Hi Vlad,

I'll set up a Xubuntu VM this afternoon and see if I can reproduce the

We should really be using target 1.6 anyway nowadays, so that's an easy
fix—but I'll see if I can figure out what is causing the remaining "100


On Wed, Oct 3, 2018 at 4:45 AM Vladislav Sekulic <[log in to unmask]>

> Hello!
> I am attempting to install ECJ on Ubuntu 18.04 and am encountering a few
> problems. I'm using the version checked out from github (26, I believe).
> When installing via the Maven method ("mvn clean package") the install
> procedure fails at the tests stage, with a
> java.lang.reflect.InvocationTargetException error, caused by
> "java.lang.RuntimeException: Class java/util/UUID could not be
> instrumented." and "java.lang.NoSuchFieldException: $jacocoAcces".
> I then tried installing using the Makefile, without the gui:
> ---
> $ make
> This builds the code except for gui
> For other Makefile options, type: make help
> mkdir -p target/classes
> javac -target 1.5 -source 1.5 -g -Xlint:deprecation -d target/classes
> src/main/java//ec/*.java
> ****SNIP****
> warning: [options] bootstrap class path not set in conjunction with
> -source 5
> error: Source option 5 is no longer supported. Use 6 or later.
> error: Target option 1.5 is no longer supported. Use 1.6 or later.
> Makefile:115: recipe for target 'base' failed
> make: *** [base] Error 2
> ---
> For reference, java -version gives me openjdk 10.0.2, and mvn -version
> gives 3.5.2. I tried the lazy solution of changing the -target and -source
> flags to 1.6 in the Makefile, but got 100 errors, so no go there. :)
> I may try to install an older JDK 5 but before going down that path I
> thought I'd ask first in case I'm missing something very basic. Let me know
> if I can provide any further troubleshooting!
> Thank you,
> Vlad Sekulic
> RIKEN Center for Brain Science


Doctoral Candidate, George Mason University
Web Director, Journal of Mason Graduate Research