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Former Member

While running SUM SP14 to upgrade Bi system following error appears on 2nd screen in DSUGui after connecting to the GUI port

While running SUM SP14 to upgrade Bi system following error appears on 2nd screen in DSUGui after connecting to the GUI port:

Feb 29, 2016 5:35:38 AM [Error]: javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate_unknown

Feb 29, 2016 5:35:38 AM [Error]: javax.net.ssl.SSLHandshakeException: Received fatal alert: certificate_unknown

Feb 29, 2016 5:35:38 AM [Error]: Network input/output exception has occurred: Received fatal alert: certificate_unknown

Feb 29, 2016 5:35:38 AM [Error]: com.sap.sdt.engine.core.communication.ProxyException

From a previous thread it looks like it may be related to JVM version .. Java version is as follows

java version "1.4.2"

Java(TM) 2 Runtime Environment, Standard Edition (build 2.3)

IBM J9 VM (build 2.3, J2RE 1.4.2 IBM J9 2.3 AIX ppc64-64 j9ap64142-20090310 (JIT enabled)

J9VM - 20090309_31291_BHdSMr

JIT - 20090210_1447ifx1_r8

GC - 200902_24)

Need some suggestion if its really related to JVM and I need to go for any specific JVM version or any certificate related activity needs to be performed!

My system is SAP Netweaver 7.4 ABAP. No AS java is installed in this box.

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5 Answers

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    Former Member
    Mar 01, 2016 at 12:57 PM

    We have got a Solution.
    Apparently removing MD5 from java.security file
    in /SUM/jvm/jre/lib/security from the following parameter removes this
    error.

    jdk.certpath.disabledAlgoritms=MD2,MD5, RSA keySize < 1024
    jdk.tls.disabledAlgorithms=SSLv3, RC4, MD5withRSA, DH keySize < 768

    Those who are getting the same might find this useful.. We could resume SUM after removing MD5 from these parameters

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    Former Member
    Feb 29, 2016 at 11:34 AM

    Hallo,

    SUM comes with its own Java and I pretty sure the version you posted is the Java installed on your server and not the one which comes with SUM.

    SUM Java is located in SUM/jvm/jre/bin.

    Usually there is no need to set the JAVA_HOME to the SUM Java but you can still try, refer to note

    2099826 - Error occurs at "Verifying Certificates" step of SUM tool.


    Regards

    Thomas.

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    Former Member
    Feb 29, 2016 at 01:13 PM

    Found this in the log..

    com.sap.sdt.engine.core.communication.FactoryAlreadyRegisteredException: Factory for key 'com.sap.sdt.engine.core.communication.FactoryKey@d3a87346' is already registered

    anything makes sense?

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    Former Member
    Feb 29, 2016 at 02:21 PM

    Dear Mithun,

    You need to uninstall the java jdk 8 along with the update files.

    You have to install jdk 6 or jdk 8 with update 66 to resolve the issue.

    You have to install the jdk on the system where you are opening the SUM gui.

    Its a bug with SUM SP14.

    Also check the below thread

    SUM javax.net.ssl.SSLHandshakeException: Receiv... | SCN

    With Regards

    Ashutosh Chaturvedi

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    • Former Member

      I am opening DSUGui on the same system and using Hummingbird to fetch the GUI. I have already posted the Java version of the system..

      java version "1.4.2"

      Java(TM) 2 Runtime Environment, Standard Edition (build 2.3)

      IBM J9 VM (build 2.3, J2RE 1.4.2 IBM J9 2.3 AIX ppc64-64 j9ap64142-20090310 (JIT enabled)

      J9VM - 20090309_31291_BHdSMr

      JIT - 20090210_1447ifx1_r8

      GC - 200902_24)

      Problem is its IBM Java, I don't know which version it relates to for Sun or SAP JVM

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    Former Member
    Feb 29, 2016 at 02:24 PM

    Hallo,

    might be worth to use the latest SUM instead.

    Regards

    Thomas.

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    • Former Member Former Member

      Hallo,

      I had a look through my old documentation but couldn't find the keyword either.

      I hope you had better luck with other suggestions (e.g. MD5) in the meantime!!

      Regards

      Thomas