Hello, either the binaries have been compromised or an incorrect hash was published.
The hash published at https://downloads.apache.org/groovy/2.4.19/distribution/apache-groovy-binary-2.4.19.zip.sha256 is b6a6a7819bd7e222756f9dba1d62d933f217d5e491f0e82ddddfde9df8222f54 whereas the actual hash of https://dl.bintray.com/groovy/maven/apache-groovy-binary-2.4.19.zip is 24517ee43881ee52ccd52996ac3d298f0eb000ac36d59d59c2e5ef0c3ef9eb88
