JavaResourceJar broken when enabling path mapping (--experimental_output_paths=strip)

[malt3]

Description of the bug:

Without path mapping, a java_library with no srcs but resources would result in an action with mnemonic JavaResourceJar.
When enabling path mapping, the build fails:

bazel build :foo -s
INFO: Analyzed target //:foo (0 packages loaded, 0 targets configured).
SUBCOMMAND: # //:foo [action 'Building libfoo-class.jar ()', configuration: 79f4dcc0afed0cf3698fedd0369bedac590bfd9d6152eefc68c5e3060c12cef4, execution platform: @@platforms//host:host, mnemonic: Javac]
(cd /REDACTED/execroot/_main && \
  exec env - \
    PATH=/bin:/usr/bin:/usr/local/bin \
  external/rules_java~~toolchains~remotejdk21_linux/bin/java '--add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.resources=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED' '--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED' '--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED' '--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED' '--add-opens=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED' '--add-opens=java.base/java.nio=ALL-UNNAMED' '--add-opens=java.base/java.lang=ALL-UNNAMED' '-Dsun.io.useCanonCaches=false' -XX:-CompactStrings -Xlog:disable '-Xlog:all=warning:stderr:uptime,level,tags' -jar external/rules_java~~toolchains~remote_java_tools/java_tools/JavaBuilder_deploy.jar @bazel-out/cfg/bin/libfoo-class.jar-0.params @bazel-out/cfg/bin/libfoo-class.jar-1.params)
# Configuration: 79f4dcc0afed0cf3698fedd0369bedac590bfd9d6152eefc68c5e3060c12cef4
# Execution platform: @@platforms//host:host
ERROR: /REDACTED/BUILD:149:13: output 'libfoo-class.jar' was not created
ERROR: /REDACTED/BUILD:149:13: output 'libfoo-native-header.jar' was not created
ERROR: /REDACTED/BUILD:149:13: output 'libfoo.jar_manifest_proto' was not created
ERROR: /REDACTED/BUILD:149:13: Building libfoo-class.jar () failed: not all outputs were created or valid
Target //:foo failed to build

Without path mapping, this is the output:

