javac1.8 class not found

Question

I have installed two jdks - jdk 1.5 and jdk 1.8. I have following Ant build.xml config file :

Answer 1

I tried all of the other solutions, but none worked. I finally found an approach that worked for me in Eclipse:

• Right click on the ant task name, e.g. "compileCustomSrc" in the ant window.
• Choose Run As | External Tool Configurations
• Then on the JRE tab, choose Separate JRE: Java SE7 or whatever your java 7 is named, then hit Apply and then Run.

Your ant task will be executed, and will build correctly!