We need to update to Tycho in order to force PGP signing of the
bouncycastle libraries which isn't supported by earlier Tycho versions.
For that we need to run Maven on Java 17 or higher.
In order to run tests on Java 11 add a `toolchain.xml` file into the
`~/.m2` directory providing the path to Java installations:
<?xml version='1.0' encoding='UTF-8'?>
<toolchains>
<toolchain>
<type>jdk</type>
<provides>
<id>JavaSE-11</id>
<version>11</version>
</provides>
<configuration>
<jdkHome>/path/to/java-11</jdkHome>
</configuration>
</toolchain>
<toolchain>
<type>jdk</type>
<provides>
<id>JavaSE-17</id>
<version>17</version>
</provides>
<configuration>
<jdkHome>/path/to/java-17</jdkHome>
</configuration>
</toolchain>
</toolchains>
Change-Id: Ib0f18147826e5b4a7fa1f41590772516269de702
d3d0ec4290