JWSアプリからHTTPSサイトにアクセスできない

jnlp and web start

java web startを利用したJavaアプリケーションから、Axis2での接続時に不正な証明書を表わす例外が発生。

オレオレ証明書がらみか？

Eclipse上から接続する際にも同様の例外が発生していたが、%JAVA_HOME%/jre/lib/security/cacertsに接続先の証明書を登録することにより接続できるようになった。JWSクライアントから接続するには、また別の方法が必要なのか？

【環境】
Java1.5.0_17(JAVA_HOMEの設定)
JWSはJava6の環境で動作している
開発はEclipse3.3.2


以下は発生した例外

org.apache.axis2.AxisFault: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
at org.apache.axis2.transport.http.AxisRequestEntity.writeRequest(AxisRequestEntity.java:98)
at org.apache.commons.httpclient.methods.EntityEnclosingMethod.writeRequestBody(EntityEnclosingMethod.java:495)
at org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMethodBase.java:1973)
at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:993)
at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:397)
at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
at org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520)
at org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191)
at org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
at org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:528)
at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:508)
at org.apache.axis2.rpc.client.RPCServiceClient.invokeBlocking(RPCServiceClient.java:101)