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Bug#963396: jimfs: FTBFS: [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project jimfs: Compilation failure

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On Fri, 7 Aug 2020, Pierre Gruet wrote:

> I suggest using the enclosed patch, which allows the build to succeed by
> overriding the ``test'' method of Predicate<T>. The ``apply'' method
> provided by upstream has to be kept as it is used by the ``test'' method.

But why? This amount of redundancy is… ridiculous.

private static final Predicate<Object> NOT_EMPTY =
      new Predicate<Object>() {
        @Override
        public boolean apply(Object input) {
          return !input.toString().isEmpty();
        }
      };

I was just suggesting replacing this with…

private static final Predicate<Object> NOT_EMPTY =
	input -> !input.toString().isEmpty();

… but then I saw https://stackoverflow.com/q/41930727/2171120
and the code from jimfs seems to use Guava, not standard Java:

import com.google.common.collect.Iterables;
import com.google.common.base.Predicate;

Looking at guava/src/com/google/common/base/Predicate.java in
the Debian source package guava-libraries (29.0-5) I see:

 * <p>As this interface extends {@code java.util.function.Predicate}, an instance of this type may
 * be used as a {@code Predicate} directly. To use a {@code java.util.function.Predicate} where a
 * {@code com.google.common.base.Predicate} is expected, use the method reference {@code
 * predicate::test}.
 *
 * <p>This interface is now a legacy type. Use {@code java.util.function.Predicate} (or the

This means the correct patch is more like… ugh, this is more complicated.
Also, com.google.common.base.Predicate implements a default test method.

In addition, for some reason, jimfs still builds for Java 7.

Gimme a bit, I’ll build it locally, now I found the Debian packaging.

bye,
//mirabilos
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Bug#963396: jimfs: FTBFS: [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project jimfs: Compilation failure Andreas Tille <andreas@an3as.eu> - 2020-08-06 11:10 +0200
  Bug#963396: jimfs: FTBFS: [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project jimfs: Compilation failure Thorsten Glaser <t.glaser@tarent.de> - 2020-08-07 18:10 +0200
  Bug#963396: jimfs: FTBFS: [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project jimfs: Compilation failure Thorsten Glaser <t.glaser@tarent.de> - 2020-08-08 00:10 +0200
    Re: jimfs: FTBFS: [ERROR] Failed to execute goal  org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile  (default-compile) on project jimfs: Compilation failure Andreas Tille <andreas@an3as.eu> - 2020-08-08 17:50 +0200
      Re: jimfs: FTBFS: [ERROR] Failed to execute goal  org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile)  on project jimfs: Compilation failure Thorsten Glaser <t.glaser@tarent.de> - 2020-08-08 18:30 +0200
  Re: jimfs: FTBFS: [ERROR] Failed to execute goal  org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile  (default-compile) on project jimfs: Compilation failure Mechtilde Stehmann <mechtilde@debian.org> - 2020-08-10 21:20 +0200

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