NullPointerException when instrumenting module-info.class #544
Description
Attempt to instrument module-info.class produced by JDK 9 EA b171 leads to
Exception in thread "main" java.io.IOException: Error while instrumenting /tmp/original/module-info.class.
at org.jacoco.core.instr.Instrumenter.instrumentError(Instrumenter.java:165)
at org.jacoco.core.instr.Instrumenter.instrument(Instrumenter.java:117)
at org.jacoco.core.instr.Instrumenter.instrument(Instrumenter.java:141)
at org.jacoco.core.instr.Instrumenter.instrument(Instrumenter.java:159)
at org.jacoco.core.instr.Instrumenter.instrumentAll(Instrumenter.java:196)
at org.jacoco.cli.internal.commands.Instrument.instrument(Instrument.java:83)
at org.jacoco.cli.internal.commands.Instrument.instrumentRecursive(Instrument.java:72)
at org.jacoco.cli.internal.commands.Instrument.instrumentRecursive(Instrument.java:68)
at org.jacoco.cli.internal.commands.Instrument.execute(Instrument.java:56)
at org.jacoco.cli.internal.Main.execute(Main.java:89)
at org.jacoco.cli.internal.Main.main(Main.java:104)
Caused by: java.lang.NullPointerException
at org.objectweb.asm.Item.set(Item.java:231)
at org.objectweb.asm.ClassReader.copyPool(ClassReader.java:368)
at org.objectweb.asm.ClassWriter.<init>(ClassWriter.java:666)
at org.jacoco.core.instr.Instrumenter$1.<init>(Instrumenter.java:79)
at org.jacoco.core.instr.Instrumenter.instrument(Instrumenter.java:79)
at org.jacoco.core.instr.Instrumenter.instrument(Instrumenter.java:109)
Workaround is to exclude it from instrumentation, however there are complications:
- in case of CLI, Maven and Ant there is no way to exclude files when instrumenting archive files (Add class includes/excludes attributes for instrumentation #187), so might require repackaging of archive files
- in case of CLI there is no way to specify exclusions, so in addition to repackaging of archive files also requires copying of files
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