Fix win32 CLI build due to line length limitation in javac compilation

[Copilot]

Windows enforces an ~8191 character command line limit. Projects with many source files or long classpaths exceed this when invoking javac, causing build failures.

Changes

Modified Project.java compile flow:

• Detect Windows and estimate javac command line length (args + overhead for spaces/quoting)
• When exceeding 6000 chars, write arguments to temporary file
• Invoke javac with @argfile syntax instead of direct arguments
• Clean up temp file after compilation

Implementation details:

// Triggered on Windows when command line > 6000 chars
File argFile = createJavacArgumentFile(javac);
Command newJavac = new Command();
newJavac.add(javacExecutable);
newJavac.add("@" + argFile.getAbsolutePath());

The argument file escapes special characters per javac specification and uses UTF-8 encoding. No impact on non-Windows platforms or builds with short command lines.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• bndtools.jfrog.io
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED -Xms1024m -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en (dns block)
• scans-in.gradle.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED -Xms1024m -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[cli] bnd build not feasible on win32</issue_title>
<issue_description>java -jar biz.aQute.bnd-7.2.0-RC11.jar -p -d build

...
[main] DEBUG aQute.bnd.build.ProjectBuilder - ignore headers & paths Bundle-Version
[main] DEBUG aQute.bnd.build.ProjectBuilder - diffpackages {}
[main] DEBUG aQute.bnd.build.ProjectBuilder - No baseline jar null
[main] DEBUG aQute.bnd.repository.maven.provider.MavenBndRepository - Put release biz.aQute.bnd:biz.aQute.bnd.annotation:7.2.0-RC11
[main] DEBUG aQute.maven.provider.MavenRepository - Release biz.aQute.bnd:biz.aQute.bnd.annotation:7.2.0-RC11 to MavenRepository [base=C:\Users\peter\.m2\repository, id=Local, release=[], snapshot=[], localOnly=true]
[main] DEBUG aQute.libg.command.Command - executing cmd: [javac, -encoding, UTF-8, -source, 17, -target, 17, -g:vars,source,lines, -d, C:/bnd/biz.aQute.bndlib/bin, -classpath, C:/Users/peter/.m2/repository/org/osgi/osgi.annotation/8.1.0/osgi.annotation-8.1.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.dto/1.0.0/org.osgi.dto-1.0.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.resource/1.0.0/org.osgi.resource-1.0.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.framework/1.8.0/org.osgi.framework-1.8.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.util.tracker/1.5.4/org.osgi.util.tracker-1.5.4.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.namespace.contract/1.0.0/org.osgi.namespace.contract-1.0.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.namespace.extender/1.0.1/org.osgi.namespace.extender-1.0.1.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.namespace.implementation/1.0.0/org.osgi.namespace.implementation-1.0.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.namespace.service/1.0.0/org.osgi.namespace.service-1.0.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.service.log/1.3.0/org.osgi.service.log-1.3.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.service.repository/1.1.0/org.osgi.service.repository-1.1.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.util.function/1.2.0/org.osgi.util.function-1.2.0.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.util.promise/1.3.0/org.osgi.util.promise-1.3.0.jar;C:/bnd/aQute.libg/bin;C:/bnd/biz.aQute.bnd.annotation/bin;C:/bnd/biz.aQute.bnd.util/generated/biz.aQute.bnd.util.jar;C:/Users/peter/.m2/repository/org/slf4j/slf4j-api/1.7.25/slf4j-api-1.7.25.jar;C:/Users/peter/.m2/repository/org/osgi/org.osgi.service.serviceloader/1.0.0/org.osgi.service.serviceloader-1.0.0.jar;C:/bnd/cnf/cache/7.2.0/Eclipse-4_30-2023-12/org.eclipse.jdt.annotation-1.2.100.v20220826-1026.jar, -sourcepath, C:/bnd/biz.aQute.bndlib/src, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/apiguardian/api/API.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/aspectj/plugin/AspectJ.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/api/ArtifactInfo.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/api/BuildInfo.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/api/OnWorkspace.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/api/package-info.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/CircularDependencyException.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/Classpath.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/Container.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/DownloadBlocker.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/ErrorDetails.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/JUnitLauncher.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/LibraryHandler.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/LoggingProgressPlugin.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/MagicBnd.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/Makefile.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/BndEditModel.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/BndEditModelHeaderClause.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/clauses/ComponentSvcReference.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/clauses/ExportedPackage.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/clauses/HeaderClause.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/clauses/ImportPattern.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/clauses/ServiceComponent.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/clauses/VersionedClause.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/conversions/CapabilityFormatter.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/conversions/CapReqFormatter.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/conversions/CollectionFormatter.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/conversions/Converter.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/conversions/DefaultBooleanFormatter.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/conversions/DefaultFormatter.java, C:/bnd/biz.aQute.bndlib/src/aQute/bnd/build/model/conversions/EEConverter.java, C:/bnd/...

</details>



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- Fixes bndtools/bnd#6996

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