[rules-users] java.lang.IllegalArgumentException: Could not parse knowledge.

Getting below error for each and every rule in Vote.drl . Using Drools 5 and eclipse 3.4. Trying this example http://www.developer.com/java/ent/article.php/10933_3821101_3 Rule Compilation error : [Rule name='VeryGoodValue – between 6-9'] com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (3:79) : Syntax error on tokens, delete these tokens com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (3:92) : The public type Rule_VeryGoodValue_ must be defined in its own file com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (3:127) : Syntax error, insert "}" to complete Block com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (4:134) : Syntax error on tokens, delete these tokens com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (6:202) : Syntax error on token "void", @ expected com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (6:234) : Syntax error on token "KnowledgeHelper", ( expected after this token com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (6:284) : Syntax error on token "m", delete this token com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (6:287) : Syntax error on token(s), misplaced construct(s) com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (6:309) : Syntax error, insert ")" to complete MethodInvocation com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (6:309) : Syntax error, insert ")" to complete SingleMemberAnnotation com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (6:309) : Syntax error, insert "enum Identifier" to complete EnumHeaderName com/examples/Rule_VeryGoodValue_–_between_6_9_0.java (6:309) : Syntax error, insert "EnumBody" to complete EnumDeclaration *Vote.drl* package com.examples import com.examples.drools.Vote; rule "WrongValue – less than 0" when m : Vote( average < 0.0, vote : vote ) then m.setAverage(0.0f); update( m ); end rule "WrongValue – bigger than 10" when m : Vote( average > 10.0, vote : vote ) then m.setAverage(10.0f); update( m ); end rule "BadValue – between 0-3" when m : Vote( average >= 0.0 && average <=3.0, vote : vote ) then m.setVote("Bad!"); System.out.println( m.getVote() ); end rule "GoodValue – between 3-6" when m : Vote( average >3.0 && average <=6.0, vote : vote ) then m.setVote("Good!"); System.out.println( m.getVote() ); end rule "VeryGoodValue – between 6-9" when m : Vote( average >6.0 && average <=9.0, vote : vote ) then m.setVote("Very Good!"); System.out.println( m.getVote() ); end rule "ExcellentValue – between 9-10" when m : Vote( average >9.0 && average <=10.0, vote : vote ) then m.setVote("Excellent!"); System.out.println( m.getVote() ); end * *