docs: public final void interfaceDeclaration() throws RecognitionException {
  		int interfaceDeclaration_StartIndex = input.index();
  
  		try {
  			if ( state.backtracking>0 && alreadyParsedRule(input, 16) ) { return; }
  
  			// src/main/resources/org/drools/compiler/semantics/java/parser/Java.g:338:5: ( normalInterfaceDeclaration | annotationTypeDeclaration )
  			int alt27=2;
  			int LA27_0 = input.LA(1);
  			if ( (LA27_0==93) ) {
  				alt27=1;
  			}
  			else if ( (LA27_0==58) ) {
  				alt27=2;
  			}
  
  			else {
  				if (state.backtracking>0) {state.failed=true; return;}
  				NoViableAltException nvae =
  					new NoViableAltException("", 27, 0, input);
  				throw nvae;
  			}
  
  			switch (alt27) {
  				case 1 :
  					// src/main/resources/org/drools/compiler/semantics/java/parser/Java.g:338:7: normalInterfaceDeclaration
  					{
  					pushFollow(FOLLOW_normalInterfaceDeclaration_in_interfaceDeclaration543);
  					normalInterfaceDeclaration();
  					state._fsp--;
  					if (state.failed) return;
  					}
  					break;
  				case 2 :
  					// src/main/resources/org/drools/compiler/semantics/java/parser/Java.g:339:11: annotationTypeDeclaration
  					{
  					pushFollow(FOLLOW_annotationTypeDeclaration_in_interfaceDeclaration555);
  					annotationTypeDeclaration();
  					state._fsp--;
  					if (state.failed) return;
  					}
  					break;
  
  			}
  		}
  		catch (RecognitionException re) {
  			reportError(re);
  			recover(input,re);
  		}
  		finally {
  			// do for sure before leaving
  			if ( state.backtracking>0 ) { memoize(input, 16, interfaceDeclaration_StartIndex); }
  
  		}
  	}