diff --git a/CSharpTranslator/antlr3/src/cs2j/CSharp/JavaMaker.g b/CSharpTranslator/antlr3/src/cs2j/CSharp/JavaMaker.g
index 02c553d..5a261c6 100644
--- a/CSharpTranslator/antlr3/src/cs2j/CSharp/JavaMaker.g
+++ b/CSharpTranslator/antlr3/src/cs2j/CSharp/JavaMaker.g
@@ -622,7 +622,11 @@ conditional_or_expression:
 	conditional_and_expression  ('||'^   conditional_and_expression)* ;
 
 null_coalescing_expression:
-	conditional_or_expression   ('??'^   conditional_or_expression)* ;
+	(e1=conditional_or_expression -> $e1)  (qq='??'   e2=conditional_or_expression -> ^(COND_EXPR[$qq.token, "?:"]
+                                                                                          ^(NOT_EQUAL[$qq.token, "!="] { dupTree($null_coalescing_expression.tree) } NULL[$qq.Token, "null"])
+                                                                                          { dupTree($null_coalescing_expression.tree) }
+                                                                                          { dupTree($e2.tree) })
+                                           )* ;
 conditional_expression:
      (ne=null_coalescing_expression  -> $ne) (q='?'   te=expression   ':'   ee=expression ->  ^(COND_EXPR[$q.token, "?:"] $conditional_expression $te $ee))? ;
 //	(null_coalescing_expression   '?'   expression   ':') => e1=null_coalescing_expression   q='?'   e2=expression   ':'   e3=expression -> ^(COND_EXPR[$q.token, "?:"] $e1 $e2 $e3)
@@ -1072,9 +1076,9 @@ interface_property_declaration [CommonTree atts, CommonTree mods, CommonTree typ
 	i=identifier   '{'   iads=interface_accessor_declarations[atts, mods, type, $i.text]   '}' -> $iads ;
 interface_method_declaration [CommonTree atts, CommonTree mods, CommonTree type]:
 	identifier   generic_argument_list?
-	    '('   formal_parameter_list?   ')'   type_parameter_constraints_clauses?   ';' 
+	    '('   formal_parameter_list?   ')'   type_parameter_constraints_clauses?   magicThrowable ';' 
        -> ^(METHOD { dupTree($atts) } { dupTree($mods) } { dupTree($type) } 
-            identifier type_parameter_constraints_clauses? generic_argument_list? formal_parameter_list?);
+            identifier type_parameter_constraints_clauses? generic_argument_list? formal_parameter_list? magicThrowable);
 interface_event_declaration [CommonTree atts, CommonTree mods]:
 	//attributes?   'new'?   
 	'event'   type   identifier   ';' ; 
@@ -1449,16 +1453,18 @@ magicCatchVar:
 magicPropGetter[CommonTree atts, CommonTree localatts, CommonTree mods, CommonTree localmods, CommonTree type, IToken getTok, CommonTree body, String propName, bool mkBody, String varName]
 @init {
     CommonTree realBody = body;
+    CommonTree exceptionList = null;
 }: 
-    ( { mkBody }? => b=magicGetterBody[getTok,varName] { realBody = $b.tree; }| )
-    -> ^(METHOD[$type.token, "METHOD"] { dupTree(mods) } { dupTree(type)} IDENTIFIER[getTok, "get"+propName] { dupTree(realBody) } ) 
+    ( { mkBody }? => b=magicGetterBody[getTok,varName] { realBody = $b.tree; } | e=magicException { exceptionList = $e.tree; })
+    -> ^(METHOD[$type.token, "METHOD"] { dupTree(mods) } { dupTree(type)} IDENTIFIER[getTok, "get"+propName] { dupTree(realBody) } { exceptionList }) 
     ;
 magicPropSetter[CommonTree atts, CommonTree localatts, CommonTree mods, CommonTree localmods, CommonTree type, IToken setTok, CommonTree body, String propName, bool mkBody, String varName]
 @init {
     CommonTree realBody = body;
+    CommonTree exceptionList = null;
 }: 
-    ( { mkBody }? => b=magicSetterBody[setTok,varName] { realBody = $b.tree; }| )
-    -> ^(METHOD[$type.token, "METHOD"] { dupTree(mods) } ^(TYPE[setTok, "TYPE"] IDENTIFIER[setTok, "void"] ) IDENTIFIER[setTok, "set"+propName] ^(PARAMS[setTok, "PARAMS"] { dupTree(type)} IDENTIFIER[setTok, "value"]) { dupTree(realBody) } ) 
+    ( { mkBody }? => b=magicSetterBody[setTok,varName] { realBody = $b.tree; }| e=magicException { exceptionList = $e.tree; } )
+    -> ^(METHOD[$type.token, "METHOD"] { dupTree(mods) } ^(TYPE[setTok, "TYPE"] IDENTIFIER[setTok, "void"] ) IDENTIFIER[setTok, "set"+propName] ^(PARAMS[setTok, "PARAMS"] { dupTree(type)} IDENTIFIER[setTok, "value"]) { dupTree(realBody) } { exceptionList } ) 
     ;
 
