Null Pointer Exception while using Java Compiler API

Question

MyClass.java:

package test;
public class MyClass {
    public void myMethod(){
        System.out.println(\"My Method Called\");
    }
}

Li

Answer 1

I was having the same problem

JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

was returning null. Even after using

System.setProperty("java.home", "C:\\Program Files\\Java\\jdk1.8.0_31");

was returning null.

However the issue was simple as this code is in the Tools.jar found in Java\jdk1.8.0_31\lib if you are using JDK. what i did was to go to project-->properties-->Java Build Path-->order and export--> and moved tool.jar to the top of other JRE and projects. This helped me get rid of null hope this help you as well.Happy compiling...:-)