I am not a Java 9 expert either. I just installed and switched the value of JAVA_HOME to point to it. I ran ant under Windows 10 in the build directory and sent the output to a log file. That's all I know at the moment.

On Wed, Sep 27, 2017 at 1:56 PM, Robert Goldman <rpgoldman@sift.net> wrote:

That's weird, because looking at this http://download.java.net/java/jdk9/docs/api/java/net/URLClassLoader.html#getURLs-- (http://preview.tinyurl.com/yat6a6oq), it looks like that method is still supplied in Java 9.

But I'm not a Java person at all, so I could easily be wrong about this.

On 27 Sep 2017, at 12:51, Gregory Baryza wrote:

I tried compiling it and was presented with the following error:
     ....
     [java] ; Loading
C:/Downloads/Armed_Bear_Lisp/abcl-src-1.5.0/build/classes/org/armedbear/lisp/abcl-contrib.abcl
...
     [java]
     [java] ; Compilation unit finished
     [java] ;   The following functions were used but not defined:
     [java] ;     SYSTEM::SOURCE
     [java]
     [java] 311.988 seconds real time
     [java] 249904041 cons cells
     [java] JAVA-EXCEPTION: Java exception
'java.lang.NoSuchMethodException: No applicable method named getURLs found
in java.lang.ClassLoader or
jdk.internal.loader.ClassLoaders$AppClassLoader'.

BUILD FAILED
C:\Downloads\Armed_Bear_Lisp\abcl-src-1.5.0\build.xml:280: The following
error occurred while executing this line:
C:\Downloads\Armed_Bear_Lisp\abcl-src-1.5.0\build.xml:299: Java returned: -1

Total time: 6 minutes 11 seconds

It compiled successfully under JDK_1_8_0_144.  Has anyone else seen this?