Ewa Śliwińska created MCOMPILER-375: ---------------------------------------
Summary: can't use release tag on Ubuntu Key: MCOMPILER-375 URL: https://issues.apache.org/jira/browse/MCOMPILER-375 Project: Maven Compiler Plugin Issue Type: Bug Affects Versions: 3.5 Environment: Maven 3.5.2 on Ubuntu 18.04 with Java 10 Reporter: Ewa Śliwińska I want to configure my Maven project to use Java 8. Normally I do it by pasting {code:java} <build> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.8.0</version> <configuration> <release>8</release> </configuration> </plugin> </plugins> </build>{code} into POM, and this works fine on Maven 3.5.4 on Windows 10 with Java 8. But when I tried to compile it using Maven 3.5.2 on Ubuntu 18.04 with Java 10, it says *invalid flag: --release*. I'm not sure when this tag was introduces, I have problems containing information about it. ---- Nevertheless, I don't mind (that much) using _source_ and _target_ instead of _release._ I tried it, but then I can't compile my project because of the error related to Google Guava Table: {code:java} [ERROR] /C:/Users/kresk/git/boundtest/src/main/java/Example.java:[23,61] incompatible types: inferred type does not conform to upper bound(s) [ERROR] inferred: com.google.common.collect.Table<java.lang.Object,java.lang.Object,java.lang.Object> [ERROR] upper bound(s): com.google.common.collect.Table<java.lang.Object,java.lang.Object,java.lang.Object>,com.google.common.collect.Table<? extends java.lang.Integer,? extends java.lang.Integer,? extends java.lang.Integer>,java.lang.Object{code} I can't figure out how it's related, the only thing I know is it just compiles when using _release_ tag. This is the code causing error: {code:java} final Table<Integer, Integer, Integer> destination = HashBasedTable.create(); final Map<Integer, Integer> source = new HashMap<>(); // compiles final Table<Integer, Integer, Integer> broker = source.entrySet().stream().collect( Tables.toTable( e -> 0, e -> 0, e -> 0, ( e1, e2 ) -> null, HashBasedTable::create ) ); destination.putAll( broker ); // doesn't compile destination.putAll( source.entrySet().stream().collect( Tables.toTable( e -> 0, e -> 0, e -> 0, ( e1, e2 ) -> null, HashBasedTable::create ) ) ); {code} Like I said, I'm not sure how it's related and I would like to focus on _release_ tag problem here. I just attached it in case of it may help you in any way. {color:#cccccc}Side note: please add 3.5.2 Maven version to the list of available in Jira versions. Currently it says there is no version like this.{color} {color:#cccccc}After you do that, please set this bug version to 3.5.2 and delete this side note.{color} -- This message was sent by Atlassian JIRA (v7.6.3#76005)