 magicSemi:
diff --git a/CSharpTranslator/antlr3/src/cs2j/CSharp/JavaPrettyPrint.g b/CSharpTranslator/antlr3/src/cs2j/CSharp/JavaPrettyPrint.g
index 195df4d..393f171 100644
--- a/CSharpTranslator/antlr3/src/cs2j/CSharp/JavaPrettyPrint.g
+++ b/CSharpTranslator/antlr3/src/cs2j/CSharp/JavaPrettyPrint.g
@@ -257,7 +257,7 @@ class_member_declaration returns [List<String> preComments]:
     | ^(EVENT attributes? modifiers? { $preComments = CollectedComments; } event_declaration)
     | ^(METHOD attributes? modifiers? type member_name type_parameter_constraints_clauses? type_parameter_list[$type_parameter_constraints_clauses.tpConstraints]? formal_parameter_list?
             { $preComments = CollectedComments; } method_body exception*)
-      -> method(modifiers={$modifiers.st}, type={$type.st}, name={ $member_name.st }, typeparams = { $type_parameter_list.st }, params={ $formal_parameter_list.st }, bodyIsSemi = { $method_body.isSemi }, body={ $method_body.st })
+      -> method(modifiers={$modifiers.st}, type={$type.st}, name={ $member_name.st }, typeparams = { $type_parameter_list.st }, params={ $formal_parameter_list.st }, exceptions = { $exception.st }, bodyIsSemi = { $method_body.isSemi }, body={ $method_body.st })
 //    | ^(METHOD attributes? modifiers? type method_declaration)     -> method(modifiers={$modifiers.st}, type={$type.st}, method={$method_declaration.st}) 
     | ^(INTERFACE attributes? modifiers? interface_declaration[$modifiers.st]) -> { $interface_declaration.st }
     | ^(CLASS attributes? modifiers? class_declaration[$modifiers.st]) -> { $class_declaration.st }
@@ -1048,32 +1048,12 @@ interface_member_declaration_aux:
 
 interface_member_declaration returns [List<String> preComments]:
     ^(EVENT attributes? modifiers? event_declaration)
-    | ^(METHOD attributes? modifiers? type identifier type_parameter_constraints_clauses? type_parameter_list[$type_parameter_constraints_clauses.tpConstraints]? formal_parameter_list?)
+    | ^(METHOD attributes? modifiers? type identifier type_parameter_constraints_clauses? type_parameter_list[$type_parameter_constraints_clauses.tpConstraints]? formal_parameter_list? exception*)
          { $preComments = CollectedComments; }
-      -> method(modifiers={$modifiers.st}, type={$type.st}, name={ $identifier.st }, typeparams = { $type_parameter_list.st }, params={ $formal_parameter_list.st }, bodyIsSemi = { true })
+      -> method(modifiers={$modifiers.st}, type={$type.st}, name={ $identifier.st }, typeparams = { $type_parameter_list.st }, params={ $formal_parameter_list.st }, exceptions= { $exception.st }, bodyIsSemi = { true })
     | ^(INDEXER attributes? modifiers? type type_name? { $preComments = CollectedComments; } indexer_declaration)
 		;
 
-interface_method_declaration:
-	identifier   generic_argument_list?
-	    '('   formal_parameter_list?   ')'   type_parameter_constraints_clauses?   ';' ;
-interface_event_declaration: 
-	//attributes?   'new'?   
-	'event'   type   identifier   ';' ; 
-interface_indexer_declaration: 
-	// attributes?    'new'?    type   
-	'this'   '['   formal_parameter_list   ']'   '{'   interface_accessor_declarations   '}' ;
-interface_accessor_declarations:
-	attributes?   
-		(interface_get_accessor_declaration   attributes?   interface_set_accessor_declaration?
-		| interface_set_accessor_declaration   attributes?   interface_get_accessor_declaration?) ;
-interface_get_accessor_declaration:
-	'get'   ';' ;		// no body / modifiers
-interface_set_accessor_declaration:
-	'set'   ';' ;		// no body / modifiers
-method_modifiers:
-	modifier+ ;
-	
 ///////////////////////////////////////////////////////
 // struct_declaration:
 // 	'struct'   type_or_generic   struct_interfaces?   type_parameter_constraints_clauses?   struct_body   ';'? ;
diff --git a/CSharpTranslator/antlr3/src/cs2j/CSharp/NetMaker.g b/CSharpTranslator/antlr3/src/cs2j/CSharp/NetMaker.g
index 4fdebe0..663ecfa 100644
--- a/CSharpTranslator/antlr3/src/cs2j/CSharp/NetMaker.g
+++ b/CSharpTranslator/antlr3/src/cs2j/CSharp/NetMaker.g
@@ -719,28 +719,9 @@ interface_member_declarations:
 	interface_member_declaration+ ;
 interface_member_declaration:
     ^(EVENT attributes? modifiers? event_declaration)
-    | ^(METHOD attributes? modifiers? type identifier type_parameter_constraints_clauses? type_parameter_list? formal_parameter_list?)
+    | ^(METHOD attributes? modifiers? type identifier type_parameter_constraints_clauses? type_parameter_list? formal_parameter_list? exception*)
     | ^(INDEXER attributes? modifiers? type type_name? indexer_declaration)
 		;
-interface_method_declaration:
-	identifier   generic_argument_list?
-	    '('   formal_parameter_list?   ')'   type_parameter_constraints_clauses?   ';' ;
-interface_event_declaration: 
-	//attributes?   'new'?   
-	'event'   type   identifier   ';' ; 
-interface_indexer_declaration: 
-	// attributes?    'new'?    type   
-	'this'   '['   formal_parameter_list   ']'   '{'   interface_accessor_declarations   '}' ;
-interface_accessor_declarations:
-	attributes?   
-		(interface_get_accessor_declaration   attributes?   interface_set_accessor_declaration?
-		| interface_set_accessor_declaration   attributes?   interface_get_accessor_declaration?) ;
-interface_get_accessor_declaration:
-	'get'   ';' ;		// no body / modifiers
-interface_set_accessor_declaration:
-	'set'   ';' ;		// no body / modifiers
-method_modifiers:
-	modifier+ ;
 	
 ///////////////////////////////////////////////////////
 // struct_declaration: