PR #501 added [concore.java](vscode-file://vscode-app/c:/Users/avina/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-browser/workbench/workbench.html) for local Java I/O. [mkconcore.py](vscode-file://vscode-app/c:/Users/avina/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-browser/workbench/workbench.html) still doesn’t generate local Java build/run/debug (windows + posix). Need small follow-up as discussed: copy [concore.java](vscode-file://vscode-app/c:/Users/avina/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-browser/workbench/workbench.html) for [.java](vscode-file://vscode-app/c:/Users/avina/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-browser/workbench/workbench.html) nodes add [javac](vscode-file://vscode-app/c:/Users/avina/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-browser/workbench/workbench.html) step add [java](vscode-file://vscode-app/c:/Users/avina/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/code/electron-browser/workbench/workbench.html) run/debug step
