# javax.tools

***

**1. Creating a Basic Java Class:**

```java
// Create a simple Java class.
import javax.tools.*;
class ExampleClass {
    private String name;
    public ExampleClass(String name) {
        this.name = name;
    }
    public String getName() {
        return name;
    }
}
```

**2. Compiling a Java Class:**

```java
// Compile the Java class.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
JavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java"));
task.call();
```

**3. Compiling a Java Package:**

```java
// Create a package-info.java file.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
JavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("src/main/java/example/package-info.java"));
task.call();
```

**4. Compiling a Java Source String:**

```java
// Compile a Java source string.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
String source = "public class ExampleClass { public static void main(String[] args) { System.out.println(\"Hello, Java!\"); } }";
JavaFileObject sourceFile = new StringJavaFileObject("ExampleClass", source);
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList(sourceFile));
task.call();
```

**5. Compiling a Java File with Arguments:**

```java
// Compile a Java file with arguments.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-cp", "lib/example.jar"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**6. Compiling a Java File with Output:**

```java
// Compile a Java file with output.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
File outputDirectory = new File("out");
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-d", outputDirectory.getAbsolutePath()), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**7. Compiling a Java File with Options:**

```java
// Compile a Java file with options.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-verbose"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**8. Compiling a Java File with Warnings:**

```java
// Compile a Java file with warnings.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-Werror"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**9. Compiling a Java File with Suppressed Warnings:**

```java
// Compile a Java file with suppressed warnings.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-Xlint:-unchecked"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**10. Compiling a Java File with Classpath:**

```java
// Compile a Java file with classpath.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-cp", "lib/example.jar"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**11. Compiling a Java File with Dependencies:**

```java
// Compile a Java file with dependencies.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-d", "lib"), null, Arrays.asList("ExampleClass.java", "ExampleDependency.java"));
task.call();
```

**12. Compiling a Java File with Generated Sources:**

```java
// Compile a Java file with generated sources.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java", new InMemoryJavaFileObject("ExampleGenerated", "public class ExampleGenerated {}")));
task.call();
```

**13. Compiling a Java File with Annotation Processors:**

```java
// Compile a Java file with annotation processors.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java"), Arrays.asList(new ExampleAnnotationProcessor()));
task.call();
```

**14. Compiling a Java File with Class Loader:**

```java
// Compile a Java file with class loader.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java"));
task.call();
Class<?> exampleClass = ClassLoader.getSystemClassLoader().loadClass("ExampleClass");
```

**15. Compiling a Java File with Dynamic Compilation:**

```java
// Compile a Java file with dynamic compilation.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList(new StringJavaFileObject("ExampleClass", "public class ExampleClass { public static void main(String[] args) { System.out.println(\"Hello, Java!\"); } }")));
task.call();
```

**16. Compiling a Java File with Source Versions:**

```java
// Compile a Java file with source versions.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-source", "17"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**17. Compiling a Java File with Target Versions:**

```java
// Compile a Java file with target versions.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-target", "17"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**18. Compiling a Java File with Language Levels:**

```java
// Compile a Java file with language levels.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-source", "17", "-target", "17"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**19. Compiling a Java File with Preserve Order:**

```java
// Compile a Java file with preserve order.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-preserveOrder"), null, Arrays.asList("ExampleClass.java", "ExampleDependency.java"));
task.call();
```

**20. Compiling a Java File with Incremental Compilation:**

```java
// Compile a Java file with incremental compilation.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-incremental", "-verbose"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**21. Compiling a Java File with Full Compilation:**

```java
// Compile a Java file with full compilation.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-full", "-verbose"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**22. Compiling a Java File with Source and Target Compatibility:**

```java
// Compile a Java file with source and target compatibility.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-source", "17", "-target", "17", "-sourcepath", "src/main/java"), null, Arrays.asList("src/main/java/example/ExampleClass.java"));
task.call();
```

**23. Compiling a Java File with Classpath and Sourcepath:**

```java
// Compile a Java file with classpath and sourcepath.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-cp", "lib/example.jar", "-sourcepath", "src/main/java"), null, Arrays.asList("src/main/java/example/ExampleClass.java"));
task.call();
```

**24. Compiling a Java File with Plugins:**

