java exception during first attempt to do REPL completion by TAB in sbt console on Scala 3.4.1 #20421

bjornregnell · 2024-05-16T16:15:45Z

Compiler version

Use Scala 3.4.1 and any sbt of version 1.9.8, 1.9.9, 1.10.0.

Minimized code

Start the console and type Seq. and press TAB for completion.

Output

exception caught when loading class module-info: java.lang.AssertionError: assertion failed: attempt to parse java.lang.Object from classfile

Expectation

no exception

The text was updated successfully, but these errors were encountered:

bjornregnell · 2024-05-16T16:16:35Z

Same as this issue cross-posted here on request by @smarter :
sbt/sbt#7560

As the root cause might be here and not in sbt.

smarter · 2024-05-16T16:21:32Z

module-info.class is a magic JPMS thing generated from the also magic module-info.java that doesn't behave like a regular classfile. We should not even try to load it because - is not valid in a classfile name, so it should be skipped over.

bjornregnell · 2024-05-16T16:37:37Z

So scala-cli has some smarter loading logic here? Or why does 3.4.1 work when REPL from scala-cli?

smarter · 2024-05-16T16:42:10Z

It has to do with how classpaths are setup but I don't know where the difference comes from. Running with -Ylog-classpath might give more information.

bjornregnell · 2024-05-16T16:46:53Z

bjornr@bjornix:~/tmp/console-bug
$ cat build.sbt 
scalaVersion := "3.4.1"
scalacOptions += "-Ylog-classpath"
bjornr@bjornix:~/tmp/console-bug
$ sbt console
[info] welcome to sbt 1.9.9 (Eclipse Adoptium Java 17.0.6)
[info] loading project definition from /home/bjornr/tmp/console-bug/project
[info] loading settings for project console-bug from build.sbt ...
[info] set current project to console-bug (in build file:/home/bjornr/tmp/console-bug/)
Classpath built from (Setting(-bootclasspath,Override location of bootstrap class files.,,,None,,List(--boot-class-path),List(),false,None) Setting(-classpath,Specify where to find user class files.,.,,None,,List(-cp, --class-path),List(),false,None) Setting(-Ylog-classpath,Output information about what classpath is being applied.,false,,None,,List(),List(),false,None) Setting(-Ycook-docs,Cook the documentation (type check `@usecase`, etc.),false,,None,,List(-Ycook-comments),List(),false,None) Setting(-Yread-docs,Read documentation from tasty.,false,,None,,List(),List(),false,None))
Defaults: object Defaults {
  scalaHome            = 
  javaBootClassPath    = 
  scalaLibDirFound     = None
  scalaLibFound        = 
  scalaBootClassPath   = 
  scalaPluginPath      = misc/scala-devel/plugins
}
Calculated: object Calculated {
  scalaHome            = 
  javaBootClassPath    = 
  javaExtDirs          = 
  javaUserClassPath    = 
  useJavaClassPath     = false
  scalaBootClassPath   = 
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-library_3/3.4.1/scala3-library_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-library/2.13.12/scala-library-2.13.12.jar
  scalaExtDirs         = /home/bjornr/.sbt/1.0/java9-rt-ext-eclipse_adoptium_17_0_6
  userClassPath        = 
/home/bjornr/tmp/console-bug/target/scala-3.4.1/classes
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-compiler_3/3.4.1/scala3-compiler_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-interfaces/3.4.1/scala3-interfaces-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/tasty-core_3/3.4.1/tasty-core_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/modules/scala-asm/9.6.0-scala-1/scala-asm-9.6.0-scala-1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-sbt/compiler-interface/1.9.6/compiler-interface-1.9.6.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-reader/3.19.0/jline-reader-3.19.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-terminal/3.19.0/jline-terminal-3.19.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-terminal-jna/3.19.0/jline-terminal-jna-3.19.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-sbt/util-interface/1.9.8/util-interface-1.9.8.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/net/java/dev/jna/jna/5.3.1/jna-5.3.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scaladoc_3/3.4.1/scaladoc_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-tasty-inspector_3/3.4.1/scala3-tasty-inspector_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark/0.62.2/flexmark-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-ast/0.62.2/flexmark-util-ast-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-data/0.62.2/flexmark-util-data-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-html/0.62.2/flexmark-util-html-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-anchorlink/0.62.2/flexmark-ext-anchorlink-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-autolink/0.62.2/flexmark-ext-autolink-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-emoji/0.62.2/flexmark-ext-emoji-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-gfm-strikethrough/0.62.2/flexmark-ext-gfm-strikethrough-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-gfm-tasklist/0.62.2/flexmark-ext-gfm-tasklist-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-wikilink/0.62.2/flexmark-ext-wikilink-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-tables/0.62.2/flexmark-ext-tables-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-yaml-front-matter/0.62.2/flexmark-ext-yaml-front-matter-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/nl/big-o/liqp/0.8.2/liqp-0.8.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jsoup/jsoup/1.17.2/jsoup-1.17.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/dataformat/jackson-dataformat-yaml/2.15.1/jackson-dataformat-yaml-2.15.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-builder/0.62.2/flexmark-util-builder-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-collection/0.62.2/flexmark-util-collection-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-dependency/0.62.2/flexmark-util-dependency-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-format/0.62.2/flexmark-util-format-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-misc/0.62.2/flexmark-util-misc-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-sequence/0.62.2/flexmark-util-sequence-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-visitor/0.62.2/flexmark-util-visitor-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jetbrains/annotations/15.0/annotations-15.