jni.cc (_Jv_JNI_GetAnyFieldID): Handle unresolved fields.

	* jni.cc (_Jv_JNI_GetAnyFieldID): Handle unresolved fields.
	* java/lang/reflect/natField.cc (getType): Use _Jv_ResolveField
	unconditionally.
	* include/jvm.h (_Jv_ResolveField): Declare.
	* include/java-interp.h (_Jv_ResolveField): Don't declare.
	* resolve.cc (_Jv_ResolveField): No longer conditional on
	INTERPRETER.

From-SVN: r40785

libjava/ChangeLog

+2001-03-22  Tom Tromey  <tromey@redhat.com>
+
+	* jni.cc (_Jv_JNI_GetAnyFieldID): Handle unresolved fields.
+	* java/lang/reflect/natField.cc (getType): Use _Jv_ResolveField
+	unconditionally.
+	* include/jvm.h (_Jv_ResolveField): Declare.
+	* include/java-interp.h (_Jv_ResolveField): Don't declare.
+	* resolve.cc (_Jv_ResolveField): No longer conditional on
+	INTERPRETER.
+
 2001-03-23  Bryce McKinlay  <bryce@albatross.co.nz>
 
 	Fix for PR libgcj/1736. Thanks to Robert Boehne and Alexandre Oliva

libjava/include/java-interp.h

 // java-interp.h - Header file for the bytecode interpreter.  -*- c++ -*-
 
-/* Copyright (C) 1999, 2000  Free Software Foundation
+/* Copyright (C) 1999, 2000, 2001  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -40,7 +40,6 @@ bool _Jv_VerifyClassName (_Jv_Utf8Const *name);
 bool _Jv_VerifyIdentifier (_Jv_Utf8Const *);
 bool _Jv_ClassNameSamePackage (_Jv_Utf8Const *name1, _Jv_Utf8Const *name2);
 void _Jv_DefineClass (jclass, jbyteArray, jint, jint);
-void _Jv_ResolveField (_Jv_Field *, java::lang::ClassLoader*);
 
 void _Jv_InitField (jobject, jclass, int);
 void * _Jv_AllocMethodInvocation (jsize size);

libjava/include/jvm.h

 // jvm.h - Header file for private implementation information. -*- c++ -*-
 
-/* Copyright (C) 1998, 1999, 2000  Free Software Foundation
+/* Copyright (C) 1998, 1999, 2000, 2001  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -219,6 +219,7 @@ extern "C" void _Jv_CheckArrayStore (jobject array, jobject obj);
 extern "C" void _Jv_RegisterClass (jclass klass);
 extern "C" void _Jv_RegisterClasses (jclass *classes);
 extern void _Jv_UnregisterClass (_Jv_Utf8Const*, java::lang::ClassLoader*);
+extern void _Jv_ResolveField (_Jv_Field *, java::lang::ClassLoader*);
 
 extern jclass _Jv_FindClass (_Jv_Utf8Const *name,
 			     java::lang::ClassLoader *loader);

libjava/java/lang/natClass.cc

@@ -678,7 +678,7 @@ java::lang::Class::finalize (void)
 void
 java::lang::Class::initializeClass (void)
 {
-  // jshort-circuit to avoid needless locking.
+  // short-circuit to avoid needless locking.
   if (state == JV_STATE_DONE)
     return;
 
@@ -713,7 +713,9 @@ java::lang::Class::initializeClass (void)
     wait ();
 
   // Steps 3 &  4.
-  if (state == JV_STATE_DONE || state == JV_STATE_IN_PROGRESS || thread == self)
+  if (state == JV_STATE_DONE
+      || state == JV_STATE_IN_PROGRESS
+      || thread == self)
     {
       _Jv_MonitorExit (this);
       return;

libjava/java/lang/reflect/natField.cc

 // natField.cc - Implementation of java.lang.reflect.Field native methods.
 
-/* Copyright (C) 1998, 1999, 2000  Free Software Foundation
+/* Copyright (C) 1998, 1999, 2000, 2001  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -44,17 +44,8 @@ jclass
 java::lang::reflect::Field::getType ()
 {
   jfieldID fld = _Jv_FromReflectedField (this);
-  if (! fld->isResolved())
-    {
-      JvSynchronize sync (declaringClass);
-      if (! fld->isResolved())
-	{
-	  fld->type
-	    = _Jv_FindClassFromSignature(((Utf8Const*) (fld->type))->data,
-					 declaringClass->getClassLoader());
-	  fld->flags &= ~_Jv_FIELD_UNRESOLVED_FLAG;
-	}
-    }
+  JvSynchronize sync (declaringClass);
+  _Jv_ResolveField (fld, declaringClass->getClassLoader ());
   return fld->type;
 }
 

libjava/jni.cc

@@ -1068,8 +1068,13 @@ _Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
 
       // FIXME: what if field_class == NULL?
 
+      java::lang::ClassLoader *loader = clazz->getClassLoader ();
       while (clazz != NULL)
 	{
+	  // We acquire the class lock so that fields aren't resolved
+	  // while we are running.
+	  JvSynchronize sync (clazz);
+
 	  jint count = (is_static
 			? JvNumStaticFields (clazz)
 			: JvNumInstanceFields (clazz));
@@ -1078,12 +1083,11 @@ _Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
 			    : JvGetFirstInstanceField (clazz));
 	  for (jint i = 0; i < count; ++i)
 	    {
-	      // The field is resolved as a side effect of class
-	      // initialization.
-	      JvAssert (field->isResolved ());
-
 	      _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
 
+	      // The field might be resolved or it might not be.  It
+	      // is much simpler to always resolve it.
+	      _Jv_ResolveField (field, loader);
 	      if (_Jv_equalUtf8Consts (f_name, a_name)
 		  && field->getClass() == field_class)
 		return field;

libjava/resolve.cc

 // resolve.cc - Code for linking and resolving classes and pool entries.
 
-/* Copyright (C) 1999, 2000  Free Software Foundation
+/* Copyright (C) 1999, 2000, 2001  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -32,6 +32,17 @@ details.  */
 #include <java/lang/IncompatibleClassChangeError.h>
 #include <java/lang/reflect/Modifier.h>
 
+void
+_Jv_ResolveField (_Jv_Field *field, java::lang::ClassLoader *loader)
+{
+  if (! field->isResolved ())
+    {
+      _Jv_Utf8Const *sig = (_Jv_Utf8Const*)field->type;
+      field->type = _Jv_FindClassFromSignature (sig->data, loader);
+      field->flags &= ~_Jv_FIELD_UNRESOLVED_FLAG;
+    }
+}
+
 #ifdef INTERPRETER
 
 static void throw_internal_error (char *msg)
@@ -361,17 +372,6 @@ _Jv_SearchMethodInClass (jclass cls, jclass klass,
   return 0;
 }
 
-void
-_Jv_ResolveField (_Jv_Field *field, java::lang::ClassLoader *loader)
-{
-  if (! field->isResolved ())
-    {
-      _Jv_Utf8Const *sig = (_Jv_Utf8Const*)field->type;
-      field->type = _Jv_FindClassFromSignature (sig->data, loader);
-      field->flags &= ~_Jv_FIELD_UNRESOLVED_FLAG;
-    }
-}
-
 /** FIXME: this is a terribly inefficient algorithm!  It would improve
     things if compiled classes to know vtable offset, and _Jv_Method had
     a field for this.