```java
// Compile a Java file with plugins.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-Xplugin:lombok"), null, Arrays.asList("src/main/java/example/ExampleClass.java"));
task.call();
```

**25. Compiling a Java File with Debug Information:**

```java
// Compile a Java file with debug information.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-g"), null, Arrays.asList("src/main/java/example/ExampleClass.java"));
task.call();
```

**26. Compiling a Java File with UTF-8 Character Encoding:**

```java
// Compile a Java file with UTF-8 character encoding.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-encoding", "UTF-8"), null, Arrays.asList("src/main/java/example/ExampleClass.java"));
task.call();
```

**27. Compiling a Java File with Extended Error Reporting:**

```java
// Compile a Java file with extended error reporting.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-Xlint:-options"), null, Arrays.asList("src/main/java/example/ExampleClass.java"));
task.call();
```

**28. Compiling a Java File with Custom Diagnostic Handler:**

```java
// Compile a Java file with custom diagnostic handler.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, new CustomDiagnosticHandler(), null, null, Arrays.asList("src/main/java/example/ExampleClass.java"));
task.call();
```

**29. Compiling a Java File with Class Query:**

```java
// Compile a Java file with class query.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java"));
task.call();
ClassQuery query = compiler.getQueryFromClassFileManager(fileManager, StandardLocation.CLASS_PATH, null, "ExampleClass");
```

**30. Compiling a Java File with Options File:**

```java
// Compile a Java file with options file.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java", "@options.txt"));
task.call();
```

**31. Compiling a Java File with Processor:**

```java
// Compile a Java file with processor.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java"), new ExampleProcessor());
task.call();
```

**32. Compiling a Java File with Release Version:**

```java
// Compile a Java file with release version.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-release", "17"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**33. Compiling a Java File with Preview Features:**

```java
// Compile a Java file with preview features.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-preview"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**34. Compiling a Java File with Record Preview:**

```java
// Compile a Java file with record preview.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-preview", "-enable-preview"), null, Arrays.asList("ExampleRecord.java"));
task.call();
```

**35. Compiling a Java File with Lint:**

```java
// Compile a Java file with lint.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("-Xlint:deprecation", "-Xlint:unchecked"), null, Arrays.asList("ExampleClass.java"));
task.call();
```

**36. Compiling a Java File with Experimental Features:**

```java
// Compile a Java file with experimental features.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, Arrays.asList("--enable-preview", "--enable-preview-features=record-syntax"), null, Arrays.asList("ExampleRecord.java"));
task.call();
```

**37. Compiling a Java File with Java Decompiler:**

```java
// Compile a Java file with Java decompiler.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
JavaFileObject classFile = fileManager.getJavaFileForInput(StandardLocation.CLASS_PATH, "ExampleClass", JavaFileObject.Kind.CLASS);
JavaSourceFile sourceFile = (JavaSourceFile)compiler.getJavaFileFromClass(classFile);
System.out.println(sourceFile.getCharContent(false).toString());
```

**38. Compiling a Java File with ResourceBundle:**

```java
// Compile a Java file with resource bundle.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java"), Locale.ENGLISH);
task.call();
```

**39. Compiling a Java File with Resource:**

```java
// Compile a Java file with resource.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java", "resources/example.properties"));
task.call();
```

**40. Compiling a Java File with Unicode:**

```java
// Compile a Java file with Unicode.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java", "resources/example_unicode.properties"));
task.call();
```

**41. Compiling a Java File with JSP:**

```java
// Compile a Java file with JSP.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java", "resources/example.jsp"));
task.call();
```

**42. Compiling a Java File with Schema:**

```java
// Compile a Java file with schema.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java", "resources/example.xsd"));
task.call();
```

**43. Compiling a Java File with WSDL:**

```java
// Compile a Java file with WSDL.
import javax.tools.*;
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = new StandardJavaFileManager(compiler.getDiagnosticListener());
CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList("ExampleClass.java", "resources/example.wsdl"));
task.call();
```

**44. Compiling a Java File with Annotation Processing:**