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util/0.62.2/flexmark-util-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/nibor/autolink/autolink/0.6.0/autolink-0.6.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-jira-converter/0.62.2/flexmark-jira-converter-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/antlr/antlr4-runtime/4.7.2/antlr4-runtime-4.7.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-annotations/2.15.1/jackson-annotations-2.15.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.15.1/jackson-core-2.15.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-databind/2.15.1/jackson-databind-2.15.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.12.1/jackson-datatype-jsr310-2.12.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/ua/co/k/strftime4j/1.0.5/strftime4j-1.0.5.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/yaml/snakeyaml/2.0/snakeyaml-2.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-options/0.62.2/flexmark-util-options-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-ins/0.62.2/flexmark-ext-ins-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-superscript/0.62.2/flexmark-ext-superscript-0.62.2.jar
  sourcePath           = 
}
After java boot/extdirs classpath has 51 entries:
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-library_3/3.4.1/scala3-library_3-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-library/2.13.12/scala-library-2.13.12.jar,None)
  ZipArchiveClassPath(/home/bjornr/.sbt/1.0/java9-rt-ext-eclipse_adoptium_17_0_6/rt.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-compiler_3/3.4.1/scala3-compiler_3-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-interfaces/3.4.1/scala3-interfaces-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/tasty-core_3/3.4.1/tasty-core_3-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/modules/scala-asm/9.6.0-scala-1/scala-asm-9.6.0-scala-1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-sbt/compiler-interface/1.9.6/compiler-interface-1.9.6.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-reader/3.19.0/jline-reader-3.19.0.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-terminal/3.19.0/jline-terminal-3.19.0.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-terminal-jna/3.19.0/jline-terminal-jna-3.19.0.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-sbt/util-interface/1.9.8/util-interface-1.9.8.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/net/java/dev/jna/jna/5.3.1/jna-5.3.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scaladoc_3/3.4.1/scaladoc_3-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-tasty-inspector_3/3.4.1/scala3-tasty-inspector_3-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark/0.62.2/flexmark-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-ast/0.62.2/flexmark-util-ast-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-data/0.62.2/flexmark-util-data-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-html/0.62.2/flexmark-util-html-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-anchorlink/0.62.2/flexmark-ext-anchorlink-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-autolink/0.62.2/flexmark-ext-autolink-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-emoji/0.62.2/flexmark-ext-emoji-0.62.2.jar,None)
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  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-gfm-tasklist/0.62.2/flexmark-ext-gfm-tasklist-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-wikilink/0.62.2/flexmark-ext-wikilink-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-tables/0.62.2/flexmark-ext-tables-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-yaml-front-matter/0.62.2/flexmark-ext-yaml-front-matter-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/nl/big-o/liqp/0.8.2/liqp-0.8.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jsoup/jsoup/1.17.2/jsoup-1.17.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/dataformat/jackson-dataformat-yaml/2.15.1/jackson-dataformat-yaml-2.15.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-builder/0.62.2/flexmark-util-builder-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-collection/0.62.2/flexmark-util-collection-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-dependency/0.62.2/flexmark-util-dependency-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-format/0.62.2/flexmark-util-format-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-misc/0.62.2/flexmark-util-misc-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-sequence/0.62.2/flexmark-util-sequence-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-visitor/0.62.2/flexmark-util-visitor-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jetbrains/annotations/15.0/annotations-15.0.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util/0.62.2/flexmark-util-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/nibor/autolink/autolink/0.6.0/autolink-0.6.0.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-jira-converter/0.62.2/flexmark-jira-converter-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/antlr/antlr4-runtime/4.7.2/antlr4-runtime-4.7.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-annotations/2.15.1/jackson-annotations-2.15.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.15.1/jackson-core-2.15.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-databind/2.15.1/jackson-databind-2.15.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.12.1/jackson-datatype-jsr310-2.12.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/ua/co/k/strftime4j/1.0.5/strftime4j-1.0.5.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/yaml/snakeyaml/2.0/snakeyaml-2.0.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-options/0.62.2/flexmark-util-options-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-ins/0.62.2/flexmark-ext-ins-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-superscript/0.62.2/flexmark-ext-superscript-0.62.2.jar,None)
Welcome to Scala 3.4.1 (17.0.6, Java OpenJDK 64-Bit Server VM).
Type in expressions for evaluation. Or try :help.
                                                                                                                                                                                         
