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conan install openjdk/16.0.1@ --build=openjdk --profile=/home/conan/w/BuildSingleReference/15512/8a6a833c-929f-4ded-81df-6cec21b2ec23/profile.txt
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++
compiler.version=4.9
os=Linux
os_build=Linux
[options]
[build_requires]
[env]

openjdk/16.0.1: Forced build from source
Installing package: openjdk/16.0.1
Requirements
    openjdk/16.0.1 from local cache - Cache
Packages
    openjdk/16.0.1:4db1be536558d833e52e862fd84d64d75c2b3656 - Build

Installing (downloading, building) binaries...
openjdk/16.0.1: Building your package in /home/conan/w/BuildSingleReference/.conan/data/openjdk/16.0.1/_/_/build/4db1be536558d833e52e862fd84d64d75c2b3656
openjdk/16.0.1: Generator txt created conanbuildinfo.txt
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
openjdk/16.0.1: Calling build()
openjdk/16.0.1: Package '4db1be536558d833e52e862fd84d64d75c2b3656' built
openjdk/16.0.1: Build folder /home/conan/w/BuildSingleReference/.conan/data/openjdk/16.0.1/_/_/build/4db1be536558d833e52e862fd84d64d75c2b3656
openjdk/16.0.1: Generated conaninfo.txt
openjdk/16.0.1: Generated conanbuildinfo.txt
openjdk/16.0.1: Generating the package
openjdk/16.0.1: Package folder /home/conan/w/BuildSingleReference/.conan/data/openjdk/16.0.1/_/_/package/4db1be536558d833e52e862fd84d64d75c2b3656
openjdk/16.0.1: Calling package()
[HOOK - conan-center.py] post_package(): [PACKAGE LICENSE (KB-H012)] OK
[HOOK - conan-center.py] post_package(): [DEFAULT PACKAGE LAYOUT (KB-H013)] If you are trying to package a tool put all the contents under the 'bin' folder
[HOOK - conan-center.py] post_package(): [MATCHING CONFIGURATION (KB-H014)] OK
[HOOK - conan-center.py] post_package(): [SHARED ARTIFACTS (KB-H015)] OK
[HOOK - conan-center.py] post_package(): [PC-FILES (KB-H020)] OK
[HOOK - conan-center.py] post_package(): [CMAKE-MODULES-CONFIG-FILES (KB-H016)] OK
[HOOK - conan-center.py] post_package(): [PDB FILES NOT ALLOWED (KB-H017)] OK
[HOOK - conan-center.py] post_package(): [LIBTOOL FILES PRESENCE (KB-H018)] OK
[HOOK - conan-center.py] post_package(): [MS RUNTIME FILES (KB-H021)] OK
openjdk/16.0.1: WARN: This conanfile has no build step
[HOOK - conan-center.py] post_package(): ERROR: [DEFAULT PACKAGE LAYOUT (KB-H013)] Unknown folder 'conf' in the package (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H013) 
ERROR: [HOOK - conan-center.py] post_package(): Some checks failed running the hook, check the output