Three minor doc bugs in JavaCompiler.java code example :

The doc says :
<DiagnosticCollector_example_code >
    Used to collect diagnostics in a list, for example:

           Iterable<? extends JavaFileObject> compilationUnits = ...;
           JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
           DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
           StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnostics, null, null);
           compiler.getTask(null, fileManager, diagnostics, null, null, compilationUnits).call();

           for (Diagnostic diagnostic : diagnostics.getDiagnostics())
               System.out.format("Error on line %d in %d%n",
                                 diagnostic.getLineNumber()
                                 diagnostic.getSource().toUri());

           fileManager.close();

</DiagnosticCollector_example_code >

1)for (Diagnostic diagnostic : diagnostics.getDiagnostics()) should be
*for (Diagnostic<? extends JavaFileObject> diagnostic : diagnostics.getDiagnostics()) *
since
a) toUri() method is directly calling on dignostic.getSource() method
           ***diagnostic.getSource().toUri()) ***
b) diagnostics is already of type JavaFileObject

2)System.out.format has both '%d's, it should be one %d and other %s since first one points to number but second one pointes to a String.
System.out.format("Error on line %d in **%s**%n",

3) ',' is missing between diagnostic.getLineNumber and diagnostic.getSource