A recent jdk/jdk CI build job failed on solaris-sparc-debug:

jib > Creating support/symbols/ct.sym
jib > Compiling 89 properties into resource bundles for java.desktop
jib > Compiling 2940 files for java.base
jib > Connection attempt failed: Connection refused (Connection refused)
jib > Connection attempt failed: Connection refused (Connection refused)
jib > Connection attempt failed: Connection refused (Connection refused)
jib > Giving up
jib > IOException caught during compilation: Could not connect to server
jib > CompileJavaModules.gmk:568: recipe for target '/scratch/opt/mach5/mesos/work_dir/9437bfb1-1b03-4a73-b9a6-868884fcbeb3/workspace/build/solaris-sparcv9-debug/jdk/modules/java.base/_the.java.base_batch' failed
jib > make[3]: *** [/scratch/opt/mach5/mesos/work_dir/9437bfb1-1b03-4a73-b9a6-868884fcbeb3/workspace/build/solaris-sparcv9-debug/jdk/modules/java.base/_the.java.base_batch] Error 1
jib > make/Main.gmk:202: recipe for target 'java.base-java' failed
jib > make[2]: *** [java.base-java] Error 1
jib > make[2]: *** Waiting for unfinished jobs....
jib >
jib > ERROR: Build failed for target 'default (product-bundles test-bundles)' in configuration 'solaris-sparcv9-debug' (exit code 2)
jib >