=> "/opt/tools/bin/bmake" ["-C", "/data/jenkins/workspace/pkgsrc-trunk-tools/lang/openjdk8", "stage-package-create", "BATCH=1", "DEPENDS_TARGET=/nonexistent"]
=> Creating binary package /home/pbuild/work/lang/openjdk8/work/.packages/openjdk8-1.8.502nb1.tgz
=> Signing binary package /home/pbuild/work/lang/openjdk8/work/.packages/openjdk8-1.8.502nb1.tgz (GPG)
gpg: error running '/opt/local/bin/gpg-agent': exit status 2
gpg: failed to start gpg-agent '/opt/local/bin/gpg-agent': General error
gpg: can't connect to the gpg-agent: General error
gpg: keydb_search failed: No agent running
gpg: skipped "8254B861": No agent running
gpg: signing failed: No agent running
*** Error code 141

Stop.
bmake: stopped making "stage-package-create" in /data/jenkins/workspace/pkgsrc-trunk-tools/lang/openjdk8