/usr/share/maven-repo/org/apache/httpcomponents/httpcore/ is in libhttpcore-java 4.3.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/maven-repo/org/apache/httpcomponents/httpcore-nio/4.3.3/
/usr/share/maven-repo/org/apache/httpcomponents/httpcore-nio/4.3.3/httpcore-nio-4.3.3.jar
/usr/share/maven-repo/org/apache/httpcomponents/httpcore-nio/4.3.3/httpcore-nio-4.3.3.pom
/usr/share/maven-repo/org/apache/httpcomponents/httpcore-nio/debian/
/usr/share/maven-repo/org/apache/httpcomponents/httpcore-nio/debian/httpcore-nio-debian.jar
/usr/share/maven-repo/org/apache/httpcomponents/httpcore-nio/debian/httpcore-nio-debian.pom
/usr/share/maven-repo/org/apache/httpcomponents/httpcore/4.3.3/
/usr/share/maven-repo/org/apache/httpcomponents/httpcore/4.3.3/httpcore-4.3.3.jar
/usr/share/maven-repo/org/apache/httpcomponents/httpcore/4.3.3/httpcore-4.3.3.pom
/usr/share/maven-repo/org/apache/httpcomponents/httpcore/debian/
/usr/share/maven-repo/org/apache/httpcomponents/httpcore/debian/httpcore-debian.jar
/usr/share/maven-repo/org/apache/httpcomponents/httpcore/debian/httpcore-debian.pom