engine.createTemplate("你好") 编译失败

[subchen]

public static void main(String[] args) {
    JetEngine engine = JetEngine.create();
    JetTemplate template = engine.createTemplate("你好");
    StringWriter writer = new StringWriter();
    template.render(new HashMap(), writer);
    System.out.println(writer.toString());
}

[main] INFO jetbrick.template.JetTemplate - Loading template source file: (unknown)
Exception in thread "main" jetbrick.template.compiler.CompileErrorException: Compilation failed.
C:\Users\guoqiche\AppData\Local\Temp\jetx\.java:6: <identifier> expected
   4: 
   5: @SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
   6: public final class  extends JetPage {
                        ^
1 error(s)

    at jetbrick.template.compiler.jdk.JdkCompiler.generateJavaClass(JdkCompiler.java:142)
    at jetbrick.template.compiler.jdk.JdkCompiler.compile(JdkCompiler.java:113)
    at jetbrick.template.JetTemplate.compileAndLoadClass(JetTemplate.java:116)
    at jetbrick.template.JetTemplate.<init>(JetTemplate.java:70)
    at jetbrick.template.JetEngine.createTemplate(JetEngine.java:111)
    at TestCase.main(TestCase.java:9)