Build: NetBeans IDE 8.0 (Build 201403101706)
VM: Java HotSpot(TM) 64-Bit Server VM, 25.0-b70, Java(TM) SE Runtime Environment, 1.8.0-b132
OS: Linux

User Comments:
jkovalsky: I had JUnitSampleProjectMaven testing project opened with tests generated for whole teststorun package initially with JUnit 3.* library. All tests were run, then I changed CalculatorTest.testDivide() test and wanted to debug it. IDE suggested to update JUnit library to 4.* and update pom.xml automatically. I agreed and replaced the library. Then I tried to debug that testDivide() method when this error probably occurred.

GUEST: Called create unit tests while having some errors in test files

EduardKarelEtc: attempting to create junit test for a package.

GUEST: Auto-creation (<Ctrl>+<U>) of a Test Class for a Java class.

GUEST: 1. Start the computer
2. Start Netbean
3. Click on an old java file in the editor.
4. Go to tools and create test.

GUEST: .

tboudreau: Pasted the inner class below into an empty unit test:

public class ValidationUITest {

    private class UI implements ValidationUI {

        Problem p;
        boolean cleared;

        public void assertCleared() {
            boolean old = cleared;
            cleared = false;
            assertTrue(old);
        }

        public void assertNotCleared() {
            assertFalse(cleared);
        }

        public void assertProblem(String msg) {
            assertNotNull(p);
            assertEquals(msg, p.getMessage());
            cleared = false;
        }

        public void clearProblem() {
            cleared = true;
            p = null;
        }

        public void setProblem(Problem problem) {
            p = problem;
        }

        public void assertNotProblem() {
            assertNull(p);
        }
    }
}




Stacktrace: 
java.lang.IndexOutOfBoundsException: Index: 11, Size: 8
   at com.sun.tools.javac.util.List.get(List.java:475)
   at org.netbeans.modules.junit.AbstractTestGenerator.findAbstractClassImplName(AbstractTestGenerator.java:1917)
   at org.netbeans.modules.junit.AbstractTestGenerator.generateMissingTestMethods(AbstractTestGenerator.java:976)
   at org.netbeans.modules.junit.AbstractTestGenerator.createOrUpdateTestClass(AbstractTestGenerator.java:354)
   at org.netbeans.modules.junit.AbstractTestGenerator.run(AbstractTestGenerator.java:282)
   at org.netbeans.modules.junit.AbstractTestGenerator.run(AbstractTestGenerator.java:119)