scala> Seq.Classpath built from (Setting(-bootclasspath,Override location of bootstrap class files.,,,None,,List(--boot-class-path),List(),false,None) Setting(-classpath,Specify where to find user class files.,.,,None,,List(-cp, --class-path),List(),false,None) Setting(-d,Destination for generated classfiles.,.,directory|jar,None,,List(),List(),false,None) Setting(-Ylog-classpath,Output information about what classpath is being applied.,false,,None,,List(),List(),false,None) Setting(-Ycook-docs,Cook the documentation (type check `@usecase`, etc.),false,,None,,List(-Ycook-comments),List(),false,None) Setting(-Yread-docs,Read documentation from tasty.,false,,None,,List(),List(),false,None))
Defaults: object Defaults {
  scalaHome            = 
  javaBootClassPath    = 
  scalaLibDirFound     = None
  scalaLibFound        = 
  scalaBootClassPath   = 
  scalaPluginPath      = misc/scala-devel/plugins
}
Calculated: object Calculated {
  scalaHome            = 
  javaBootClassPath    = 
  javaExtDirs          = 
  javaUserClassPath    = 
  useJavaClassPath     = false
  scalaBootClassPath   = 
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-library_3/3.4.1/scala3-library_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala-library/2.13.12/scala-library-2.13.12.jar
  scalaExtDirs         = /home/bjornr/.sbt/1.0/java9-rt-ext-eclipse_adoptium_17_0_6
  userClassPath        = 
/home/bjornr/tmp/console-bug/target/scala-3.4.1/classes
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-compiler_3/3.4.1/scala3-compiler_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-interfaces/3.4.1/scala3-interfaces-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/tasty-core_3/3.4.1/tasty-core_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/modules/scala-asm/9.6.0-scala-1/scala-asm-9.6.0-scala-1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-sbt/compiler-interface/1.9.6/compiler-interface-1.9.6.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-reader/3.19.0/jline-reader-3.19.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-terminal/3.19.0/jline-terminal-3.19.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-terminal-jna/3.19.0/jline-terminal-jna-3.19.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-sbt/util-interface/1.9.8/util-interface-1.9.8.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/net/java/dev/jna/jna/5.3.1/jna-5.3.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scaladoc_3/3.4.1/scaladoc_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-tasty-inspector_3/3.4.1/scala3-tasty-inspector_3-3.4.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark/0.62.2/flexmark-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-ast/0.62.2/flexmark-util-ast-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-data/0.62.2/flexmark-util-data-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-html/0.62.2/flexmark-util-html-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-anchorlink/0.62.2/flexmark-ext-anchorlink-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-autolink/0.62.2/flexmark-ext-autolink-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-emoji/0.62.2/flexmark-ext-emoji-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-gfm-strikethrough/0.62.2/flexmark-ext-gfm-strikethrough-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-gfm-tasklist/0.62.2/flexmark-ext-gfm-tasklist-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-wikilink/0.62.2/flexmark-ext-wikilink-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-tables/0.62.2/flexmark-ext-tables-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-yaml-front-matter/0.62.2/flexmark-ext-yaml-front-matter-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/nl/big-o/liqp/0.8.2/liqp-0.8.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jsoup/jsoup/1.17.2/jsoup-1.17.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/dataformat/jackson-dataformat-yaml/2.15.1/jackson-dataformat-yaml-2.15.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-builder/0.62.2/flexmark-util-builder-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-collection/0.62.2/flexmark-util-collection-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-dependency/0.62.2/flexmark-util-dependency-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-format/0.62.2/flexmark-util-format-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-misc/0.62.2/flexmark-util-misc-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-sequence/0.62.2/flexmark-util-sequence-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-visitor/0.62.2/flexmark-util-visitor-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jetbrains/annotations/15.0/annotations-15.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util/0.62.2/flexmark-util-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/nibor/autolink/autolink/0.6.0/autolink-0.6.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-jira-converter/0.62.2/flexmark-jira-converter-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/antlr/antlr4-runtime/4.7.2/antlr4-runtime-4.7.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-annotations/2.15.1/jackson-annotations-2.15.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.15.1/jackson-core-2.15.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-databind/2.15.1/jackson-databind-2.15.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.12.1/jackson-datatype-jsr310-2.12.1.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/ua/co/k/strftime4j/1.0.5/strftime4j-1.0.5.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/yaml/snakeyaml/2.0/snakeyaml-2.0.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-options/0.62.2/flexmark-util-options-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-ins/0.62.2/flexmark-ext-ins-0.62.2.jar
/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-superscript/0.62.2/flexmark-ext-superscript-0.62.2.jar
  sourcePath           = 
}
After java boot/extdirs classpath has 51 entries:
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  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-compiler_3/3.4.1/scala3-compiler_3-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-interfaces/3.4.1/scala3-interfaces-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/tasty-core_3/3.4.1/tasty-core_3-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/modules/scala-asm/9.6.0-scala-1/scala-asm-9.6.0-scala-1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-sbt/compiler-interface/1.9.6/compiler-interface-1.9.6.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-reader/3.19.0/jline-reader-3.19.0.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-terminal/3.19.0/jline-terminal-3.19.0.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/jline/jline-terminal-jna/3.19.0/jline-terminal-jna-3.19.0.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-sbt/util-interface/1.9.8/util-interface-1.9.8.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/net/java/dev/jna/jna/5.3.1/jna-5.3.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scaladoc_3/3.4.1/scaladoc_3-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/org/scala-lang/scala3-tasty-inspector_3/3.4.1/scala3-tasty-inspector_3-3.4.1.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark/0.62.2/flexmark-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-ast/0.62.2/flexmark-util-ast-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-data/0.62.2/flexmark-util-data-0.62.2.jar,None)
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  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-anchorlink/0.62.2/flexmark-ext-anchorlink-0.62.2.jar,None)
  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-ext-autolink/0.62.2/flexmark-ext-autolink-0.62.2.jar,None)
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  ZipArchiveClassPath(/home/bjornr/.cache/coursier/v1/https/repo1.maven.org/maven2/com/vladsch/flexmark/flexmark-util-visitor/0.62.2/flexmark-util-visitor-0.62.2.jar,None)
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exception caught when loading class module-info: java.lang.AssertionError: assertion failed: attempt to parse java.lang.Object from classfile

