Emma Offline instrumentation and ClassFormatError with Java8

[Bill Smith]

I'm trying to use Emma to instrument so unit test code that runs with
a just TestNg test runner. To do this,I'm instrumenting the jar I'm
testing with java -cp ..\jre\lib\ext\emma.jar emma instr -m overwrite
-cp myclasses.jar. That seems to work fine. However, whenever I try
running the tests, I get a ton of "java.lang.ClassFormatError: Illegal
local variable table length" errors. I've tried adding
-XX:-UseSplitVerifier, but not change in output. We are using Jre
1.8u112.

Instrumentation output:

$ java -cp ..\jre\lib\ext\emma.jar emma instr -m overwrite -cp myclasses.jar
EMMA: processing instrumentation path ...
EMMA: instrumentation path processed in 500 ms
EMMA: [340 class(es) instrumented, 117 resource(s) copied]
EMMA: metadata merged into [d:\mytest\coverage.em] {in 35 ms}

Any thoughts or suggestions?

Regards,
Bill

[Andreas]

I'm afraid Emma doesn't reliably work work with Java 8.
We switched to Jacoco. I found it also easier to integrate into Ant.
http://www.eclemma.org/jacoco/

On 14 Nov 2016 at 22:14, Bill Smith wrote:

I'm trying to use Emma to instrument so unit test code that runs with
a just TestNg test runner. To do this,I'm instrumenting the jar I'm
testing with java -cp ..\jre\lib\ext\emma.jar emma instr -m overwrite
-cp myclasses.jar. That seems to work fine. However, whenever I try
running the tests, I get a ton of "java.lang.ClassFormatError: Illegal
local variable table length" errors. I've tried adding
-XX:-UseSplitVerifier, but not change in output. We are using Jre
1.8u112.

Instrumentation output:

$ java -cp ..\jre\lib\ext\emma.jar emma instr -m overwrite -cp myclasses.jar
EMMA: processing instrumentation path ...
EMMA: instrumentation path processed in 500 ms
EMMA: [340 class(es) instrumented, 117 resource(s) copied]
EMMA: metadata merged into [d:\mytest\coverage.em] {in 35 ms}

Any thoughts or suggestions?

Regards,
Bill

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Emma Offline instrumentation and ClassFormatError with Java8

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