Method doCompile

src/main/java/org/apache/groovy/util/JavaShell.java:194–224

(String className, String src, Iterable<String> options)

    }

    private void doCompile(String className, String src, Iterable<String> options) throws IOException {
        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
        if (compiler == null) {
            throw new IllegalStateException("JavaShell requires a JDK at runtime; "
                    + "ToolProvider.getSystemJavaCompiler() returned null (running on a JRE?).");
        }
        try (BytesJavaFileManager bjfm = new BytesJavaFileManager(compiler.getStandardFileManager(null, locale, charset))) {
            StringBuilderWriter out = new StringBuilderWriter();
            JavaCompiler.CompilationTask task =
                    compiler.getTask(
                            out,
                            bjfm,
                            null,
                            options,
                            Collections.emptyList(),
                            Collections.singletonList(
                                    new MemJavaFileObject(className, src)
                            )
                    );

            task.call();

            if (bjfm.isEmpty()) {
                throw new JavaShellCompilationException(out.toString());
            }

            final Map<String, byte[]> classMap = bjfm.getClassMap();

            jscl.setClassMap(classMap);
        }
    }

    /**
     * Compile {@code src} and write each resulting class file beneath {@code outputDir}