We cannot perform a plugin release, because two injected tests fail in the Jenkins job[0].
The code can be found on github here[1].

Steps to reproduce:
You can reproduce the problem, by cloning the repository and after running mvn clean install.

For the first test ( org.jvnet.hudson.test.junit.FailedTest.org.jvnet.hudson.test.JellyTestSuiteBuilder$JellyTestSuite):
We understand that there is a problem with Guava, but we have no idea how to fix it. Our plugin is indirectly dependent on it.

For the second test (org.jvnet.hudson.test.PluginAutomaticTestBuilder$CliSanityTest.testCliSanity):
We understand that there was a compatibility problem with Java 7 vs. 8. and it was resolved (see [2]), but even though we are using Jenkins 1.609.1, we are still seeing the problem, both locally with Java 7 and 8 and on the oficial Jenkins job.

Can we get some guidance for these problems?

Thank you,
Andrei Tuicu

[0] https://jenkins.ci.cloudbees.com/job/plugins/job/JiraTestResultReporter-plugin/
[1] https://github.com/jenkinsci/JiraTestResultReporter-plugin
[2] https://issues.jenkins-ci.org/browse/JENKINS-23239

Full stack trace:
Running InjectedTest
Tests run: 2, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 5.139 sec <<< FAILURE! - in InjectedTest
org.jvnet.hudson.test.JellyTestSuiteBuilder$JellyTestSuite(org.jvnet.hudson.test.junit.FailedTest) Time elapsed: 0.007 sec <<< ERROR!
java.lang.NoSuchMethodError: com.google.common.cache.CacheBuilder.build()Lcom/google/common/cache/Cache;
at hudson.model.Queue.<init>(Queue.java:216)
at jenkins.model.Jenkins.<init>(Jenkins.java:772)
at hudson.model.Hudson.<init>(Hudson.java:83)
at org.jvnet.hudson.test.HudsonTestCase.newHudson(HudsonTestCase.java:500)
at org.jvnet.hudson.test.HudsonTestCase.setUp(HudsonTestCase.java:330)
at org.jvnet.hudson.test.JellyTestSuiteBuilder$JellyTestSuite.setUp(JellyTestSuiteBuilder.java:133)
at org.jvnet.hudson.test.junit.GroupedTest.run(GroupedTest.java:49)
at junit.framework.TestSuite.runTest(TestSuite.java:255)
at junit.framework.TestSuite.run(TestSuite.java:250)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)

testCliSanity(org.jvnet.hudson.test.PluginAutomaticTestBuilder$CliSanityTest) Time elapsed: 0.238 sec <<< ERROR!
java.lang.IllegalStateException: second instance
at jenkins.model.Jenkins.<init>(Jenkins.java:760)
at hudson.model.Hudson.<init>(Hudson.java:83)
at org.jvnet.hudson.test.HudsonTestCase.newHudson(HudsonTestCase.java:500)
at org.jvnet.hudson.test.HudsonTestCase.setUp(HudsonTestCase.java:330)
at junit.framework.TestCase.runBare(TestCase.java:139)
at org.jvnet.hudson.test.HudsonTestCase.runBare(HudsonTestCase.java:296)
at junit.framework.TestResult$1.protect(TestResult.java:122)
at junit.framework.TestResult.runProtected(TestResult.java:142)
at junit.framework.TestResult.run(TestResult.java:125)
at junit.framework.TestCase.run(TestCase.java:129)
at junit.framework.TestSuite.runTest(TestSuite.java:255)
at junit.framework.TestSuite.run(TestSuite.java:250)
at junit.framework.TestSuite.runTest(TestSuite.java:255)
at junit.framework.TestSuite.run(TestSuite.java:250)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)