As a follow-on from this post : https://pdn.pega.com/community/product-support/question/how-create-prpc-page-pxresults-type-page-java-step

I'm trying the following Java Step Code in an Activity on PRPC721 :

try {
 javax.net.ssl.TrustManagerFactory trustManagerFactory = javax.net.ssl.TrustManagerFactory.getInstance(javax.net.ssl.TrustManagerFactory.getDefaultAlgorithm() );
 trustManagerFactory.init((java.security.KeyStore)null);

for (javax.net.ssl.TrustManager trustManager : trustManagerFactory.getTrustManagers() ) {
 javax.net.ssl.X509TrustManager x509TrustManager = (javax.net.ssl.X509TrustManager)trustManager;
 int i = 1;
 for (java.security.cert.X509Certificate cert : x509TrustManager.getAcceptedIssuers()) {
  tools.getParameterPage().putParamValue( "cert", cert );
 oLog.infoForced( i + ":"+cert.getIssuerX500Principal());
 i++;
 }
 }

}
 catch(Exception e) { throw new PRRuntimeException(e); }

But this will not compile; I get:

This record has 1 error(s) in 1 place(s) .
—
Java at step: 1 line: 9
The method putParamValue(String, String) in the type ParameterPage is not applicable for the arguments (String, X509Certificate)
—
Compile failed.

The putParamValue ("PublicAPI") has several method signatures, I'm trying to use this one:

putParamValue
void putParamValue(java.lang.String aName,
                 java.lang.Object aValue)
Assigns the specified value to the named parameter, on the current ParameterPage.
Parameters:
aName - parameter to receive the specified value
aValue - value to be assigned to the named parameter.

But it seems (I think?) that the compiler is trying to use this one instead ?

void putParamValue(java.lang.String aName,
                 java.lang.String aValue)
Assigns the specified value to the named parameter, on the current ParameterPage.
Parameters:
aName - parameter to receive the specified value
aValue - value to be assigned to the named parameter. An empty String will be used if the value is null.

Is there something I'm doing wrong here ?

(I tried casting my 'X509Certificate' to 'java.lang.Object' into a temporary variable and called with that - but that doesn't seem to help either).