David Costanzo created JEXL-320:
-----------------------------------
Summary: "mvn test" fails with COMPILATION ERROR in
SynchronizedArithmetic.java on Java 11
Key: JEXL-320
URL: https://issues.apache.org/jira/browse/JEXL-320
Project: Commons JEXL
Issue Type: Bug
Environment: JDK: OpenJDK 11 (hotspot)
OS: Ubuntu 18.04.3 LTS
Apache Maven 3.3.9
Reporter: David Costanzo
Running "mvn test" when using OpenJDK's Java 11 fails with the following errors:
{noformat}
[WARNING] COMPILATION WARNING :
[INFO] -------------------------------------------------------------
[WARNING]
/local_static/github/commons-jexl/src/test/java/org/apache/commons/jexl3/SynchronizedArithmetic.java:[24,16]
sun.misc.Unsafe is internal proprietary API and may be removed in a future
release
[WARNING]
/local_static/github/commons-jexl/src/test/java/org/apache/commons/jexl3/SynchronizedArithmetic.java:[97,20]
sun.misc.Unsafe is internal proprietary API and may be removed in a future
release
[WARNING]
/local_static/github/commons-jexl/src/test/java/org/apache/commons/jexl3/SynchronizedArithmetic.java:[100,23]
sun.misc.Unsafe is internal proprietary API and may be removed in a future
release
[WARNING]
/local_static/github/commons-jexl/src/test/java/org/apache/commons/jexl3/SynchronizedArithmetic.java:[102,23]
sun.misc.Unsafe is internal proprietary API and may be removed in a future
release
[INFO] 4 warnings
[INFO] -------------------------------------------------------------
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR]
/local_static/github/commons-jexl/src/test/java/org/apache/commons/jexl3/SynchronizedArithmetic.java:[63,19]
cannot find symbol
symbol: method monitorEnter(java.lang.Object)
location: variable UNSAFE of type sun.misc.Unsafe
[ERROR]
/local_static/github/commons-jexl/src/test/java/org/apache/commons/jexl3/SynchronizedArithmetic.java:[72,19]
cannot find symbol
symbol: method monitorExit(java.lang.Object)
location: variable UNSAFE of type sun.misc.Unsafe
[ERROR]
/local_static/github/commons-jexl/src/test/java/org/apache/commons/jexl3/SynchronizedArithmetic.java:[113,19]
cannot find symbol
symbol: method monitorEnter(java.lang.Object)
location: variable UNSAFE of type sun.misc.Unsafe
[ERROR]
/local_static/github/commons-jexl/src/test/java/org/apache/commons/jexl3/SynchronizedArithmetic.java:[118,19]
cannot find symbol
symbol: method monitorExit(java.lang.Object)
location: variable UNSAFE of type sun.misc.Unsafe
{noformat}
BUILDING.txt states that JEXL "requires Java 6 (or later)". I assume that you
expect "mvn test" to work with Java 11. If not, then this is really a doc bug
in BUILDING.txt–it should say that it "requires Java 6 (exactly)" or include
the range of supported Java versions.
*Impact*
This is a small barrier to entry for a new contributor. There is an obvious
and straight-forward way to get past the problem, which is to download a
compatible version of Java and set JAVA_HOME accordingly. I used Java 1.8,
which already had installed on my dev machine. This prints the same warnings,
but no errors.
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