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https://issues.apache.org/jira/browse/MCOMPILER-533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Arend v. Reinersdorff updated MCOMPILER-533:
--------------------------------------------
Description:
javac outputs an error when the --release option is used together with the
--source or --target option. See
[https://docs.oracle.com/en/java/javase/17/docs/specs/man/javac.html#option-release]
For example:
{{javac --release 17 --target 17 ...}}
Will fail with this error:
{{error: option --target cannot be used together with --release}}
This is nice because it informs the user of misconfiguration and enforces the
use of only \-\-release or only \-\-source/--target.
Unfortunately, the error is lost when compiling with Maven. Maven uses the
release option and silently ignores source and target. Users don't notice when
they unnecessarily set both. See for example
[https://github.com/spring-projects/spring-boot/pull/34761]
For example:
{{<plugin>}}
{{ <groupId>org.apache.maven.plugins</groupId>}}
{{ <artifactId>maven-compiler-plugin</artifactId>}}
{{ <version>3.11.0</version>}}
{{ <configuration>}}
{{ <release>17</release>}}
{{ <source>17</source>}}
{{ <target>17</target>}}
{{ </configuration>}}
{{</plugin>}}
Compiles using the release option without any error or warning.
It would be nice to restore the error from javac in Maven, or output a similar
one.
The problem I see is that Maven uses default values for source and target. When
the user sets only the release option, no error or warning should be caused
because of the default values for source and target.
was:
javac outputs an error when the --release option is used together with the
--source or --target option. See
[https://docs.oracle.com/en/java/javase/17/docs/specs/man/javac.html#option-release]
For example:
{{javac --release 17 --target 17 ...}}
Will fail with this error:
{{error: option --target cannot be used together with --release}}
This is nice because it informs the user of misconfiguration and enforces the
use of only --release or only --source/--target.
Unfortunately, the error is lost when compiling with Maven. Maven uses the
release option and silently ignores source and target. Users don't notice when
they unnecessarily set both. See for example
[https://github.com/spring-projects/spring-boot/pull/34761]
For example:
{{<plugin>}}
{{ <groupId>org.apache.maven.plugins</groupId>}}
{{ <artifactId>maven-compiler-plugin</artifactId>}}
{{ <version>3.11.0</version>}}
{{ <configuration>}}
{{ <release>17</release>}}
{{ <source>17</source>}}
{{ <target>17</target>}}
{{ </configuration>}}
{{</plugin>}}
Compiles using the release option without any error or warning.
It would be nice to restore the error from javac in Maven, or output a similar
one.
The problem I see is that Maven uses default values for source and target. When
the user sets only the release option, no error or warning should be caused
because of the default values for source and target.
> Output an error when --release option is used together with --source or
> --target
> --------------------------------------------------------------------------------
>
> Key: MCOMPILER-533
> URL: https://issues.apache.org/jira/browse/MCOMPILER-533
> Project: Maven Compiler Plugin
> Issue Type: Improvement
> Affects Versions: 3.11.0
> Reporter: Arend v. Reinersdorff
> Priority: Major
>
> javac outputs an error when the --release option is used together with the
> --source or --target option. See
> [https://docs.oracle.com/en/java/javase/17/docs/specs/man/javac.html#option-release]
> For example:
> {{javac --release 17 --target 17 ...}}
> Will fail with this error:
> {{error: option --target cannot be used together with --release}}
> This is nice because it informs the user of misconfiguration and enforces the
> use of only \-\-release or only \-\-source/--target.
> Unfortunately, the error is lost when compiling with Maven. Maven uses the
> release option and silently ignores source and target. Users don't notice
> when they unnecessarily set both. See for example
> [https://github.com/spring-projects/spring-boot/pull/34761]
> For example:
> {{<plugin>}}
> {{ <groupId>org.apache.maven.plugins</groupId>}}
> {{ <artifactId>maven-compiler-plugin</artifactId>}}
> {{ <version>3.11.0</version>}}
> {{ <configuration>}}
> {{ <release>17</release>}}
> {{ <source>17</source>}}
> {{ <target>17</target>}}
> {{ </configuration>}}
> {{</plugin>}}
> Compiles using the release option without any error or warning.
> It would be nice to restore the error from javac in Maven, or output a
> similar one.
> The problem I see is that Maven uses default values for source and target.
> When the user sets only the release option, no error or warning should be
> caused because of the default values for source and target.
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