TrustedScriptEngineTest.java 文件源码

@Test
/**
 * Test repeated evals with --loader-per-compile=false
 * We used to get "class redefinition error".
 */
public void noLoaderPerCompilerTest() {
    final ScriptEngineManager sm = new ScriptEngineManager();
    for (final ScriptEngineFactory fac : sm.getEngineFactories()) {
        if (fac instanceof NashornScriptEngineFactory) {
            final NashornScriptEngineFactory nfac = (NashornScriptEngineFactory)fac;
            final String[] options = new String[] { "--loader-per-compile=false" };
            final ScriptEngine e = nfac.getScriptEngine(options);
            try {
                e.eval("2 + 3");
                e.eval("4 + 4");
            } catch (final ScriptException se) {
                se.printStackTrace();
                fail(se.getMessage());
            }
            return;
        }
    }
    fail("Cannot find nashorn factory!");
}