小编ido*_*lax的帖子

我实现了一个通过Web服务访问的自定义loginModule,并检查JPA访问的数据库前面的用户名和密码.我在jboss 7.1上运行它并且它工作正常,但在将它移动到Wildfly(并添加我认为正确的配置)后,我得到了一个源自wildfly类内部的NullPointerException.有任何想法吗？

18:48:21,417 ERROR [io.undertow.request] (default task-3) UT005023: Exception handling request to /jass.ws/jaas/verifier/authenticateWithBasicUsernamePasswordAuth: java.lang.RuntimeException: java.lang.NullPointerException
    at org.wildfly.extension.undertow.security.JAASIdentityManagerImpl.verifyCredential(JAASIdentityManagerImpl.java:126)
    at org.wildfly.extension.undertow.security.JAASIdentityManagerImpl.verify(JAASIdentityManagerImpl.java:82)
    at io.undertow.security.impl.BasicAuthenticationMechanism.authenticate(BasicAuthenticationMechanism.java:110) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.transition(SecurityContextImpl.java:281) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.transition(SecurityContextImpl.java:298) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.access$100(SecurityContextImpl.java:268) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.impl.SecurityContextImpl.attemptAuthentication(SecurityContextImpl.java:131) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.impl.SecurityContextImpl.authTransition(SecurityContextImpl.java:106) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.impl.SecurityContextImpl.authenticate(SecurityContextImpl.java:99) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.handlers.AuthenticationCallHandler.handleRequest(AuthenticationCallHandler.java:50) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:51) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:61) [undertow-servlet-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:56) [undertow-servlet-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:240) [undertow-servlet-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:227) …

当为可空的可选抛出异常时，我收到编译错误，要求我捕获或声明异常为抛出，但 NPE 是不需要捕获的运行时异常。所以基本上 orElseThrow 行为与在 java 8 之前抛出异常不同。这是一个特性还是一个错误？有什么想法吗？

这不编译：

protected String sendTemplate() {
    String template = getTemplate();
    return Optional.ofNullable(template).orElseThrow(() -> {
        throw new NullPointerException("message");
    });

}

这样做：

protected String sendTemplate() {
    String template = getTemplate();
    if (template == null){
        throw new NullPointerException("message");
    }
    else return template;
}