I’m sure we’ve all been there, I’ve got a JSF (Java) project on Eclipse that built fine yesterday, I call it quits for the night, turn off my computer and come back to it the next day only to find missing JAR errors, some of which are due to actual missing classes, others I can clearly find by navigating my build path. What’s up with that? Is windows scheming against me and re-indexing files or something while I’m away?
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So this might be IDE dependent on Eclipse Java EE Juno but on restart it created a copy of my src folder as a library which caused some Hibernate – duplicate mapping errors