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Enabling preview features causes error checks to disappear #2994
Description
After enabling preview features in pom.xml, all error checks disappear in Java files.
Environment
- Operating System: Windows_NT x64 10.0.19044
- JDK version: JDK 17
- Visual Studio Code version: 1.76.0
- Java extension version: 1.15.0
Steps To Reproduce
- Follow the steps here: https://github.com/redhat-developer/vscode-java/wiki/Enabling-Java-preview-features
pom.xml
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.11.0</version>
<configuration>
<source>17</source>
<target>17</target>
<compilerArgs>--enable-preview</compilerArgs>
</configuration>
</plugin>
- Type anything into a Java file that should cause errors.
- Java Language Server Log File
!ENTRY org.eclipse.jdt.ls.core 1 0 2023-03-10 21:41:01.979
!MESSAGE >> workspace/didChangeWatchedFiles
!ENTRY org.eclipse.jdt.ls.core 1 0 2023-03-10 21:41:02.663
!MESSAGE Reconciled 1. Took 0 ms
!ENTRY org.eclipse.jdt.ls.core 1 0 2023-03-10 21:41:02.710
!MESSAGE >> textDocument/inlayHint
!ENTRY org.eclipse.jdt.ls.core 1 0 2023-03-10 21:41:03.118
!MESSAGE begin problem for /SampleClass.java
!ENTRY org.eclipse.jdt.ls.core 1 0 2023-03-10 21:41:03.118
!MESSAGE 0 problems reported for /SampleClass.java
!ENTRY org.eclipse.jdt.ls.core 1 0 2023-03-10 21:41:03.118
!MESSAGE Validated 1. Took 5 ms
Current Result (with --enable-preview in pom.xml)
Expected Result (without --enable-preview in pom.xml)
Activity
fbricon commentedon Nov 12, 2025
Can't reproduce. Closing.
@gmsdelmundo please reopen and attach a sample project if you still see this issue.