Re: [tycho-user] Compiling with BREE JavaSE-11

[Christoph Läubrich <laeubi@xxxxxxxxxxxxxx>]

Do you have the chance to download the source, change the line and try 
with a recompiled version? Beside this I think the exception itself 
qualifies for a bug sou you can open a Buguilla Bug for this?

Am 18.06.20 um 13:46 schrieb Alexander Aumann:
> Hi everyone,
>
> I am having trouble getting Tycho to compile our project when we update
> some bundles to require JavaSE-11.
>
> The build both contains bundles with BREE JavaSE-1.8 and some with
> JavaSE-11.
>
>
> We configure the compiler to <useJdk>BREE</useJdk> (and have the
> corresponding toolchains configured)
>
>
> Using tycho 1.7.0 this lead to errors in the JavaSE-11 bundles:
>
> "option -bootclasspath not supported at compliance level 9 and above"
>
> (described here, I guess:
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=548999).
>
>
> So I tried using the current Tycho 2.0.0-SNAPSHOT
>
>
> Now, however, I get this trace for the JavaSE-1.8 bundles:
>
> Caused by: java.lang.NumberFormatException: For input string: "1.8"
>      at java.lang.NumberFormatException.forInputString
> (NumberFormatException.java:65)
>      at java.lang.Integer.parseInt (Integer.java:652)
>      at java.lang.Integer.parseInt (Integer.java:770)
>      at
> org.eclipse.jdt.internal.compiler.impl.CompilerOptions.releaseToJDKLevel
> (CompilerOptions.java:850)
>      at org.eclipse.tycho.compiler.jdt.JDTCompiler.compileInProcess
> (JDTCompiler.java:362)
>      at org.eclipse.tycho.compiler.jdt.JDTCompiler.performCompile
> (JDTCompiler.java:121)
>
>
> I assume this is due to the jdt.prefs compiler source/compliance level
> being "1.8" in that case.
>
> My guess is that in the change for the original bug
> (https://git.eclipse.org/r/#/c/148490/9/tycho-compiler-jdt/src/main/java/org/eclipse/tycho/compiler/jdt/JDTCompiler.java):
>
> lines 360 and following, instead of "releaseToJDKLevel" maybe
> "versionToJdkLevel" should be used?
>
>
> However, I could very well be wrong here and everything should work just
> fine with Tycho 1.7. Any help or hints appreciated.
>
> Kind regards,
> Alexander
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