# devopsgym / testgen__spotbugs__spotbugs-3268 - 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> After attempting to upgrade to 4.9.0, I started observing a regression throwing an ISE when analyzing some of our files. Best guess is that this has to do with nested generics and the compilation settings of the file. The existing stack trace is: > The following errors occurred during analysis: > Exception analyzing {filename} using detector edu.umd.cs.findbugs.detect.ThrowingExceptions > java.lang.IllegalStateException: Invalid method signature: (Ljava/util/Map<Ljava/lang/String;Ljava/util/List<Ljava/lang/String;>;>;Ljava/io/PrintWriter;)V > At edu.umd.cs.findbugs.ba.SignatureParser$ParameterSignatureIterator.next(SignatureParser.java:132) > At edu.umd.cs.findbugs.ba.SignatureParser$ParameterSignatureIterator.next(SignatureParser.java:83) > At edu.umd.cs.findbugs.ba.SignatureParser.getParameterOffset(SignatureParser.java:59) > At edu.umd.cs.findbugs.ba.SignatureParser.getNumParameters(SignatureParser.java:208) > At edu.umd.cs.findbugs.detect.ThrowingExceptions.signatureMatches(ThrowingExceptions.java:170) > At edu.umd.cs.findbugs.detect.ThrowingExceptions.lambda$parentThrows$3(ThrowingExceptions.java:134) > At java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:178) > At java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:1034) > At java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129) > At java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527) > At java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513) > At java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) > At java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150) > At java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) > At java.base/java.util.stream.ReferencePipeline.findAny(ReferencePipeline.java:652) > At edu.umd.cs.findbugs.detect.ThrowingExceptions.parentThrows(ThrowingExceptions.java:135) > At edu.umd.cs.findbugs.detect.ThrowingExceptions.visit(ThrowingExceptions.java:70) > At edu.umd.cs.findbugs.visitclass.BetterVisitor.visitMethod(BetterVisitor.java:351) > At org.apache.bcel.classfile.Method.accept(Method.java:115) > At edu.umd.cs.findbugs.visitclass.PreorderVisitor.doVisitMethod(PreorderVisitor.java:320) > At edu.umd.cs.findbugs.visitclass.PreorderVisitor.visitJavaClass(PreorderVisitor.java:405) > At org.apache.bcel.classfile.JavaClass.accept(JavaClass.java:249) > At edu.umd.cs.findbugs.BytecodeScanningDetector.visitClassContext(BytecodeScanningDetector.java:38) > At edu.umd.cs.findbugs.DetectorToDetector2Adapter.visitClass(DetectorToDetector2Adapter.java:76) > At edu.umd.cs.findbugs.FindBugs2.lambda$analyzeApplication$1(FindBugs2.java:1100) > At java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317) > 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:1110) > At edu.umd.cs.findbugs.FindBugs2.execute(FindBugs2.java:309) > At edu.umd.cs.findbugs.FindBugs.runMain(FindBugs.java:399) > At edu.umd.cs.findbugs.FindBugs2.main(FindBugs2.java:1223) The signature of the method is: `public void execute(Map<String, List<String>> parameters, PrintWriter output) throws Exception {...}`, and it appears that the parser is complaining about the `Map<String, List<String>>` construct in the first parameter. This file was able to be parsed in 4.8.6 without any errors being surfaced. </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. ``` --- Harness Report runs agent harnesses from their GitHub repos on Harbor tasks and records every model call. Every page is also `.md` and `.json`; index: https://harnessreport.com/llms.txt · MCP: https://harnessreport.com/mcp