Andrew Janke created FLINK-9445:
-----------------------------------
Summary: start-scala-shell.sh fails on macOS when Java 9 & 10 are
installed
Key: FLINK-9445
URL: https://issues.apache.org/jira/browse/FLINK-9445
Project: Flink
Issue Type: Bug
Affects Versions: 1.5.0
Environment: macOS High Sierra 10.13.4
$ sw_vers
ProductName: Mac OS X
ProductVersion: 10.13.4
BuildVersion: 17E202
I have multiple JDKs installed:
$ ls /Library/Java/JavaVirtualMachines
jdk-10.0.1.jdk jdk-9.0.4.jdk jdk1.7.0_79.jdk jdk1.8.0_141.jdk
Reporter: Andrew Janke
I'm attempting to install and test apache-flink 1.5.0 on macOS using Homebrew.
The test step runs flink's `start-scala-shell.sh` to exercise the package. When
I do this, it issues some warnings about log4j and reflective access, and then
hangs.
$ brew test apache-flink
Testing apache-flink
==> /usr/local/Cellar/apache-flink/1.5.0/libexec/bin/start-scala-shell.sh local
Picked up _JAVA_OPTIONS:
-Djava.io.tmpdir=/tmp/apache-flink-test-20180526-20068-19gl4zf
-Duser.home=/Users/janke/Library/Caches/Homebrew/java_cache
log4j:WARN No appenders could be found for logger
(org.apache.flink.configuration.GlobalConfiguration).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See [http://logging.apache.org/log4j/1.2/faq.html#noconfig] for
more info.
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by
org.apache.flink.core.memory.HybridMemorySegment
([file:/usr/local/Cellar/apache-flink/1.5.0/libexec/lib/flink-dist_2.11-1.5.0.jar|file:///usr/local/Cellar/apache-flink/1.5.0/libexec/lib/flink-dist_2.11-1.5.0.jar])
to field java.nio.Buffer.address
WARNING: Please consider reporting this to the maintainers of
org.apache.flink.core.memory.HybridMemorySegment
WARNING: Use --illegal-access=warn to enable warnings of further illegal
reflective access operations
WARNING: All illegal access operations will be denied in a future release
The log4j warnings just mean that log4j hasn't been initialized; no big deal.
The "Illegal reflective access" warnings look like the warnings you see when
running Java 8-only software under Java 9 or Java 10.
This happens even when I set `JAVA_HOME` to point at my JDK 8 installation.
I suspect this is because the `start-scala-shell.sh` script calls plain `java`
instead of using the `$JAVA_RUN` variable set in flink's `config.sh`, which it
called earlier, and which seems to respect `$JAVA_HOME`. From
`start-scala-shell.sh`:
if ${EXTERNAL_LIB_FOUND}
then
java -Dscala.color -cp "$FLINK_CLASSPATH" $log_setting
org.apache.flink.api.scala.FlinkShell $@ --addclasspath "$EXT_CLASSPATH"
else
java -Dscala.color -cp "$FLINK_CLASSPATH" $log_setting
org.apache.flink.api.scala.FlinkShell $@
fi
Should `start-scala-shell.sh` be changed to use `$JAVA_HOME` like the other
scripts in `libexec`?
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