DiagnosticDemo.java Source code

Introduction

Here is the source code for DiagnosticDemo.java

Source

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.tools.Diagnostic;
import javax.tools.DiagnosticCollector;
import javax.tools.JavaCompilerTool;
import javax.tools.JavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.ToolProvider;
import javax.tools.JavaCompilerTool.CompilationTask;

public class DiagnosticDemo {

    public static void main(String[] args) {
        String sourceFile = "c:/HelloWorld.Java";
        JavaCompilerTool compiler = ToolProvider.getSystemJavaCompilerTool();
        DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
        StandardJavaFileManager fileManager =

                compiler.getStandardFileManager(diagnostics);

        List<File> sourceFileList = new ArrayList<File>();
        sourceFileList.add(new File(sourceFile));
        Iterable<? extends JavaFileObject> compilationUnits = fileManager
                .getJavaFileObjectsFromFiles(sourceFileList);
        CompilationTask task = compiler.getTask(null, fileManager, null, null, null, compilationUnits);
        task.run();
        try {
            fileManager.close();
        } catch (IOException e) {
        }
        List<Diagnostic<? extends JavaFileObject>> diagnosticList = diagnostics.getDiagnostics();
        for (Diagnostic<? extends JavaFileObject> diagnostic : diagnosticList) {
            System.out.println("Position:" + diagnostic.getStartPosition());
        }
    }
}