Compiling a Java Class in memory with `lombok` annotations and Java JDK 8

by

Thanks to Holger, I successfully solved the problem.

The issue was caused by the absence of tools.jar in the class path.
This is due to the fact that Eclipse by default recognises the Java environment as a JRE instead of a JDK.

On top of that, Java JDK may – or may not, depending on which version you have – have the tools.jar file.

If you have Java 7 or 8, you should have such library in $JAVA_HOME/lib/tools.jar.

If you have Java 6, the file is not present but the same functionality is provided by $JAVA_HOME/Classes/classes.jar.

The compiler is a feature added with Java 6, so if you want to use it and you have an older version of Java, you should update your environment first.

Now, there are several ways to include tools.jar (or classes.jar) into your project’s class path; since I use gradle, I decided to introduce it as a dependency, as you can see in the following snippet of code:

dependencies {
    compile files("${System.properties['java.home']}/../lib/tools.jar")
    compile 'org.projectlombok:lombok:1.14.4'
    testCompile 'junit:junit:4.11'
}

Hope this little explanation might help other people facing a similar problem!

Cheers!

More Related Contents:

  1. Learning to write a compiler [closed]
  2. What is an application binary interface (ABI)?
  3. Writing a compiler in its own language
  4. Bootstrapping still requires outside support
  5. How does an interpreter/compiler work
  6. How was the first compiler written?
  7. Learning Resources on Parsers, Interpreters, and Compilers [closed]
  8. Correct suffix for Fortran 2003 source file – Intel Fortran compiler
  9. Caused by: java.lang.ClassNotFoundException: com.sun.tools.javac.code.TypeTags when using lombok
  10. What’s the difference between parse trees and abstract syntax trees (ASTs)?
  11. ios5 ARC what is the compiler flag to exclude a file from ARC?
  12. How does compiling circular dependencies work?
  13. Suggestions for writing a programming language? [closed]
  14. How does the Go1 compiler work?
  15. How do I compile and run a C program in Sublime Text 2?
  16. Are Fortran control characters (carriage control) still implemented in compilers?
  17. Maximum Method Name Length
  18. Bootstrapping a compiler: why?
  19. Unreachable code: error or warning? [closed]
  20. Is there a way to compare lambdas?
  21. Remove duplicates from a list of objects based on property in Java 8 [duplicate]
  22. Difference between year-of-era and week-based-year?
  23. How to get Method Parameter names in Java 8 using reflection?
  24. How many GCC optimization levels are there?
  25. Adding scripting functionality to .NET applications
  26. What is the difference between year and year-of-era?
  27. How to right align a button in Java FX toolbar
  28. What issues can I expect compiling C code with a C++ compiler?
  29. Using method reference instead of multi argument lambda
  30. Is there any “PostConstruct” feature of lombok?

Leave a Comment