Hi,

I am new to JBPM and drools. I am trying to install jbpm and drools in my laptop, but i am getting a SunCertPathBuilderException exception which is blocking my installation. Request you to kindly suggest on how to overcome this exception.

Exception Trace:

BUILD FAILED

C:\softwares\jbpm-installer\build.xml:293: javax.net.ssl.SSLHandshakeException:

sun.security.validator.ValidatorException: PKIX path building failed: sun.securi

ty.provider.certpath.SunCertPathBuilderException: unable to find valid certifica

tion path to requested target

        at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)

        at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)

        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)

        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)

        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.

java:1509)

        at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.jav

a:216)

        at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)

        at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)

        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)

        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.

java:1375)

        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403

)

        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387

)

        at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:

559)

        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect

(AbstractDelegateHttpsURLConnection.java:185)

        at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLCon

nectionImpl.java:153)

        at org.apache.tools.ant.taskdefs.Get$GetThread.openConnection(Get.java:7

28)

        at org.apache.tools.ant.taskdefs.Get$GetThread.get(Get.java:641)

        at org.apache.tools.ant.taskdefs.Get$GetThread.run(Get.java:631)

Caused by: sun.security.validator.ValidatorException: PKIX path building failed:

sun.security.provider.certpath.SunCertPathBuilderException: unable to find vali

d certification path to requested target

        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)

        at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.jav

a:292)

        at sun.security.validator.Validator.validate(Validator.java:260)

        at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.j

ava:324)

        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerIm

pl.java:229)

        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustMan

agerImpl.java:124)

        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.

java:1491)

        ... 13 more

Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to

find valid certification path to requested target

        at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBu

ilder.java:141)

        at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCert

PathBuilder.java:126)

        at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)

        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)

        ... 19 more

Total time: 58 seconds