The same bug exists in OpenJDK-11 in disco:
$ ls -l /usr/lib/jvm/java-11-openjdk-amd64/src.zip lrwxrwxrwx 1 root root 21 04-02 16:42 /usr/lib/jvm/java-11-openjdk-amd64/src.zip -> ../openjdk-11/src.zip
The same bug exists in OpenJDK-11 in disco:
$ ls -l /usr/lib/ jvm/java- 11-openjdk- amd64/src. zip jvm/java- 11-openjdk- amd64/src. zip -> ../openjdk- 11/src. zip
lrwxrwxrwx 1 root root 21 04-02 16:42 /usr/lib/