[tycho-user] Forking in combination with BREE (Re: should <showWarnings>

[Johan Compagner <jcompagner@xxxxxxxxxx>]

Hi,

i tried a few things more to get my warnings out and playing with useJDK

I have to seem to be missing some docs.. or the docs really needs to be updated of the compiler plugin, for example fork:

https://www.eclipse.org/tycho/sitedocs/tycho-compiler-plugin/compile-mojo.html#fork 

 there is nothing that says there in the docs that that needs some more stuff

Because if you just enabled that you will get:

 Failed to execute goal org.eclipse.tycho:tycho-compiler-plugin:1.4.0:compile (default-compile) on project servoy_base: Fatal error compiling: compileoutOfProcess not supported -> [Help 1]

Then i though hmm maybe this will work with <useJDK>BREE</useJDK> that we then will fork out, if i also add that:

[ERROR] Failed to execute goal org.eclipse.tycho:tycho-compiler-plugin:1.4.0:compile (default-compile) on project servoy_base: useJDK = BREE configured, but no toolchain of type 'jdk' with id 'JavaSE-1.8' found. See http://maven.apache.org/guides/mini/guide-using-toolchains.html -> [Help 1]

But as far as i know i have it all configured, i have a toolchains.xml file in my .m2 dir:

<toolchains>
  <!-- JDK toolchains -->
  <toolchain>
       <type>jdk</type>
       <provides>
        <id>JavaSE-8</id>
       </provides>
       <configuration>
        <jdkHome>c:/javatools/jdk18/</jdkHome>
       </configuration>
  </toolchain>
</toolchains>

i have then also enabled the toolchain plugin:

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-toolchains-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<goals>
<goal>toolchain</goal>
</goals>
</execution>
</executions>
<configuration>
<toolchains>
<jdk>
<id>JavaSE-8</id>
</jdk>
</toolchains>
</configuration>
</plugin>

the output of that plugin says that it did find it:

[INFO] --- maven-toolchains-plugin:3.0.0:toolchain (default) @ servoy_base ---
[INFO] Required toolchain: jdk [ id='JavaSE-8' ]
[INFO] Found matching toolchain for type jdk: JDK[c:/javatools/jdk18/]

But still i get the error above...

So how is this supposed to work?

What steps am i missing here?

Johan

On Mon, 14 Oct 2019 at 18:22, Johan Compagner <jcompagner@xxxxxxxxxx> wrote:

Hi,

i have this:

    <groupId>org.eclipse.tycho</groupId>
<artifactId>tycho-compiler-plugin</artifactId>
<version>${tycho.version}</version>
<configuration>
<showWarnings>false</showWarnings>

xxxx

but it will show warnings no matter what

i also tried to run with:

mvn clean install -Dmaven.compiler.showWarnings=false

but still a lot of warnings..

The same thing is that i can't get that <useJDK> to work

i have added this in my toolchains.xml file:

<toolchain>
       <type>jdk</type>
       <provides>
       <id>JavaSE-8</id>
       </provides>
       <configuration>
       <jdkHome>c:/javatools/jdk18/</jdkHome>
       </configuration>
  </toolchain>

and then use

<useJDK>BREE</useJDK>

in the configuration of the tycho compiler plugin

and in the manifest i do have:

Bundle-RequiredExecutionEnvironment: JavaSE-1.8

But no matter what if i then run maven (java.home property) with java12

it will start to complain it can't find or use it:

Could not find specification for custom execution environment profile 'JavaSE-12'

also the -X of maven doesn't really tell that much, i had hopped for a bit more output of the compiler plugin..

--

Johan Compagner

Servoy

--

Johan Compagner

Servoy