bazel build :foo -s
INFO: Analyzed target //:foo (0 packages loaded, 6212 targets configured).
SUBCOMMAND: # @@rules_java~//toolchains:platformclasspath [action 'JavaToolchainCompileClasses external/rules_java~/toolchains/platformclasspath_classes', configuration: a39759fe87cfd0cdf3036e15136e0419b560858bafad55049fd08d2252aa2b37, execution platform: @@platforms//host:host, mnemonic: JavaToolchainCompileClasses]
(cd /REDACTED/execroot/_main && \
  exec env - \
  external/rules_java~~toolchains~remotejdk11_linux/bin/javac -source 8 -target 8 -Xlint:-options -J-XX:-UsePerfData -d bazel-out/k8-dbg/bin/external/rules_java~/toolchains/platformclasspath_classes external/rules_java~/toolchains/DumpPlatformClassPath.java)
# Configuration: a39759fe87cfd0cdf3036e15136e0419b560858bafad55049fd08d2252aa2b37
# Execution platform: @@platforms//host:host
SUBCOMMAND: # @@rules_java~//toolchains:platformclasspath [action 'JavaToolchainCompileBootClasspath external/rules_java~/toolchains/platformclasspath.jar', configuration: a39759fe87cfd0cdf3036e15136e0419b560858bafad55049fd08d2252aa2b37, execution platform: @@platforms//host:host, mnemonic: JavaToolchainCompileBootClasspath]
(cd /REDACTED/execroot/_main && \
  exec env - \
  external/rules_java~~toolchains~remotejdk11_linux/bin/java -XX:+IgnoreUnrecognizedVMOptions -XX:-UsePerfData '--add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.platform=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED' -cp bazel-out/k8-dbg/bin/external/rules_java~/toolchains/platformclasspath_classes DumpPlatformClassPath bazel-out/k8-dbg/bin/external/rules_java~/toolchains/platformclasspath.jar external/rules_java~~toolchains~local_jdk)
# Configuration: a39759fe87cfd0cdf3036e15136e0419b560858bafad55049fd08d2252aa2b37
# Execution platform: @@platforms//host:host
SUBCOMMAND: # //:foo [action 'Building libfoo-class.jar ()', configuration: a39759fe87cfd0cdf3036e15136e0419b560858bafad55049fd08d2252aa2b37, execution platform: @@platforms//host:host, mnemonic: Javac]
(cd /REDACTED/execroot/_main && \
  exec env - \
    PATH=/bin:/usr/bin:/usr/local/bin \
  external/rules_java~~toolchains~remotejdk21_linux/bin/java '--add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.resources=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED' '--add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED' '--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED' '--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED' '--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED' '--add-opens=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED' '--add-opens=java.base/java.nio=ALL-UNNAMED' '--add-opens=java.base/java.lang=ALL-UNNAMED' '-Dsun.io.useCanonCaches=false' -XX:-CompactStrings -Xlog:disable '-Xlog:all=warning:stderr:uptime,level,tags' -jar external/rules_java~~toolchains~remote_java_tools/java_tools/JavaBuilder_deploy.jar @bazel-out/k8-dbg/bin/libfoo-class.jar-0.params @bazel-out/k8-dbg/bin/libfoo-class.jar-1.params)
# Configuration: a39759fe87cfd0cdf3036e15136e0419b560858bafad55049fd08d2252aa2b37
# Execution platform: @@platforms//host:host
SUBCOMMAND: # //:foo [action 'Building Java resource jar', configuration: a39759fe87cfd0cdf3036e15136e0419b560858bafad55049fd08d2252aa2b37, execution platform: @@platforms//host:host, mnemonic: JavaResourceJar]
(cd /REDACTED/execroot/_main && \
  exec env - \
    PATH=/bin:/usr/bin:/usr/local/bin \
  external/rules_java~~toolchains~remote_java_tools_linux/java_tools/src/tools/singlejar/singlejar_local --normalize --dont_change_compression --exclude_build_data --output bazel-out/k8-dbg/bin/libfoo.jar --sources bazel-out/k8-dbg/bin/libfoo-class.jar --resources file.txt)
# Configuration: a39759fe87cfd0cdf3036e15136e0419b560858bafad55049fd08d2252aa2b37
# Execution platform: @@platforms//host:host
INFO: Found 1 target...
Target //:foo up-to-date:
  bazel-bin/libfoo.jar
INFO: Elapsed time: 2.742s, Critical Path: 1.98s
INFO: 5 processes: 1 internal, 3 linux-sandbox, 1 worker.
INFO: Build completed successfully, 5 total actions

Which category does this issue belong to?

Java Rules

What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

BUILD.bazel:

java_library(
  name = "foo",
  resources = ["file.txt"],
)

file.txt:

this is a test

.bazelrc:

common --experimental_output_paths=strip

Which operating system are you running Bazel on?

Linux

What is the output of bazel info release?

release 7.3.0

If bazel info release returns development version or (@non-git), tell us how you built Bazel.

No response

What's the output of git remote get-url origin; git rev-parse HEAD ?

n/a

If this is a regression, please try to identify the Bazel commit where the bug was introduced with bazelisk --bisect.

This was most likely introduced with Bazel 7 (in this PR #18098, commit 29f1db2)

Have you found anything relevant by searching the web?

No response

Any other information, logs, or outputs that you want to share?

No response

[malt3]

I since learned that it works using --strategy=Javac=sandboxed, so this is likely just an error on my side.

The document about the state of path mapping also has this sentence:

the default Java toolchain doesn't enable support for multiplex sandboxing yet

So I guess this works as intended.