java

Question

我正在尝试运行用于构建 RMI here 的示例代码，同时如果我将策略文件修改为此，我可以将服务器设置为运行:

grant {
    permission java.net.SocketPermission "*", "listen,accept,resolve";
};

客户端returns这个异常：

HelloClient exception: error during JRMP connection establishment; nested exception is: 
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: 
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
at sun.rmi.server.UnicastRef.newCall(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at Client.Client.main(Client.java:25)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.ssl.Alerts.getSSLException(Unknown Source)
at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
at sun.security.ssl.Handshaker.processLoop(Unknown Source)
at sun.security.ssl.Handshaker.process_record(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.writeRecord(Unknown Source)
at sun.security.ssl.AppOutputStream.write(Unknown Source)
at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
at java.io.BufferedOutputStream.flush(Unknown Source)
at java.io.DataOutputStream.flush(Unknown Source)
... 5 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
at sun.security.validator.Validator.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
... 16 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
at java.security.cert.CertPathBuilder.build(Unknown Source)
... 22 more

但我什至找不到所有这些东西的定义位置，所以我什至可以尝试解决它。谁能帮帮我？

编辑：

现在它给我这个错误。我认为这与信任锚有关，但我不明白如何定义它们。

 HelloClient exception: error during JRMP connection establishment; nested exception is: 
     javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
 java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: 
     javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
at sun.rmi.server.UnicastRef.newCall(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at Client.Client.main(Client.java:25)
Caused by: javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.ssl.Alerts.getSSLException(Unknown Source)
at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
at sun.security.ssl.SSLSocketImpl.handleException(Unknown Source)
at sun.security.ssl.SSLSocketImpl.handleException(Unknown Source)
at sun.security.ssl.AppOutputStream.write(Unknown Source)
at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
at java.io.BufferedOutputStream.flush(Unknown Source)
at java.io.DataOutputStream.flush(Unknown Source)
... 5 more
 Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.validator.PKIXValidator.<init>(Unknown Source)
at sun.security.validator.Validator.getInstance(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.getValidator(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
at sun.security.ssl.Handshaker.processLoop(Unknown Source)
at sun.security.ssl.Handshaker.process_record(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.writeRecord(Unknown Source)
... 9 more
Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.security.cert.PKIXParameters.setTrustAnchors(Unknown Source)
at java.security.cert.PKIXParameters.<init>(Unknown Source)
at java.security.cert.PKIXBuilderParameters.<init>(Unknown Source)
... 22 more

Answer 1

检查 README.txt 文件部分 "NOTES FOR RUNNING WITH SUN's JDK"，您似乎运行 Java 使用默认的 trustore。

样本证书

此信任库文件与股票非常相似 JDK cacerts 文件，因为它包含信任来自多家供应商的证书。它还包含来自 "Duke" 和 "localhost" 的可信证书以上。

此密钥库的密码与 JDK cacert的初始密码：changeit

请参阅您的提供商的文档以了解如何配置受信任证书的位置文件。

NOTES FOR RUNNING WITH SUN's JDK:

Users of the Sun JDK can specify the location of the truststore by using one of the following methods (and are described more fully in the Sun JDK JSSE Reference Guide):

System properties:

    java -Djavax.net.ssl.trustStore=samplecacerts \
    -Djavax.net.ssl.trustStorePassword=changeit
    Application

Install the file into:

    <java-home>/lib/security/jssecacerts

Install the file into:

    <java-home>/lib/security/cacerts

If you choose 2) or 3), be sure to replace this file with a production cacerts file before deployment.

java - RMI 中的 SSL

java - SSL in RMI

ssl

rmi

sslhandshakeexception

NOTES FOR RUNNING WITH SUN's JDK: