Hi,
for all JaCoCo versions the following applies:
org.jacoco.agent-NNN.jar contains an API to obtain the Agent as a
resource, there is no Premain-Class header.
org.jacoco.agent-NNN-runtime.jar is the agent itself (with a
Premain-Class header).
Best regards,
-marc
On 2016-05-10 10:27, [email protected] wrote:
Hi all
I have problem after upgrade from jacoco 0.7.4 to jacoco 0.7.6 : maven
surefire does not start forked VM:
Error occurred during initialization of VM
Failed to find Premain-Class manifest attribute in
***org.jacoco.agent\\0.7.6.201602180812\\org.jacoco.agent-0.7.6.201602180812-runtime.jar
agent library failed to init: instrument.
From what I discovered:
- jacoco agent 0.7.4 has META-INF/MANIFEST.MF with Premain class
attribute
- jacoco agent 0.7.6 has META-INF/MANIFEST.MF without Premain class
attribute, however it contains jacocoagent.jar inside with correct
Manifest mf.
I have used
http://central.maven.org/maven2/org/jacoco/org.jacoco.agent/0.7.6.201602180812/org.jacoco.agent-0.7.6.201602180812.jar
from mavencentral, it seems that instead of re-package all classes it
have some jar-archives inside. Is this correct way of packaging ? It
seems that JVM is searching for Premain Class attribute in
META-INF/MANIFEST.MF, where it is missing.
Also I don't think that having jar in jar is correct approach in java,
JVM probably won't find classes in internal archive (at least
nativley, they are some solutions to make it possible, but I am not
aware if jacoco-agent is using it), could somebody explain how this is
supposed to work ? Does only me is having an issue with jacoco-agent
0.7.6 ?
Regards,
Grzesiek
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