vscode-java-dependency Install Problem

devcontainer.json defines two vscode extensions: Gradle for Java (vscjava.vscode-gradle) and Project Manager for Java (vscjava.vscode-java-dependency).

"extensions": [
    "vscjava.vscode-java-dependency",
    "vscjava.vscode-gradle"
]

The Gradle extension is defined to show that at least one extension can be installed and activated with an entry in customizations.vscode.extensions. The build.gradle file (and other support files) exist so that the Gradle tab is populated in the activity bar.

devcontainer Start Up Logs

The complete logs for a devcontainer build and startup is logged in dev-container-build-log.txt. In particular, we can see that an install step is executed for the Project Manager for Java extension:

[15064 ms] [20:31:02] Installing extension 'vscjava.vscode-java-dependency'...
[15066 ms] [20:31:02] Getting Manifest... vscjava.vscode-java-dependency
[15071 ms] [20:31:02] Installing extension 'vscjava.vscode-gradle'...
[20:31:02] Getting Manifest... vscjava.vscode-gradle
[15224 ms] [20:31:02] Installing extension 'ms-azuretools.vscode-docker'...
[20:31:02] Getting Manifest... ms-azuretools.vscode-docker
[15446 ms] [20:31:02] Installing extension: vscjava.vscode-java-dependency
[15447 ms] [20:31:02] Installing extension: vscjava.vscode-gradle
[15642 ms] [20:31:03] Installing extension: ms-azuretools.vscode-docker

However, when the dev container finishes launching, the Java Project tab isn't present in the Explorer tab.

Installing Manually

Installing the Project Manager for Java manually, the Java Project tab is populated in the Explorer tab. The complete logs for the install is:

[467824 ms] [20:38:35] Getting Manifest... vscjava.vscode-java-dependency
[468076 ms] [20:38:35] Installing extension: vscjava.vscode-java-dependency
[470432 ms] [20:38:37] Extension signature is verified: vscjava.vscode-java-dependency
[470475 ms] [20:38:37] Extracted extension to file:///home/vscode/.vscode-server/extensions/vscjava.vscode-java-dependency-0.23.4: vscjava.vscode-java-dependency
[470480 ms] [20:38:37] Renamed to /home/vscode/.vscode-server/extensions/vscjava.vscode-java-dependency-0.23.4
[470482 ms] [20:38:37] Extracting extension completed. vscjava.vscode-java-dependency
[470489 ms] [20:38:37] Extension installed successfully: vscjava.vscode-java-dependency