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Andrew Kolos c22c19b6e2
have Java.version return null if java --version fails or cannot be run (#139614)
## Summary
Fixes https://github.com/flutter/flutter/issues/139180, where `flutter create` could crash if the `java` binary the tool found cannot be run.

## Context

At startup, the tool searches for a Java installation[^1]. Unless the located installation is from [an Android Studio installation](e1967ecabf/packages/flutter_tools/lib/src/android/android_studio.dart (L163)), the tool does not verify that the binary is runnable. For more, see https://github.com/flutter/flutter/issues/139613, which tracks this inconsistency in behavior. 

This means that in the scenario where

1) the user does not have Android Studio installed or the java binary found within cannot be run **and**
2) the user has a) `flutter config --jdk-dir` set, b) `JAVA_HOME` set in their environment, **or** c) `java` on their system path **and**
3) the java binary we think we found during cannot be run (or `java --version` fails), **then**

the user running `flutter create` with Android enabled will hit a tool crash.

## Change

`Java.version` should return null if version checking fails for any reason. [This is documented behavior](48f57621ad/packages/flutter_tools/lib/src/android/java.dart (L136)). Therefore, we'll update the implementation to first verify that the binary is runnable. If it isn't, it will return `null`.

[^1]: We find java by calling the static `Java.find`, see: 48187028c1/packages/flutter_tools/lib/src/context_runner.dart (L271)
[^2]: This PR doesn't change this, as this would be too dangerous to cherry-pick into stable.
2023-12-06 23:13:17 +00:00
.github Fix labeler not actually doing any labeling (#139596) 2023-12-05 22:43:05 +00:00
.vscode Adjust repo config for VS Code formatting (#122758) 2023-04-14 12:35:42 +02:00
bin Roll Flutter Engine from fa632d995c47 to 347f506a341f (1 revision) (#139674) 2023-12-06 18:34:26 +00:00
dev Roll dependencies (#139606) 2023-12-06 19:22:06 +00:00
examples Roll dependencies (#139606) 2023-12-06 19:22:06 +00:00
packages have Java.version return null if java --version fails or cannot be run (#139614) 2023-12-06 23:13:17 +00:00
.ci.yaml [ci.yaml] Add runif filters and stricter timeout to packaging_test (#139694) 2023-12-06 23:01:42 +00:00
.gitattributes Add pre-stable support for create on Windows (#51895) 2020-03-23 10:42:26 -07:00
.gitignore add .pub-cache back to .gitignore (#128894) 2023-06-15 19:21:05 +00:00
analysis_options.yaml Enable strict-inference (#135043) 2023-09-20 19:59:08 +00:00
AUTHORS Add mhbdev to AUTHORS (#138311) 2023-11-21 17:36:53 +00:00
CODE_OF_CONDUCT.md Update list of CoC contacts. (#130630) 2023-07-16 23:39:20 +00:00
CODEOWNERS Remove self from CODEOWNERS (#125337) 2023-04-21 22:33:05 +00:00
CONTRIBUTING.md Add a DevTools section to CONTRIBUTING.md (#137193) 2023-11-13 21:51:07 +00:00
dartdoc_options.yaml Add dartdoc warnings (#138766) 2023-11-21 01:02:00 +00:00
flutter_console.bat License update (#45373) 2019-11-27 15:04:02 -08:00
LICENSE License update (#45373) 2019-11-27 15:04:02 -08:00
PATENT_GRANT
README.md Applied the logo to the Discord badge. (#134339) 2023-09-15 04:39:30 +00:00
TESTOWNERS Add Impeller complex layout impeller benchmarks. (#139490) 2023-12-04 19:23:26 +00:00

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