re PR libgcj/7060 (getMethod() doesn't search super interface)

2002-07-04  Tom Tromey  <tromey@redhat.com>
            Jeff Sturm  <jsturm@one-point.com>

	Fix for PR libgcj/7060:
	* java/lang/Class.h (_getMethod): Renamed from getMethod.
	* java/lang/natClass.cc (_getMethod): Renamed from getMethod.
	Recurse into superinterfaces.  Don't throw NoSuchMethodException.
	* java/lang/Class.java (getMethod): New Java implementation;
	complies with spec.
	(_getMethod): New native method.

Co-Authored-By: Jeff Sturm <jsturm@one-point.com>

From-SVN: r55266

4 files changed, 51 insertions, 5 deletions

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index 24696fd..d5f5fd8 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,14 @@
+2002-07-04  Tom Tromey  <tromey@redhat.com>
+            Jeff Sturm  <jsturm@one-point.com>
+
+	Fix for PR libgcj/7060:
+	* java/lang/Class.h (_getMethod): Renamed from getMethod.
+	* java/lang/natClass.cc (_getMethod): Renamed from getMethod.
+	Recurse into superinterfaces.  Don't throw NoSuchMethodException.
+	* java/lang/Class.java (getMethod): New Java implementation;
+	complies with spec.
+	(_getMethod): New native method.
+
 2002-07-02  Tom Tromey  <tromey@redhat.com>
             David Hovemeyer  <daveho@cs.umd.edu>
 
diff --git a/libjava/java/lang/Class.h b/libjava/java/lang/Class.h
index eb33c93..9eb1a5c 100644
--- a/libjava/java/lang/Class.h
+++ b/libjava/java/lang/Class.h
@@ -166,7 +166,7 @@ public:
 
   void getSignature (java::lang::StringBuffer *buffer);
   static jstring getSignature (JArray<jclass> *, jboolean is_constructor);
-  java::lang::reflect::Method *getMethod (jstring, JArray<jclass> *);
+  java::lang::reflect::Method *_getMethod (jstring, JArray<jclass> *);
   JArray<java::lang::reflect::Method *> *getMethods (void);
 
   inline jint getModifiers (void)
diff --git a/libjava/java/lang/Class.java b/libjava/java/lang/Class.java
index 7bd38de..12306da 100644
--- a/libjava/java/lang/Class.java
+++ b/libjava/java/lang/Class.java
@@ -121,8 +121,29 @@ public final class Class implements Serializable
   private static final native String getSignature (Class[] parameterTypes,
 						   boolean is_construtor);
 
-  public native Method getMethod (String methodName, Class[] parameterTypes)
-    throws NoSuchMethodException, SecurityException;
+  public native Method _getMethod (String methodName, Class[] parameterTypes);
+
+  public Method getMethod (String methodName, Class[] parameterTypes)
+    throws NoSuchMethodException, SecurityException
+  {
+    SecurityManager sm = System.getSecurityManager();
+    if (sm != null)
+      {
+	sm.checkMemberAccess(this, Member.PUBLIC);
+	Package p = getPackage();
+	if (p != null)
+	  sm.checkPackageAccess(p.getName());
+      }
+
+    if ("<init>".equals(methodName) || "<clinit>".equals(methodName))
+      throw new NoSuchMethodException(methodName);
+
+    Method m = _getMethod(methodName, parameterTypes);
+    if (m == null)
+      throw new NoSuchMethodException (methodName);
+    return m;
+  }
+
   private native int _getMethods (Method[] result, int offset);
   public native Method[] getMethods () throws SecurityException;
 
diff --git a/libjava/java/lang/natClass.cc b/libjava/java/lang/natClass.cc
index 5399090..43b79ad 100644
--- a/libjava/java/lang/natClass.cc
+++ b/libjava/java/lang/natClass.cc
@@ -485,7 +485,7 @@ java::lang::Class::getInterfaces (void)
 }
 
 java::lang::reflect::Method *
-java::lang::Class::getMethod (jstring name, JArray<jclass> *param_types)
+java::lang::Class::_getMethod (jstring name, JArray<jclass> *param_types)
 {
   jstring partial_sig = getSignature (param_types, false);
   jint p_len = partial_sig->length();
@@ -514,7 +514,21 @@ java::lang::Class::getMethod (jstring name, JArray<jclass> *param_types)
 	    }
 	}
     }
-  throw new java::lang::NoSuchMethodException;
+
+  // If we haven't found a match, and this class is an interface, then
+  // check all the superinterfaces.
+  if (isInterface())
+    {
+      for (int i = 0; i < interface_count; ++i)
+	{
+	  using namespace java::lang::reflect;
+	  Method *rmethod = interfaces[i]->_getMethod (name, param_types);
+	  if (rmethod != NULL)
+	    return rmethod;
+	}
+    }
+
+  return NULL;
 }
 
 // This is a very slow implementation, since it re-scans all the