# devopsgym / testgen__spotbugs__spotbugs-2020

- taskset: [devopsgym](https://harnessreport.com/tasks/devopsgym.md)
- difficulty: hard
- category: test-generation
- language: 
- runnable from the site: no
- agent timeout: 3000s

## Results by harness

_none yet_

## Instruction

```
The following text contains a user issue (in <issue/> brackets) posted at a repository. Further, you are provided with file contents of several files in the repository that contain relevant code (in <code> brackets). It may be necessary to use code from third party dependencies or files not contained in the attached documents however. Your task is to identify the issue and implement a test case that verifies a proposed solution to this issue. More details at the end of this text.
<issue>
      ## Code

```java
public class IssueXXX {

    static class ATNSimulator {
        public int adaptivePredict() {
            return 0;
        }
    }

    static class ParserATNSimulator extends ATNSimulator {
    }

    static class Recognizer<ATNInterpreter extends ATNSimulator> {
        public ATNInterpreter getInterpreter() {
            return null;
        }
    }

    static class BaseParser extends Recognizer<ParserATNSimulator> {
    }

    public static class Parser extends BaseParser {

        public void text() {
            int _alt = 1;
            do {
                switch (_alt) {
                    case 1:
                        if (_alt == 1) {
                            continue;
                        }
                        break;
                    default:
                        throw new RuntimeException();
                }
                _alt = getInterpreter().adaptivePredict();
            } while (_alt != 2);
        }

    }}
```
## Bytecode

```
  // access flags 0x1
  public text()V
   L0
    LINENUMBER 29 L0
    ICONST_1
    ISTORE 1
   L1
    LINENUMBER 31 L1
   FRAME APPEND [I]
    ILOAD 1
    LOOKUPSWITCH
      1: L2
      default: L3
   L2
    LINENUMBER 33 L2
   FRAME SAME
    ILOAD 1
    ICONST_1
    IF_ICMPNE L4
   L5
    LINENUMBER 34 L5
    GOTO L6
   L3
    LINENUMBER 38 L3
   FRAME SAME
    NEW java/lang/RuntimeException
    DUP
    INVOKESPECIAL java/lang/RuntimeException.<init> ()V
    ATHROW
   L4
    LINENUMBER 40 L4
   FRAME SAME
    ALOAD 0
    INVOKEVIRTUAL ghIssues/Issue2017$Parser.getInterpreter ()LghIssues/Issue2017$ATNSimulator;
    CHECKCAST ghIssues/Issue2017$ParserATNSimulator
    INVOKEVIRTUAL ghIssues/Issue2017$ParserATNSimulator.adaptivePredict ()I
    ISTORE 1
   L6
    LINENUMBER 41 L6
   FRAME SAME
    ILOAD 1
    ICONST_2
    IF_ICMPNE L1
   L7
    LINENUMBER 42 L7
    RETURN
   L8
    LOCALVARIABLE this LghIssues/Issue2017$Parser; L0 L8 0
    LOCALVARIABLE _alt I L1 L8 1
    MAXSTACK = 2
    MAXLOCALS = 2

```

## Exception
```
The following errors occurred during analysis:
  Can't get stack offset 0 from [] @ 40 in ghIssues.IssueXXXX$Parser.text : ()V
    java.lang.IllegalArgumentException: 0 is not a value stack offset
      At edu.umd.cs.findbugs.OpcodeStack.getStackItem(OpcodeStack.java:3156)
      At edu.umd.cs.findbugs.detect.FindReturnRef.afterOpcode(FindReturnRef.java:300)
      At edu.umd.cs.findbugs.visitclass.DismantleBytecode.visit(DismantleBytecode.java:880)
      At edu.umd.cs.findbugs.detect.FindReturnRef.visit(FindReturnRef.java:119)
      At edu.umd.cs.findbugs.visitclass.BetterVisitor.visitCode(BetterVisitor.java:218)
      At edu.umd.cs.findbugs.visitclass.PreorderVisitor.visitCode(PreorderVisitor.java:243)
      At edu.umd.cs.findbugs.bcel.OpcodeStackDetector.visitCode(OpcodeStackDetector.java:65)
      At org.apache.bcel.classfile.Code.accept(Code.java:131)
      At edu.umd.cs.findbugs.visitclass.PreorderVisitor.doVisitMethod(PreorderVisitor.java:315)
      At edu.umd.cs.findbugs.visitclass.PreorderVisitor.visitJavaClass(PreorderVisitor.java:397)
      At org.apache.bcel.classfile.JavaClass.accept(JavaClass.java:213)
      At edu.umd.cs.findbugs.BytecodeScanningDetector.visitClassContext(BytecodeScanningDetector.java:38)
      At edu.umd.cs.findbugs.DetectorToDetector2Adapter.visitClass(DetectorToDetector2Adapter.java:76)
      At edu.umd.cs.findbugs.FindBugs2.lambda$analyzeApplication$1(FindBugs2.java:1108)
      At java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
      At edu.umd.cs.findbugs.CurrentThreadExecutorService.execute(CurrentThreadExecutorService.java:86)
      At java.base/java.util.concurrent.AbstractExecutorService.invokeAll(AbstractExecutorService.java:247)
      At edu.umd.cs.findbugs.FindBugs2.analyzeApplication(FindBugs2.java:1118)
      At edu.umd.cs.findbugs.FindBugs2.execute(FindBugs2.java:309)
      At edu.umd.cs.findbugs.test.AnalysisRunner.run(AnalysisRunner.java:115)
```

</issue>
Please generate test cases that check whether an implemented solution resolves the issue of the user (at the top, within <issue/> brackets).
You may apply changes to several files.
Apply as much reasoning as you please and see necessary.
Make sure to implement only test cases and don't try to fix the issue itself.
You are not allowed to read git history.
```
---
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