JRE 8u101 installation fails in SUSE 11 SP4 with error: /usr/sbin/alternatives: No such file or directory

FULL PRODUCT VERSION :
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Linux fadheela 3.0.101-80-default #1 SMP Fri Jul 15 14:30:41 UTC 2016 (eb2ba81) x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
1) Installing java give an error

A- Installing give us error:

fadheela:~ # rpm -ivh jre-8u101-linux-x64.rpm
Preparing... ########################################### [100%]
   1:jre1.8.0_101 ########################################### [100%]
Unpacking JAR files...
        plugin.jar...
        javaws.jar...
        deploy.jar...
        rt.jar...
        jsse.jar...
        charsets.jar...
        localedata.jar...
/var/tmp/rpm-tmp.40318: line 638: /usr/sbin/alternatives: No such file or directory
error: %post(jre1.8.0_101-1.8.0_101-fcs.x86_64) scriptlet failed, exit status 127

B)

fadheela:~ # java -version
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)


C) un-installing give us error

A)

fadheela:~ # rpm -e jre1.8.0_101-1.8.0_101-fcs
/var/tmp/rpm-tmp.23896: line 583: /usr/sbin/alternatives: No such file or directory
error: %postun(jre1.8.0_101-1.8.0_101-fcs.x86_64) scriptlet failed, exit status 127

B)

fadheela:~ # rpm -qa | grep jre
jre1.8.0_101-1.8.0_101-fcs


REGRESSION. Last worked in version 8u101

ADDITIONAL REGRESSION INFORMATION:
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Install SUSE 11 SP4 and patch it fully.

install java using this rpm jre-8u101-linux-x64.rpm


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Install / un-install without error
ACTUAL -
1) Installing java give an error

A- Installing give us error:

fadheela:~ # rpm -ivh jre-8u101-linux-x64.rpm
Preparing... ########################################### [100%]
   1:jre1.8.0_101 ########################################### [100%]
Unpacking JAR files...
        plugin.jar...
        javaws.jar...
        deploy.jar...
        rt.jar...
        jsse.jar...
        charsets.jar...
        localedata.jar...
/var/tmp/rpm-tmp.40318: line 638: /usr/sbin/alternatives: No such file or directory
error: %post(jre1.8.0_101-1.8.0_101-fcs.x86_64) scriptlet failed, exit status 127

B)

fadheela:~ # java -version
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)


C) un-installing give us error

A)

fadheela:~ # rpm -e jre1.8.0_101-1.8.0_101-fcs
/var/tmp/rpm-tmp.23896: line 583: /usr/sbin/alternatives: No such file or directory
error: %postun(jre1.8.0_101-1.8.0_101-fcs.x86_64) scriptlet failed, exit status 127

B)

fadheela:~ # rpm -qa | grep jre
jre1.8.0_101-1.8.0_101-fcs


REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
1) if java was not installed then:

ln -s /usr/sbin/update-alternatives /usr/sbin/alternatives

2) if java was installed with error, to uninstall it then


# run uninstall twice:

rpm -e "jre1.8.0_101-1.8.0_101-fcs"
rpm -e "jre1.8.0_101-1.8.0_101-fcs"
rpm -e "jre1.8.0_101-1.8.0_101-fcs" --allmatches --justdb