I hope this wasn't covered someplace else or maybe is some kind of JDK/Java
configuration issues in my netbeans setup but....
With the following java in place...
java -version
openjdk version "13" 2019-09-17
OpenJDK Runtime Environment (build 13+33)
OpenJDK 64-Bit Server VM (build 13+33, mixed mode, sharing)
While trying to compile the latest netbeans from github as of 12/7/2019 of
the master, I got a few compilation errors relating to FileSystem class
methods like the following:
generate-sources-internal:
[pcompile] Generating 6 resource files to
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\build\gensrc\jdk.jshell
[mkdir] Created dir:
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\build\nb
[javac] Compiling 593 source files to
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\build\nb
[javac] warning: [options] bootstrap class path not set in conjunction
with -source 8
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\file\JavacFileManager.java:519:
error: reference to newFileSystem is ambiguous
[javac] this.fileSystem =
FileSystems.newFileSystem(archivePath, null);
[javac] ^
[javac] both method newFileSystem(Path,ClassLoader) in FileSystems
and method newFileSystem(Path,Map<String,?>) in FileSystems match
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\file\Locations.java:383:
error: reference to newFileSystem is ambiguous
[javac] FileSystems.newFileSystem(file,
null).close();
[javac] ^
[javac] both method newFileSystem(Path,ClassLoader) in FileSystems
and method newFileSystem(Path,Map<String,?>) in FileSystems match
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\model\AnnotationProxyMaker.java:89:
warning: AnnotationParser is internal proprietary API and may be removed in
a future release
[javac] return AnnotationParser.annotationForMap(annoType,
[javac] ^
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\model\AnnotationProxyMaker.java:168:
warning: ExceptionProxy is internal proprietary API and may be removed in a
future release
[javac] if (!(value instanceof ExceptionProxy) &&
[javac] ^
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\model\AnnotationProxyMaker.java:169:
warning: AnnotationType is internal proprietary API and may be removed in a
future release
[javac]
!AnnotationType.invocationHandlerReturnType(returnClass)
[javac] ^
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\model\AnnotationProxyMaker.java:205:
warning: ExceptionProxy is internal proprietary API and may be removed in a
future release
[javac] if (value == null || value instanceof
ExceptionProxy) {
[javac] ^
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\model\AnnotationProxyMaker.java:229:
warning: EnumConstantNotPresentExceptionProxy is internal proprietary API
and may be removed in a future release
[javac] value = new
EnumConstantNotPresentExceptionProxy(
[javac] ^
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\model\AnnotationProxyMaker.java:259:
warning: ExceptionProxy is internal proprietary API and may be removed in a
future release
[javac] class AnnotationTypeMismatchExceptionProxy extends
ExceptionProxy {
[javac] ^
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\model\AnnotationProxyMaker.java:283:
warning: ExceptionProxy is internal proprietary API and may be removed in a
future release
[javac] private static final class MirroredTypeExceptionProxy
extends ExceptionProxy {
[javac]
^
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\model\AnnotationProxyMaker.java:326:
warning: ExceptionProxy is internal proprietary API and may be removed in a
future release
[javac] private static final class MirroredTypesExceptionProxy
extends ExceptionProxy {
[javac]
^
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\platform\JDKPlatformProvider.java:80:
error: reference to newFileSystem is ambiguous
[javac] try (FileSystem fs =
FileSystems.newFileSystem(ctSymFile, null);
[javac] ^
[javac] both method newFileSystem(Path,ClassLoader) in FileSystems
and method newFileSystem(Path,Map<String,?>) in FileSystems match
[javac]
C:\src\git\netbeans.eric\netbeans\nbbuild\build\langtools\src\jdk.compiler\share\classes\com\sun\tools\javac\platform\JDKPlatformProvider.java:120:
error: reference to newFileSystem is ambiguous
[javac] ctSym2FileSystem.put(file, fs =
FileSystems.newFileSystem(file, null));
[javac]
^
[javac] both method newFileSystem(Path,ClassLoader) in FileSystems
and method newFileSystem(Path,Map<String,?>) in FileSystems match
[javac] 4 errors
[javac] 9 warnings
BUILD FAILED
Based on looking around I find with newer versions of java has multiple
FileSystem methods defined so this requires casting the second parameter to
ClassLoader class as described Java 13 release notes[1]
I thought...this seems like a simple fix (adding a cast) which maybe I
could try to contribute but after making the change and trying to build it
again, the same errors occur. I came to realize these files are copied
over during build setup, I find the files in question are in the langtools
subfolder which appears to be uncompressed from the external
langtools-9.zip file present so those fixes don't go through.
Assume this is a "downstream" (langtools) sort of change needed (maybe from
java context) which I believe the langtools is managed [2]. But not sure
of this.
Anyone have any ideas on this?
References
[1] https://www.oracle.com/technetwork/java/13-relnote-issues-5460548.html
[2]
https://github.com/openjdk/jdk13/tree/master/make/langtools/netbeans/langtools
Eric Bresie
[email protected]
