I hadnt used Eclipse on the affected Mac for a few weeks so Im not sure if it was broken by a Java update, an OSX.
Using this guide, Eclipse can be setup to program and download code onto Arduino microcontrollers in about 15 minutes by using the Arduino Eclipse Plugin. Accumulo,1,ActiveMQ,2,Adsense,1,API,37,ArrayList,17,Arrays,16,Bean Creation,3,Bean Scopes,1,BiConsumer,1,Blogger Tips,1,Books,1,C Programming,1,Collection,5,Collections,29,Collector,1,Command Line,1,Compile Errors,1,Configurations,7,Constants,1,Control Statements,8,Conversions,6,Core Java,93,Corona India,1,Create,2,CSS,1,Date,3,Date Time API,35,Dictionary,1,Difference,1,Download,1,Eclipse,2,Efficiently,1,Error,1,Errors,1,Exception,1,Exceptions,3,Fast,1,Files,14,Float,1,Font,1,Form,1,Freshers,1,Function,3,Functional Interface,2,Garbage Collector,1,Generics,4,Git,4,Grant,1,Grep,1,HashMap,1,HomeBrew,2,HTML,2,HttpClient,2,Immutable,1,Installation,1,Interview Questions,5,Iterate,2,Jackson API,3,Java,30,Java 10,1,Java 11,5,Java 12,5,Java 13,2,Java 14,2,Java 8,111,Java 8 Difference,2,Java 8 Stream Conversions,2,java 8 Stream Examples,3,Java 9,1,Java Conversions,11,Java Design Patterns,1,Java Files,1,Java Program,3,Java Programs,105,Java Spark,1,java.lang,5,java.util. The Xcode and Eclipse developers learn from each other, so if you ever decide to get into OS X or iOS development, having earned your wings in Eclipse will pay huge dividends later. A recent update broke the above solution. Arduino Eclipse Development Environment for Mac OS X This is a short guide on how to setup Eclipse for Mac OS X Lion (10.7) for use with Arduino in a relatively short amount of time.