可以使用以下代码示例来检查Apache Olingo Odata v4客户端是否符合FIPS标准：

1. 首先要导入相关的库：

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

2. 然后创建一个自定义TrustManager来验证证书：

X509TrustManager customTrustManager = new X509TrustManager() {
    @Override
    public void checkClientTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
        // 不需要实现
    }

    @Override
    public void checkServerTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {
        for (X509Certificate cert : x509Certificates) {
            cert.checkValidity(); // 检查证书是否过期
            // 检查证书是否符合FIPS标准
            if (cert.getSigAlgName().contains("SHA384") || cert.getSigAlgName().contains("SHA512")) {
                throw new CertificateException("The certificate signature algorithm is not FIPS-compliant.");
            }
        }
    }

    @Override
    public X509Certificate[] getAcceptedIssuers() {
        return new X509Certificate[0];
    }
};

3. 接下来，创建一个TrustManagerFactory来使用我们的自定义TrustManager：

TrustManager[] trustManagers = new TrustManager[]{customTrustManager};
String trustStoreType = KeyStore.getDefaultType(); // 默认密钥库类型
KeyStore trustStore = KeyStore.getInstance(trustStoreType);
trustStore.load(null, null); // 空密钥库
TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(trustStore); // 使用我们的空密钥库

4. 最后，将我们的TrustManagerFactory设置到SSLContext中：

SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, trustManagers, null);
return sslContext;

这样，在建立与服务端的安全连接时，就会使用我们自己的TrustManager，从而能够检查证书是否符合FIPS标准。