,
-                    Classes.makeString(spec, i, 1),
-                    iload));
-          break;
-
         case 'F':
-          list.add(new Parameter
-                   (index,
-                    position,
-                    Classes.makeString(spec, i, 1),
-                    fload));
-          break;
-
         case 'J':
-          list.add(new Parameter
-                   (index,
-                    position,
-                    Classes.makeString(spec, i, 1),
-                    lload));
-
-          ++ position;
-          break;
-
         case 'D':
-          list.add(new Parameter
-                   (index,
-                    position,
-                    Classes.makeString(spec, i, 1),
-                    dload));
-
-          ++ position;
           break;
 
         default: throw new AssertionError();
         }
 
+        String paramSpec = Classes.makeString(spec, start, (i - start) + 1);
+        Type type = type(paramSpec);
+        
+        list.add(new Parameter
+                 (index,
+                  position,
+                  paramSpec,
+                  Classes.forCanonicalName(loader, paramSpec),
+                  type.load));
+
         ++ index;
-        ++ position;
+        position += type.size;
       }
 
       footprint = position;
 
       ++ i;
 
-      switch (spec[i]) {
+      String paramSpec = Classes.makeString(spec, i, spec.length - i - 1);
-      case 'L': {
+      Type type = type(paramSpec);
-        int start = i;
-        ++ i;
-        while (spec[i] != ';') ++ i;
       
-        result = new Result
+      result = new Result(paramSpec,
-          (Classes.makeString(spec, start, (i - start) + 1), areturn);
+                          Classes.forCanonicalName(loader, paramSpec),
-      } break;
+                          type.return_);
-
-      case '[': {
-        int start = i;
-        ++ i;
-        while (spec[i] == '[') ++ i;
-        
-        switch (spec[i]) {
-        case 'L':
-          ++ i;
-          while (spec[i] != ';') ++ i;
-          break;
-
-        default:
-          break;
-        }
-          
-        result = new Result(Classes.makeString(spec, start, (i - start) + 1),
-                            areturn);
-      } break;
-
-      case 'V':
-        result = new Result(Classes.makeString(spec, i, 1), return_);
-        break;
-
-      case 'Z':
-      case 'B':
-      case 'S':
-      case 'C':
-      case 'I':
-        result = new Result(Classes.makeString(spec, i, 1), ireturn);
-        break;
-
-      case 'F':
-        result = new Result(Classes.makeString(spec, i, 1), freturn);        
-        break;
-        
-      case 'J':
-        result = new Result(Classes.makeString(spec, i, 1), lreturn);
-        break;
-        
-      case 'D':
-        result = new Result(Classes.makeString(spec, i, 1), dreturn);
-        break;
-        
-      default: throw new AssertionError();
-      }
       
       parameters = list;
     }
@@ -207,7 +202,55 @@ public final class MethodType implements java.io.Serializable {
     return result;
   }
 
-  public class Parameter {
+  private static Type type(String spec) {
+    switch (spec.charAt(0)) {
+    case 'L':
+    case '[':
+      return Type.ObjectType;
+
+    case 'Z':
+    case 'B':
+    case 'S':
+    case 'C':
+    case 'I':
+      return Type.IntegerType;
+
+    case 'F':
+      return Type.FloatType;
+
+    case 'J':
+      return Type.LongType;
+
+    case 'D':
+      return Type.DoubleType;
+
+    case 'V':
+      return Type.VoidType;
+
+    default: throw new AssertionError();        
+    }    
+  }
+
+  private static enum Type {
+    ObjectType(aload, areturn, 1),
+    IntegerType(iload, ireturn, 1),
+    FloatType(fload, freturn, 1),
+    LongType(lload, lreturn, 1),
+    DoubleType(dload, dreturn, 1),
+    VoidType(-1, Assembler.return_, -1);
+    
+    public final int load;
+    public final int return_;
+    public final int size;
+
+    private Type(int load, int return_, int size) {
+      this.load = load;
+      this.return_ = return_;
+      this.size = size;
+    }
+  }
+  
+  public static class Parameter {
     private final int index;
     private final int position;
     private final String spec;
@@ -217,12 +260,13 @@ public final class MethodType implements java.io.Serializable {
     private Parameter(int index,
                       int position,
                       String spec,
+                      Class type,
                       int load)
     {
       this.index = index;
       this.position = position;
       this.spec = spec;
-      this.type = Classes.forCanonicalName(loader, spec);
+      this.type = type;
       this.load = load;
     }
 
@@ -243,14 +287,14 @@ public final class MethodType implements java.io.Serializable {
     }
   }
 
-  public class Result {
+  public static class Result {
     private final String spec;
     private final Class type;
     private final int return_;
 
-    public Result(String spec, int return_) {
+    public Result(String spec, Class type, int return_) {
       this.spec = spec;
-      this.type = Classes.forCanonicalName(loader, spec);
+      this.type = type;
       this.return_ = return_;
     }
 

classpath/java/lang/reflect/Method.java

@@ -59,18 +59,6 @@ public class Method<T> extends AccessibleObject implements Member {
     return getSpec(vmMethod);
   }
   
