A DESCRIPTION OF THE PROBLEM :
This was supposedly fixed in JAVA 8. But i discovered this error on java 8

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Write junit for a thread with sleep written inside it

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No error should be shown
ACTUAL -
Class transformation time: 1.298022943s for 2405 classes or 5.397184794178794E-4s per class
*** java.lang.instrument ASSERTION FAILED ***: "!errorOutstanding" with message transform method call failed at JPLISAgent.c line: 844
*** java.lang.instrument ASSERTION FAILED ***: "!errorOutstanding" with message transform method call failed at JPLISAgent.c line: 844

Process finished with exit code 0

---------- BEGIN SOURCE ----------
class A {
protected void func() {

 Thread runEmergencyModeThread = new Thread() {
            public void run() {
mServiceWait = true;

                int timeOutCount = 0;
while (mServiceWait) {
                    try {
                        if (proccessedPackages < 125) {
                            proccessedPackages += 1;
                            if (proccessedPackages % 5 == 0) {
                                updateProgress(); //this line never executed
                            }
                        }
                        timeOutCount++;
                        if (timeOutCount > 300) {
                            Elog.v(TAG, "runApplicationOperation - mServiceWait timeout");
                            setServiceWait(false); // timeout 90 secs
                        }
                        sleep(300);//This is the last line to be executed
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
}
Thread.start();
}
}
}
@test
 void functest(){
 A testClass=new A();
 A spyclass=spy(testclass);
 spyclass.func();
 verify(spyclass,times(1)).func();
 }


---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
The test passes but error is thrown