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  1. OpenJDK
  2. OPENJDK-2415

[rhel-7] jboss.container.java.singleton-jdk might break 'java' alternative

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      We have seen cases where the java link wasn't there for container builds. It looks like installation of jolokia-jvm-agent drags in java-1.8.0-openjdk-headless which also changes the java alternative. In some cases a force removal of java-1.8.0-openjdk-headless could potentially break the java alternative. Since I wasn't able to reproduce this myself, I've produced this patch and tried a build on an affected system which worked:

      diff --git a/modules/jboss.container.java.singleton-jdk/configure.sh b/modules/jboss.container.java.singleton-jdk/configure.sh
      index 0ad9ce4..b03e905 100755
      --- a/modules/jboss.container.java.singleton-jdk/configure.sh
      +++ b/modules/jboss.container.java.singleton-jdk/configure.sh
      @@ -14,3 +14,6 @@ fi
       # Clean up any java-* packages that have been installed that do not match
       # our stated JAVA_VERSION-JAVA_VENDOR (e.g.: 11-openjdk; 1.8.0-openj9)
       rpm -e --nodeps $(rpm -qa java-* | grep -v "^java-${JAVA_VERSION}-${JAVA_VENDOR}")
      +# Ensure currently installed JDK alternative for 'java' works
      +_arch="$(uname -i)"
      +alternatives --set java java-${JAVA_VERSION}-${JAVA_VENDOR}.${_arch}
      

      However, we need to properly upstream this to the singleton-jdk module in order for this to not re-appear.

              jdowland@redhat.com Jonathan Dowland
              jdowland@redhat.com Jonathan Dowland
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