-  public String toString() {
-    StringBuilder sb = new StringBuilder();
-    if (vmMethod.class_ != null) {
-      sb.append(Classes.makeString(vmMethod.class_.name, 0,
-                                   vmMethod.class_.name.length - 1));
-      sb.append(".");
-    }
-    sb.append(getName());
-    sb.append(getSpec());
-    return sb.toString();
-  }
-  
   public static String getSpec(VMMethod vmMethod) {
     return Classes.makeString(vmMethod.spec, 0, vmMethod.spec.length - 1);
   }

makefile

@@ -1473,7 +1473,12 @@ ifneq ($(classpath),avian)
 		$(classpath-src)/avian/VMField.java \
 		$(classpath-src)/avian/VMMethod.java \
 		$(classpath-src)/avian/avianvmresource/Handler.java \
-		$(classpath-src)/avian/file/Handler.java
+		$(classpath-src)/avian/file/Handler.java \
+		$(classpath-src)/java/lang/invoke/MethodHandle.java \
+		$(classpath-src)/java/lang/invoke/MethodHandles.java \
+		$(classpath-src)/java/lang/invoke/MethodType.java \
+		$(classpath-src)/java/lang/invoke/LambdaMetafactory.java \
+		$(classpath-src)/java/lang/invoke/CallSite.java
 
 	ifeq ($(openjdk),)
 		classpath-sources := $(classpath-sources) \

src/avian/constants.h

@@ -263,6 +263,16 @@ const unsigned ACC_INTERFACE = 1 << 9;
 const unsigned ACC_ABSTRACT = 1 << 10;
 const unsigned ACC_STRICT = 1 << 11;
 
+const unsigned REF_getField = 1;
+const unsigned REF_getStatic = 2;
+const unsigned REF_putField = 3;
+const unsigned REF_putStatic = 4;
+const unsigned REF_invokeVirtual = 5;
+const unsigned REF_invokeStatic = 6;
+const unsigned REF_invokeSpecial = 7;
+const unsigned REF_newInvokeSpecial = 8;
+const unsigned REF_invokeInterface = 9;
+
 const int AVIAN_JNI_COMMIT = 1;
 const int AVIAN_JNI_ABORT = 2;
 

src/builtin.cpp

@@ -113,6 +113,13 @@ extern "C" AVIAN_EXPORT int64_t JNICALL
       cast<GcJclass>(t, reinterpret_cast<object>(arguments[0]))->vmClass());
 }
 
+extern "C" AVIAN_EXPORT int64_t JNICALL
+    Avian_avian_Classes_toVMMethod(Thread* t, object, uintptr_t* arguments)
+{
+  return reinterpret_cast<intptr_t>(t->m->classpath->getVMMethod(
+      t, cast<GcJmethod>(t, reinterpret_cast<object>(arguments[0]))));
+}
+
 extern "C" AVIAN_EXPORT void JNICALL
     Avian_avian_Classes_initialize(Thread* t, object, uintptr_t* arguments)
 {

src/classpath-openjdk.cpp

@@ -484,6 +484,7 @@ class MyClasspath : public Classpath {
       }
 
       oarray = charArray;
+      offset = 0;
     } else {
       expect(t, objectClass(t, oarray) == type(t, GcCharArray::Type));
     }

src/compile.cpp

@@ -7351,6 +7351,12 @@ GcCallSite* resolveDynamic(MyThread* t, GcInvocation* invocation)
 
         array->setBodyElement(t, i + argument, type);
       } else if (strncmp(p, methodHandle, strlen(methodHandle)) == 0) {
+        GcReference* reference = cast<GcReference>(
+            t,
+            singletonObject(
+                t, invocation->pool(), bootstrapArray->body()[i + 1]));
+        int kind = reference->kind();
+
         GcMethod* method = cast<GcMethod>(t,
                                           resolve(t,
                                                   c->loader(),
@@ -7359,7 +7365,8 @@ GcCallSite* resolveDynamic(MyThread* t, GcInvocation* invocation)
                                                   findMethodInClass,
                                                   GcNoSuchMethodError::Type));
 
-        GcMethodHandle* handle = makeMethodHandle(t, c->loader(), method, 0);
+        GcMethodHandle* handle
+            = makeMethodHandle(t, kind, c->loader(), method, 0);
 
         array->setBodyElement(t, i + argument, handle);
       } else {
@@ -7396,9 +7403,10 @@ GcCallSite* resolveDynamic(MyThread* t, GcInvocation* invocation)
     ++i;
   }
 
-  GcMethodHandle* handle = (bootstrap->flags() & ACC_STATIC)
+  GcMethodHandle* handle
+      = (bootstrap->flags() & ACC_STATIC)
             ? 0
-                               : makeMethodHandle(t, c->loader(), bootstrap, 0);
+            : makeMethodHandle(t, REF_invokeSpecial, c->loader(), bootstrap, 0);
 
   return cast<GcCallSite>(
       t, t->m->processor->invokeArray(t, bootstrap, handle, array));

test/InvokeDynamic.java

@@ -1,4 +1,10 @@
 public class InvokeDynamic {
+  private final int foo;
+
+  private InvokeDynamic(int foo) {
+    this.foo = foo;
+  }
+  
   private interface Operation {
     int operate(int a, int b);
   }
@@ -10,6 +16,14 @@ public class InvokeDynamic {
   public static void main(String[] args) {
     int c = 4;
     Operation op = (a, b) -> a + b - c;
-    expect(op.operate(2, 3) == 1);
+    expect(op.operate(2, 3) == (2 + 3) - 4);
+
+    new InvokeDynamic(3).test();
+  }
+
+  private void test() {
+    int c = 2;
+    Operation op = (a, b) -> ((a + b) * c) - foo;
+    expect(op.operate(2, 3) == ((2 + 3) * 2) - foo);
   }
 }