編集：2014年10月31日これに対する修正は、Restlet 2.2とマスター（将来の2.3）ブランチの両方で利用可能になりました
Netbeans PlatformRestletクライアントアプリはJava1.6で正常に動作しますが、1.7.0_11を使用すると、セキュリティランタイムエラーが発生します。
これを防ぐ簡単な方法はありますか？
WARN org.restlet.log():241 - Unable to unmarshal the XML representation
javax.xml.bind.JAXBException: Unable to create customized SAX source
- with linked exception:
[javax.xml.parsers.ParserConfigurationException: FEATURE_SECURE_PROCESSING: Cannot set the feature to false when security manager is present.]
at org.restlet.ext.jaxb.internal.Unmarshaller.unmarshal(Unmarshaller.java:201)
at org.restlet.ext.jaxb.JaxbRepresentation.getObject(JaxbRepresentation.java:417)
at org.restlet.ext.jaxb.JaxbConverter.toObject(JaxbConverter.java:172)
at org.restlet.service.ConverterService.toObject(ConverterService.java:167)
at org.restlet.resource.Resource.toObject(Resource.java:828)
at org.restlet.engine.resource.ClientInvocationHandler.invoke(ClientInvocationHandler.java:240)
<SNIP>
Caused by: javax.xml.parsers.ParserConfigurationException: FEATURE_SECURE_PROCESSING: Cannot set the feature to false when security manager is present.
at com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl.setFeature(SAXParserFactoryImpl.java:122)
at org.restlet.ext.jaxb.internal.Unmarshaller.unmarshal(Unmarshaller.java:190)
... 23 more
どちらのJavaランタイムでも、私のSystem.getSecurityManager（）はorg.netbeans.TopSecurityManagerのインスタンスです。
編集1
JaxbConverter.javaSimon Lehmannからの回答で言及されているように、 Restlet ソースについてもう少し調査した後、
new JaxbRepresentation<T>(Representation source, Class<T> target).getObject();
それで ...
public JaxbRepresentation(Representation xmlRepresentation, Class<T> type) { ...}
それで ...
public JaxbRepresentation(Representation xmlRepresentation, String contextPath, ValidationEventHandler validationHandler, ClassLoader classLoader) {
super((xmlRepresentation == null) ? null : xmlRepresentation
.getMediaType());
this.classLoader = classLoader;
this.contextPath = contextPath;
this.object = null;
this.validationEventHandler = validationHandler;
this.xmlRepresentation = xmlRepresentation;
}
この特定のコンストラクターでは、this.secureProcessing常にfalseのままであるため、セキュリティマネージャーが存在する場合、後でXMLパーサーのJava7セキュア処理機能でエラーが発生します。
これがrestletのバグなのか、それとも何か間違ったことをしているのかわからないのですか？
編集2（シンプルなJava 7アプリとフルアプリの1つ）
私は1.7.0_11に小さなレストレットクライアントテストプログラムを作成しました。これはサーバーで問題なく動作します。フルクライアントアプリで、クラスパスに「悪い」ものがあると推測していますか？
小さなアプリと完全なアプリの両方で私は工場を印刷します、そしてそれは両方で同じです：
[exec] DocumentBuilderFactory implementation: com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl loaded from: Java Runtime
[exec] XPathFactory implementation: com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl loaded from: Java Runtime
[exec] TransformerFactory implementation: com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl loaded from: Java Runtime
[exec] SAXParserFactory implementation: com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl loaded from: Java Runtime
System.setProperty（ "jaxp.debug"、 "true"）;を介して追加のJAXPロギングをオンにします。それぞれで異なることを確認してください：
小さな作業アプリ
[junit] JAXP: find factoryId =javax.xml.datatype.DatatypeFactory
[junit] JAXP: loaded from fallback value: com.sun.org.apache.xerces.internal.jaxp.datatype.DatatypeFactoryImpl
[junit] JAXP: created new instance of class com.sun.org.apache.xerces.internal.jaxp.datatype.DatatypeFactoryImpl using ClassLoader: null
[junit] JAXP: find factoryId =javax.xml.datatype.DatatypeFactory
[junit] JAXP: loaded from fallback value: com.sun.org.apache.xerces.internal.jaxp.datatype.DatatypeFactoryImpl
[junit] JAXP: created new instance of class com.sun.org.apache.xerces.internal.jaxp.datatype.DatatypeFactoryImpl using ClassLoader: null
[junit] JAXP: using thread context class loader (sun.misc.Launcher$AppClassLoader@6c5bdfae) for search
[junit] JAXP: Looking up system property 'javax.xml.xpath.XPathFactory:http://java.sun.com/jaxp/xpath/dom'
[junit] JAXP: The property is undefined.
[junit] JAXP: found null in $java.home/jaxp.properties
[junit] JAXP: no META-INF/services/javax.xml.xpath.XPathFactory file was found
[junit] JAXP: attempting to use the platform default W3C DOM XPath lib
[junit] JAXP: createInstance(com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl)
[junit] JAXP: loaded com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl from jar:file:/Library/Java/JavaVirtualMachines/jdk1.7.0_11.jdk/Contents/Home/jre/lib/rt.jar!/com/sun/org/apache/xpath/internal/jaxp/XPathFactoryImpl.class
[junit] JAXP: factory 'com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl' was found for http://java.sun.com/jaxp/xpath/dom
[junit] JAXP: find factoryId =javax.xml.transform.TransformerFactory
[junit] JAXP: loaded from fallback value: com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl
[junit] JAXP: created new instance of class com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl using ClassLoader: null
完全なNetbeansアプリ（失敗）
[exec] JAXP: using thread context class loader (SystemClassLoader[420 modules]) for search
[exec] JAXP: Looking up system property 'javax.xml.xpath.XPathFactory:http://java.sun.com/jaxp/xpath/dom'
[exec] JAXP: The property is undefined.
[exec] JAXP: found null in $java.home/jaxp.properties
[exec] JAXP: no META-INF/services/javax.xml.xpath.XPathFactory file was found
[exec] JAXP: attempting to use the platform default W3C DOM XPath lib
[exec] JAXP: createInstance(com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl)
[exec] JAXP: loaded com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl from jar:file:/Library/Java/JavaVirtualMachines/jdk1.7.0_11.jdk/Contents/Home/jre/lib/rt.jar!/com/sun/org/apache/xpath/internal/jaxp/XPathFactoryImpl.class
[exec] JAXP: factory 'com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl' was found for http://java.sun.com/jaxp/xpath/dom
[exec] JAXP: find factoryId =javax.xml.transform.TransformerFactory
[exec] JAXP: found jar resource=META-INF/services/javax.xml.transform.TransformerFactory using ClassLoader: SystemClassLoader[420 modules]
[exec] JAXP: loaded from fallback value: com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl
[exec] JAXP: created new instance of class com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl using ClassLoader: null