Benoît created BUILDR-736:
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Summary: Running JRuby w/ Java 9 throws an
IllegalArgumentException
Key: BUILDR-736
URL: https://issues.apache.org/jira/browse/BUILDR-736
Project: Buildr
Issue Type: Bug
Reporter: Benoît
Hi,
My setup is
* jruby 9.2.0.0 (2.5.0) 2018-05-24 81156a8 Java HotSpot(TM) 64-Bit Server VM
9.0.4+11 on 9.0.4+11 +jit [linux-x86_64]
* java 9.0.4
* buildr 1.5.6
Trying to build a project results in an illegal reflective access warning and
an exception at lib/**buildr/java/jruby.rb:121.
{quote}WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.jruby.javasupport.JavaMethod to
method java.net.URLClassLoader.addURL(java.net.URL)
WARNING: Please consider reporting this to the maintainers of
org.jruby.javasupport.JavaMethod
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
{quote}
{quote}Buildr aborted!
Java::JavaLang::IllegalArgumentException : object is not an instance of
declaring class
jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
jdk.internal.reflect.NativeMethodAccessorImpl.invoke(jdk/internal/reflect/NativeMethodAccessorImpl.java:62)
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(jdk/internal/reflect/DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(java/lang/reflect/Method.java:564)
jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
jdk.internal.reflect.NativeMethodAccessorImpl.invoke(jdk/internal/reflect/NativeMethodAccessorImpl.java:62)
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(jdk/internal/reflect/DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(java/lang/reflect/Method.java:564)
org.jruby.javasupport.JavaMethod.invokeDirectWithExceptionHandling(org/jruby/javasupport/JavaMethod.java:425)
org.jruby.javasupport.JavaMethod.invokeDirect(org/jruby/javasupport/JavaMethod.java:292)
RUBY.block in
load(/home/bdardenn/.rbenv/versions/jruby-9.2.0.0/lib/ruby/gems/shared/gems/buildr-1.5.6-java/lib/buildr/java/jruby.rb:121)
{quote}
The pointed at code does some funky hacks to the classpath, calling addURL on
the system class loader, assuming that it is an instance of URLClassLoader.
However, this does not seem to be the case (anymore).
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