Diagnose incompatible Java system classpaths #19547
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Stacked on #19546 |
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I am having a hard time getting the correct Java compilation runtime selected in the tests. I will look into this again after the first review. |
Turns out that |
cushon
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Sep 18, 2023
src/java_tools/buildjar/java/com/google/devtools/build/buildjar/javac/FormattedDiagnostic.java
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@fmeum can you please take a look at the conflicts? Thanks |
When the Java system classpath extracted from the target Java runtime is more recent than the Java runtime used for Java compilation, JavaBuilder now emits a `[BazelJavaConfiguration]` diagnostic with actionable information instead of a bunch of "bad class file" errors on `module-info` files. Example: ``` error: [BazelJavaConfiguration] The Java 17 runtime used to run javac is not recent enough to compile for the Java 20 runtime in external/remotejdk20_linux. Either register a Java toolchain with a newer java_runtime or specify a lower --java_runtime_version. ```
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@iancha1992 Done! |
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When the Java system classpath extracted from the target Java runtime is more recent than the Java runtime used for Java compilation, JavaBuilder now emits a
[BazelJavaConfiguration]diagnostic with actionable information instead of a bunch of "bad class file" errors onmodule-infofiles.Example:
Work towards #17281