bjornregnell · 2024-05-16T16:48:38Z

Running with -Ylog-classpath might give more information.

Indeed more information... Sorry for spamming many lines here.

bjornregnell · 2024-05-16T16:49:43Z

@smarter can you reproduce it on your machine?
(Just type Seq. in sbt console and press TAB and it should show the exception)

SethTisue · 2024-05-20T21:45:01Z

@bishabosha is it possible this has to do with the pipelining changes somehow...? didn't "module-info" come up in that context not long ago?

smarter · 2024-05-22T16:30:22Z

@smarter can you reproduce it on your machine?

Yes.

bjornregnell · 2024-06-13T11:01:17Z

The only workaround I have found so far: Revert to Scala version 3.3.3

It does not seem to help to revert to older sbt such as 1.9.7, because with scala 3.4.2 the repl craches jline with java.lang.NoSuchMethodError: 'org.jline.utils.AttributedString org.jline.utils.AttributedString.fromAnsi(java.lang.String, java.util.List, java.lang.String, java.lang.String)' when sbt console using 3.4.2 + older sbt (tested with OpenJDK 17).

mpollmeier · 2024-06-13T17:26:16Z

Thanks for the investigation so far! The information is all here, but just as a brief summary for users who found this issue and are just looking for a quick&dirty workaround:
You can either revert to Scala 3.3.3 or get rid of all module-info.class files from your classpath. Depending on how you package your app, you could post-process it with something equivalent to zip -d foo.jar module-info.class.

