Backlog: Gradle issues

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Downloading

Corrupt Gradle distribution file

• JDTLS log: Gradle: Synchronize Gradle projects with workspace failed due to an error connecting to the Gradle build. #963 (comment)
• related to Problem on Linux with GRADLE_HOME environment variable redhat-developer/vscode-java#859

If the downloaded Gradle distribution is corrupted and the language server (buildship) tries to use that distribution will cause this error.

Certification issue

• JDTLS log: Gradle: Could not load Gradle version information #962 (comment)
• related to Use proper cacerts to import Java projects redhat-developer/vscode-java#2259

Proxy issue

• JDTLS log: Gradle: Could not load Gradle version information #962 (comment)
• issue: Could not install Gradle distribution under proxy eclipse-jdtls/eclipse.jdt.ls#1727
• solution:
  • https://github.com/redhat-developer/vscode-java/wiki/Using-a-Proxy
  • Could not install Gradle distribution under proxy eclipse-jdtls/eclipse.jdt.ls#1727 (comment)

Building

java.io.StreamCorruptedException: invalid type code: 00

• JDTLS log: Gradle: Synchronize Gradle projects with workspace failed due to an error connecting to the Gradle build. #963 (comment)
• related to Gradle using Java 8 - Any gradle build script error returns as a StreamCorruptedException with no useful content instead of the actual gradle exception redhat-developer/vscode-java#1594
• solution: Upgrade Gradle wrapper to greater than 7.2, see Use placeholders for java.lang.StackTraceElement gradle/gradle#17397

Module not accessible

• issue: module not accessible redhat-developer/vscode-java#941
• reference: Support Jigsaw projects eclipse-buildship/buildship#658 (comment)
• workaround (not work for all projects, e.g., Classes in Gradle submodules aren't being resolved properly eclipse-jdtls/eclipse.jdt.ls#1949): Upgrade Gradle version to Gradle 7+

JDK context mismatch

• issue: java is not on the classpath message in a non-Android Gradle project  redhat-developer/vscode-java#1876

Missing Gradle project configuration file: .settings/org.eclipse.buildship.core.prefs"

• JDTLS log: Gradle: Failed to detect project changes #975
• issue: Missing Gradle project configuration file: .settings/org.eclipse.buildship.core.prefs while import.gradle is disabled redhat-developer/vscode-java#1865
• workaround: clean project metadata files and clean language server workpace

Feature requests

bin folder

• related issue: Feature Request: configurable defaultOutputDir instead of hardcoded bin redhat-developer/vscode-java#1615
• upstream: Default binary file folder  eclipse-buildship/buildship#1131

Android support

• related issue: Doesn't work with plugin com.android.application eclipse-buildship/buildship#779 (comment)

Import exclusions

• related issue: What should the vscode-java extension configuration be like to exclude a particular folder redhat-developer/vscode-java#1795