JavaCompiler - set the compiled class output folder

Question

I'm using Eclipse and therefore my class files are stored in "bin" in the project folder. How can I set the JavaCompiler to output compiled classes into this "bin" folder?

My code:

File fRun = new File("FileToCompile");
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null);
Iterable<? extends JavaFileObject> compUnits =  fileManager.getJavaFileObjects(fRun);
Boolean compRes = compiler.getTask(null, fileManager, null, null, null, compUnits).call();          

if(compRes == true){
    System.out.println("Compilation has succeeded");
    ClassLoader cl = Thread.currentThread().getContextClassLoader();
    Class<?> compiledClass = cl.loadClass("data.testcases.TestA");
    cRun = compiledClass;
}else{
    System.out.println("Compilation error");
    fileManager.close();

Need to pass your compiler options in compiler.getTask. The option is -d — Chetter Hummin
– Chetter Hummin, Commented Mar 12, 2012 at 11:00
Shouldn't this be the answer instead of a comment, @AmitBhargava? — nwinkler
– nwinkler, Commented Mar 12, 2012 at 11:02
Heh. Thought it wasn't detailed enough, so I let it be a comment. I'll add an answer too. — Chetter Hummin
– Chetter Hummin, Commented Mar 12, 2012 at 11:04

Chetter Hummin · Accepted Answer · 2012-03-12 11:04:23Z

13

Need to pass your compiler options in compiler.getTask. The option is -d

answered Mar 12, 2012 at 11:04

Chetter Hummin

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2 Comments

Arian Over a year ago

and where do I add compiler options?

Chetter Hummin Over a year ago

This would be the fourth parameter. Now, I haven't tried this out but the following code fragment should help : final Iterable<String> options = Arrays.asList( new String[] { "-d", <path>} ); where <path> is the absolute path for your bin directory

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