public void checkKeyStore()

in ch-commons-ssl/src/main/java/com/cloudhopper/commons/ssl/SslContextFactory.java [341:372]
27 lines of code
9 McCabe index (conditional complexity)

    public void checkKeyStore() {
        if (sslContext != null)
            return; //nothing to check if using preconfigured context
        
        if (keyStoreInputStream == null &&
	    sslConfig.getKeyStorePath() == null) {
            throw new IllegalStateException("SSL doesn't have a valid keystore");
        }
        // if the keystore has been configured but there is no
        // truststore configured, use the keystore as the truststore
        if (trustStoreInputStream == null && sslConfig.getTrustStorePath() == null) {
            trustStoreInputStream = keyStoreInputStream;
            sslConfig.setTrustStorePath(sslConfig.getKeyStorePath());
            sslConfig.setTrustStoreType(sslConfig.getKeyStoreType());
            sslConfig.setTrustStoreProvider(sslConfig.getKeyStoreProvider());
            sslConfig.setTrustStorePassword(sslConfig.getKeyStorePassword());
            sslConfig.setTrustManagerFactoryAlgorithm(sslConfig.getKeyManagerFactoryAlgorithm());
        }

        // It's the same stream we cannot read it twice, so read it once in memory
        if (keyStoreInputStream != null && keyStoreInputStream == trustStoreInputStream) {
            try {
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
		streamCopy(keyStoreInputStream, baos, null, false);
                keyStoreInputStream.close();
                keyStoreInputStream = new ByteArrayInputStream(baos.toByteArray());
                trustStoreInputStream = new ByteArrayInputStream(baos.toByteArray());
            } catch (Exception ex) {
                throw new IllegalStateException(ex);
            }
        }
    }