importPackage not working even with load "Mozilla compatibility script"

FULL PRODUCT VERSION :


A DESCRIPTION OF THE PROBLEM :
Global variable not accessible when I load "Mozilla compatibility script" and call the "ScriptEngineManager.setBindings" method.

"engine.eval("var sample = new SampleMain2();")" throws an ScriptException.
 If I comment out "other.eval("load(\"nashorn:...)" or "manager.setBindings(ot...)", the exception are not thrown.

code:
public class SampleMain {
    public static void main(String[] args) throws ScriptException {
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine other = manager.getEngineByName("nashorn");
        other.eval("load(\"nashorn:mozilla_compat.js\");");
        manager.setBindings(other.getBindings(ScriptContext.ENGINE_SCOPE));

        ScriptEngine engine = manager.getEngineByName("nashorn");
        engine.eval("load(\"nashorn:mozilla_compat.js\");");
        engine.eval("importPackage(Packages.sample2);");
        engine.eval("var sample = new SampleMain2();");
    }
}

public class SampleMain2 { }

exception:
Exception in thread "main" javax.script.ScriptException: ReferenceError: "SampleMain2" is not defined in <eval> at line number 1
at jdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:467)
at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:451)
at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:403)
at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:399)
at jdk.nashorn.api.scripting.NashornScriptEngine.eval(NashornScriptEngine.java:155)
at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:264)

REGRESSION. Last worked in version 7u80


ERROR MESSAGES/STACK TRACES THAT OCCUR :
Exception in thread "main" javax.script.ScriptException: ReferenceError: "SampleMain2" is not defined in <eval> at line number 1
at jdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:467)
at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:451)
at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:403)
at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:399)
at jdk.nashorn.api.scripting.NashornScriptEngine.eval(NashornScriptEngine.java:155)
at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:264)
at jp.co.hoge.SampleMain.main(SampleMain.java:27)
Caused by: <eval>:1 ReferenceError: "SampleMain2" is not defined
at jdk.nashorn.internal.runtime.ECMAErrors.error(ECMAErrors.java:57)
at jdk.nashorn.internal.runtime.ECMAErrors.referenceError(ECMAErrors.java:319)
at jdk.nashorn.internal.runtime.ECMAErrors.referenceError(ECMAErrors.java:291)
at jdk.nashorn.internal.objects.Global.__noSuchProperty__(Global.java:1432)
at jdk.nashorn.internal.scripts.Script$7$\^eval\_.:program(<eval>:1)
at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:640)
at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:228)
at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393)
at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:446)
... 5 more

REPRODUCIBILITY :
This bug can be reproduced always.