Ruoyu Zhong created SOLR-16721:
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Summary: Java version detection fails when `_JAVA_OPTIONS` is set
Key: SOLR-16721
URL: https://issues.apache.org/jira/browse/SOLR-16721
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCLI
Affects Versions: 9.2
Environment: JDK version:
{code:java}
openjdk version "19.0.2" 2023-01-17
OpenJDK Runtime Environment Homebrew (build 19.0.2)
OpenJDK 64-Bit Server VM Homebrew (build 19.0.2, mixed mode, sharing) {code}
OS version: macOS 11, 12, 13 (x86_64 and arm64); Ubuntu 22.04 (x86_64)
Reporter: Ruoyu Zhong
When the environment variable {{_JAVA_OPTIONS}} is set, {{solr}} fails with the
following error:
{code:java}
$ solr -i
Your current version of Java is too old to run this version of Solr.
We found major version , using command
'/opt/homebrew/opt/openjdk/libexec/openjdk.jdk/Contents/Home/bin/java
-version', with response:
Picked up _JAVA_OPTIONS:
-Duser.home=/Users/brew/Library/Caches/Homebrew/java_cache
-Djava.io.tmpdir=/private/tmp
openjdk version "19.0.2" 2023-01-17
OpenJDK Runtime Environment Homebrew (build 19.0.2)
OpenJDK 64-Bit Server VM Homebrew (build 19.0.2, mixed mode, sharing)
Please install latest version of Java 11 or set JAVA_HOME properly. {code}
This is because in the following version check logic (taken from
[here|https://github.com/apache/solr/blob/a2f6565415663908163f9490856cf0fcfda88b41/solr/bin/solr#L166]),
only first line of {{java -version}} output is examined:
{code:java}
JAVA_VER_NUM=$(echo "$JAVA_VER" | head -1 | awk -F '"' '/version/ {print $2}' |
sed -e's/^1\.//' | sed -e's/[._-].*$//') {code}
But as indicated in the output above, {{java}} outputs "{{{}Picked up
_JAVA_OPTIONS{}}}" on the first line instead, if {{_JAVA_OPTIONS}} is set. So,
the version on the second line is not picked up.
I believe that it's [this recent
change|https://github.com/apache/solr/commit/025c0305fa829baa770f62c81654af8a708753d9]
(SOLR-9509), which added a pair of quotes around {{{}$JAVA_VER{}}}, that
introduced this regression. This used to work in an unintended way, because
Bash treated the unquoted {{$JAVA_VER}} variable as an array of separate
arguments and output that in a single line. But after introducing the double
quotes, the newlines in {{$JAVA_VER}} are now preserved.
{code:java}
$ JAVA_VER="$(java -version 2>&1)"
$ echo $JAVA_VER
Picked up _JAVA_OPTIONS:
-Duser.home=/Users/ruoyu/Library/Caches/Homebrew/java_cache
-Djava.io.tmpdir=/private/tmp openjdk version "19.0.2" 2023-01-17 OpenJDK
Runtime Environment Homebrew (build 19.0.2) OpenJDK 64-Bit Server VM Homebrew
(build 19.0.2, mixed mode, sharing)
$ echo "$JAVA_VER"
Picked up _JAVA_OPTIONS:
-Duser.home=/Users/ruoyu/Library/Caches/Homebrew/java_cache
-Djava.io.tmpdir=/private/tmp
openjdk version "19.0.2" 2023-01-17
OpenJDK Runtime Environment Homebrew (build 19.0.2)
OpenJDK 64-Bit Server VM Homebrew (build 19.0.2, mixed mode, sharing) {code}
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