bazel: Compiler exception running coverage: ClassNotFoundException: org.jacoco.agent.rt.internal_b0d6a23.Offline

“bazel coverage” fails at 0.14.1 and 4001ddd with a compiler exception. It happens with and without --experimental_java_coverage, and it seems to be triggered by instrumentation of an error-prone check.

Here’s the scenario:

# //src/com/corp/util/i18n/BUILD
java_library(
    name = "i18n",
    srcs = glob(["*.java"]),
    exported_plugins = [
        "//src/com/corp/util/i18n/bugpatterns",
    ],
   ...

and

# //src/com/corp/util/i18n/bugpatterns/BUILD
java_plugin(
    name = "bugpatterns",
    srcs = glob(["*.java"]),
   ...

Here’s the full error:

$ ../bazel/bazel-bin/src/bazel coverage test/com/corp/util/...

ERROR: /Users/robfig/alpha/src/com/corp/util/callable/BUILD:3:1: Building src/com/corp/util/callable/libcallable.jar (1 source file) failed (Exit 1): java failed: error executing command
  (cd /private/var/tmp/_bazel_robfig/1db08896ecff7e5e96a745981c3b77e6/execroot/corp && \
  exec env - \
    LC_CTYPE=en_US.UTF-8 \
  external/local_jdk/bin/java -Xbootclasspath/p:external/bazel_tools/third_party/java/jdk/langtools/javac-9+181-r4173-1.jar -jar external/bazel_tools/tools/jdk/JavaBuilder_deploy.jar @bazel-out/darwin-fastbuild/bin/src/com/corp/util/callable/libcallable.jar-2.params)
An exception has occurred in the compiler ((version info not available)). Please file a bug against the Java compiler via the Java bug reporting page (http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com) for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.util.ServiceConfigurationError: com.google.errorprone.bugpatterns.BugChecker: Provider com.corp.util.i18n.bugpatterns.I18nNonConstant could not be instantiated
	at java.util.ServiceLoader.fail(ServiceLoader.java:232)
	at java.util.ServiceLoader.access$100(ServiceLoader.java:185)
	at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384)
	at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
	at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
	at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:47)
	at com.google.errorprone.scanner.ScannerSupplier.fromBugCheckerClasses(ScannerSupplier.java:71)
	at com.google.errorprone.ErrorPronePlugins.loadPlugins(ErrorPronePlugins.java:47)
	at com.google.errorprone.ErrorProneAnalyzer.lambda$scansPlugins$0(ErrorProneAnalyzer.java:76)
	at com.google.common.base.Suppliers$NonSerializableMemoizingSupplier.get(Suppliers.java:164)
	at com.google.errorprone.ErrorProneAnalyzer.finished(ErrorProneAnalyzer.java:152)
	at com.google.devtools.build.buildjar.javac.plugins.errorprone.ErrorPronePlugin.postFlow(ErrorPronePlugin.java:110)
	at com.google.devtools.build.buildjar.javac.BlazeJavaCompiler.flow(BlazeJavaCompiler.java:112)
	at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1363)
	at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:959)
	at com.sun.tools.javac.api.JavacTaskImpl.lambda$doCall$0(JavacTaskImpl.java:100)
	at com.sun.tools.javac.api.JavacTaskImpl.handleExceptions(JavacTaskImpl.java:142)
	at com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:96)
	at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:90)
	at com.google.devtools.build.buildjar.javac.BlazeJavacMain.compile(BlazeJavacMain.java:110)
	at com.google.devtools.build.buildjar.SimpleJavaLibraryBuilder$2.invokeJavac(SimpleJavaLibraryBuilder.java:121)
	at com.google.devtools.build.buildjar.ReducedClasspathJavaLibraryBuilder.compileSources(ReducedClasspathJavaLibraryBuilder.java:54)
	at com.google.devtools.build.buildjar.SimpleJavaLibraryBuilder.compileJavaLibrary(SimpleJavaLibraryBuilder.java:124)
	at com.google.devtools.build.buildjar.SimpleJavaLibraryBuilder.run(SimpleJavaLibraryBuilder.java:132)
	at com.google.devtools.build.buildjar.BazelJavaBuilder.processRequest(BazelJavaBuilder.java:105)
	at com.google.devtools.build.buildjar.BazelJavaBuilder.runPersistentWorker(BazelJavaBuilder.java:67)
	at com.google.devtools.build.buildjar.BazelJavaBuilder.main(BazelJavaBuilder.java:45)
Caused by: java.lang.NoClassDefFoundError: org/jacoco/agent/rt/internal_b0d6a23/Offline
	at com.corp.util.i18n.bugpatterns.I18nNonConstant.$jacocoInit(I18nNonConstant.java)
	at com.corp.util.i18n.bugpatterns.I18nNonConstant.<clinit>(I18nNonConstant.java)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at java.lang.Class.newInstance(Class.java:442)
	at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380)
	... 24 more
Caused by: java.lang.ClassNotFoundException: org.jacoco.agent.rt.internal_b0d6a23.Offline
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 32 more
INFO: Elapsed time: 18.145s, Critical Path: 8.44s
INFO: 14 processes: 10 darwin-sandbox, 1 local, 3 worker.
FAILED: Build did NOT complete successfully

It seems like coverage instrumentation should ignore java_plugin targets.

This is a follow-up of https://github.com/bazelbuild/bazel/issues/4398

About this issue

Original URL
State: closed
Created 6 years ago
Reactions: 2
Comments: 26 (8 by maintainers)

Most upvoted comments

@ulfjack i’m haven’t been able to track down what’s breaking it yet, but i have made progress.

here’s a working lcov example with Java: https://github.com/sgammon/bazel-coverage

i’m going to build on that, adding dependencies from my app until something breaks it. currently, the behaviors i’m observing are:

some kind of incompatibility between elemental2 and coverage, which yields the error named in this issue
some issue (unrelated to elemental2) wherein the coverage.dat file is written, but ends up empty, even for a valid Java test of a similar, simple nature. when bazel tries to merge this empty file into a unified coverage report, i get the following error:

Feb 17, 2020 12:56:36 PM com.google.devtools.coverageoutputgenerator.Main getTracefiles
INFO: Found 1 tracefiles.
Feb 17, 2020 12:56:36 PM com.google.devtools.coverageoutputgenerator.Main parseFiles
SEVERE: Parsing file bazel-out/darwin-dbg/testlogs/javatests/core/DualStackTest/coverage.dat
Feb 17, 2020 12:56:36 PM com.google.devtools.coverageoutputgenerator.Main getGcovInfoFiles
INFO: No gcov info file found.
Feb 17, 2020 12:56:36 PM com.google.devtools.coverageoutputgenerator.Main getProfdataFileOrNull
INFO: No .profdata file found.
Feb 17, 2020 12:56:36 PM com.google.devtools.coverageoutputgenerator.Main main
WARNING: There was no coverage found.
ERROR: output '_coverage/_coverage_report.dat' was not created
ERROR: not all outputs were created or valid
Target //javatests/core:DualStackTest up-to-date:
  dist/bin/javatests/core/DualStackTest.jar
  dist/bin/javatests/core/DualStackTest
INFO: Elapsed time: 1.290s, Critical Path: 0.63s
INFO: 2 processes: 1 remote cache hit, 1 local.
FAILED: Build did NOT complete successfully

i am working on (1) by overlaying dependencies until my sample breaks, and working on (2) the opposite direction, by removing complexity until it works. just posting this to see if it might spur anyone into a deeper understanding than i’ve come across yet.

sgammon on Feb 17, 2020