A minified reproduction of the issue without sbt:

git clone https://github.com/mpollmeier/scala-repl-pp.git
cd scala-repl-pp
sbt stage
./srp --dep org.projectlombok:lombok:1.18.32

scala> Seq.<TAB>

n.b.1) scala-repl-pp wraps the stock repl
n.b.2) lombok is simply one example for a jar that contains a module-info.class

Looking ahead: +1 for @smarter's comment to simply ignore anything from module-info.class

on stage: remove module-info.class from dependency jars - a hacky workaround for a scala3 compiler bug: scala/scala3#20421 Fixes #4625

mpollmeier · 2024-07-22T14:16:01Z

In case anyone else is in dire need for a hacky workaround: in joern's sbt build we post-process the staged dependencies and remove all /module-info.class from the jars: https://github.com/joernio/joern/blob/bd38a15ada2f09098265c5e4ca44ba9959f808af/joern-cli/build.sbt#L134-L154

bjornregnell added itype:bug stat:needs triage Every issue needs to have an "area" and "itype" label labels May 16, 2024

This was referenced May 16, 2024

Avoid forcing whole package when using -experimental #20409

Merged

java exception during first attempt to do REPL completion by TAB in sbt console on Scala 3.4.1 sbt/sbt#7560

Closed

smarter added area:classpath and removed stat:needs triage Every issue needs to have an "area" and "itype" label labels May 16, 2024

Trolldemorted mentioned this issue May 31, 2024

[Bug] Joern tab completion can freeze joern and print "exception caught when loading module class module-info$: java.lang.AssertionError: assertion failed: attempt to parse java.lang.Object from classfile" joernio/joern#4625

Closed

e45lee mentioned this issue Jun 21, 2024

Compiling standard library with -experimental causes AssertionError #20730

Open

mpollmeier added a commit to joernio/joern that referenced this issue Jul 22, 2024

workaround for scala completion bug

d7c1096

on stage: remove module-info.class from dependency jars - a hacky workaround for a scala3 compiler bug: scala/scala3#20421 Fixes #4625

mpollmeier mentioned this issue Jul 22, 2024

workaround for scala completion bug joernio/joern#4791

Merged

mpollmeier added a commit to joernio/joern that referenced this issue Jul 22, 2024

workaround for scala completion bug (#4791)

bd38a15

on stage: remove module-info.class from dependency jars - a hacky workaround for a scala3 compiler bug: scala/scala3#20421 Fixes #4625

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java exception during first attempt to do REPL completion by TAB in sbt console on Scala 3.4.1 #20421

java exception during first attempt to do REPL completion by TAB in sbt console on Scala 3.4.1 #20421

bjornregnell commented May 16, 2024

bjornregnell commented May 16, 2024

smarter commented May 16, 2024 •

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bjornregnell commented May 16, 2024

smarter commented May 16, 2024

bjornregnell commented May 16, 2024

bjornregnell commented May 16, 2024

bjornregnell commented May 16, 2024

SethTisue commented May 20, 2024

smarter commented May 22, 2024

bjornregnell commented Jun 13, 2024 •

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mpollmeier commented Jun 13, 2024

mpollmeier commented Jul 22, 2024

java exception during first attempt to do REPL completion by TAB in sbt console on Scala 3.4.1 #20421

java exception during first attempt to do REPL completion by TAB in sbt console on Scala 3.4.1 #20421

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bjornregnell commented May 16, 2024

Compiler version

Minimized code

Output

Expectation

bjornregnell commented May 16, 2024

smarter commented May 16, 2024 • edited Loading

bjornregnell commented May 16, 2024

smarter commented May 16, 2024

bjornregnell commented May 16, 2024

bjornregnell commented May 16, 2024

bjornregnell commented May 16, 2024

SethTisue commented May 20, 2024

smarter commented May 22, 2024

bjornregnell commented Jun 13, 2024 • edited Loading

mpollmeier commented Jun 13, 2024

mpollmeier commented Jul 22, 2024

smarter commented May 16, 2024 •

edited

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bjornregnell commented Jun 13, 2024 •

edited

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