docs: public final void additiveExpression() throws RecognitionException {
  		int additiveExpression_StartIndex = input.index();
  
  		try {
  			if ( state.backtracking>0 && alreadyParsedRule(input, 122) ) { return; }
  
  			// src/main/resources/org/drools/compiler/semantics/java/parser/Java.g:1188:5: ( multiplicativeExpression ( ( '+' | '-' ) multiplicativeExpression )* )
  			// src/main/resources/org/drools/compiler/semantics/java/parser/Java.g:1188:9: multiplicativeExpression ( ( '+' | '-' ) multiplicativeExpression )*
  			{
  			pushFollow(FOLLOW_multiplicativeExpression_in_additiveExpression5410);
  			multiplicativeExpression();
  			state._fsp--;
  			if (state.failed) return;
  			// src/main/resources/org/drools/compiler/semantics/java/parser/Java.g:1188:34: ( ( '+' | '-' ) multiplicativeExpression )*
  			loop154:
  			while (true) {
  				int alt154=2;
  				int LA154_0 = input.LA(1);
  				if ( (LA154_0==40||LA154_0==44) ) {
  					alt154=1;
  				}
  
  				switch (alt154) {
  				case 1 :
  					// src/main/resources/org/drools/compiler/semantics/java/parser/Java.g:1188:36: ( '+' | '-' ) multiplicativeExpression
  					{
  					if ( input.LA(1)==40||input.LA(1)==44 ) {
  						input.consume();
  						state.errorRecovery=false;
  						state.failed=false;
  					}
  					else {
  						if (state.backtracking>0) {state.failed=true; return;}
  						MismatchedSetException mse = new MismatchedSetException(null,input);
  						throw mse;
  					}
  					pushFollow(FOLLOW_multiplicativeExpression_in_additiveExpression5422);
  					multiplicativeExpression();
  					state._fsp--;
  					if (state.failed) return;
  					}
  					break;
  
  				default :
  					break loop154;
  				}
  			}
  
  			}
  
  		}
  		catch (RecognitionException re) {
  			reportError(re);
  			recover(input,re);
  		}
  		finally {
  			// do for sure before leaving
  			if ( state.backtracking>0 ) { memoize(input, 122, additiveExpression_StartIndex); }
  
  		}
  	}