javadoc/javac is experiencing java.nio.file.ClosedFileSystemException

as shown by this fragment of a stack trace.


java.nio.file.ClosedFileSystemException
at jdk.nio.zipfs.ZipFileSystem.ensureOpen(jdk.zipfs@9-internal/ZipFileSystem.java:1104)
at jdk.nio.zipfs.ZipFileSystem.newInputStream(jdk.zipfs@9-internal/ZipFileSystem.java:552)
at jdk.nio.zipfs.ZipPath.newInputStream(jdk.zipfs@9-internal/ZipPath.java:630)
at jdk.nio.zipfs.ZipFileSystemProvider.newInputStream(jdk.zipfs@9-internal/ZipFileSystemProvider.java:266)
at java.nio.file.Files.newInputStream(java.base@9-internal/Files.java:152)
at com.sun.tools.javac.file.PathFileObject.openInputStream(jdk.compiler@9-internal/PathFileObject.java:435)
at com.sun.tools.javac.jvm.ClassReader.readClassFile(jdk.compiler@9-internal/ClassReader.java:2526)
at com.sun.tools.javac.code.ClassFinder.fillIn(jdk.compiler@9-internal/ClassFinder.java:358)
at com.sun.tools.javac.code.ClassFinder.complete(jdk.compiler@9-internal/ClassFinder.java:295)
at com.sun.tools.javac.code.ClassFinder.access$000(jdk.compiler@9-internal/ClassFinder.java:75)
at com.sun.tools.javac.code.ClassFinder$1.complete(jdk.compiler@9-internal/ClassFinder.java:171)
at com.sun.tools.javac.code.Symbol.complete(jdk.compiler@9-internal/Symbol.java:601)
at com.sun.tools.javac.code.Symbol$ClassSymbol.complete(jdk.compiler@9-internal/Symbol.java:1222)
at com.sun.tools.javac.code.Symbol$ClassSymbol.flags(jdk.compiler@9-internal/Symbol.java:1156)
at com.sun.tools.javadoc.ClassDocImpl.getFlags(jdk.javadoc@9-internal/ClassDocImpl.java:130)
at com.sun.tools.javadoc.ClassDocImpl.isAnnotationType(jdk.javadoc@9-internal/ClassDocImpl.java:144)
at com.sun.tools.javadoc.DocEnv.isAnnotationType(jdk.javadoc@9-internal/DocEnv.java:623)
at com.sun.tools.javadoc.DocEnv.getClassDoc(jdk.javadoc@9-internal/DocEnv.java:596)
at com.sun.tools.javadoc.DocEnv.lookupClass(jdk.javadoc@9-internal/DocEnv.java:179)
at com.sun.tools.javadoc.RootDocImpl.classNamed(jdk.javadoc@9-internal/RootDocImpl.java:218)