Java Secure Socket Extension (JSSE): multiple key entries in keystore when initializi

Is it possible to have multiple key entries in the keystore used by the
KeyManagerFactory when using the reference implementation?
(SunJSSE included in J2SE 1.4.2)

I'm using keystore type "jks".
I call the init method of my KeyManagerFactory instance with the
appropriate KeyStore instance and the password of a specific key
in that keystore as parameters. This only works when all key entries
are protected by the same password. Otherwise I get the following
exception:

java.security.UnrecoverableKeyException: Cannot recover key
at sun.security.provider.KeyProtector.recover(KeyProtector.java:301)
at sun.security.provider.JavaKeyStore.engineGetKey(JavaKeyStore.java:103)
at java.security.KeyStore.getKey(KeyStore.java:289)
at com.sun.net.ssl.internal.ssl.X509KeyManagerImpl.<init>(DashoA6275)
at com.sun.net.ssl.internal.ssl.KeyManagerFactoryImpl.engineInit(DashoA6275)
at javax.net.ssl.KeyManagerFactory.init(DashoA6275)
at client.SSLClient.main(SSLClient.java:24)

Is there a way to somehow select a specific key entry in the keystore
when initializing the KeyManagerFactory instance or to have arbitrary
key entries in your keystore.