# devopsgym / testgen__spotbugs__spotbugs-3269 - 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> Using 4.9.0: ``` [INFO] >>> spotbugs:4.8.6.6:check (default-cli) > :spotbugs @ commons-io >>> [INFO] [INFO] --- spotbugs:4.8.6.6:spotbugs (spotbugs) @ commons-io --- [INFO] Fork Value is true [java] The following errors occurred during analysis: [java] Exception analyzing org.apache.commons.io.input.BOMInputStream using detector edu.umd.cs.findbugs.detect.FindReturnRef [java] edu.umd.cs.findbugs.ba.OpcodeStackScanner$UnreachableCodeException: Didn't reach pc -1 of org.apache.commons.io.input.BOMInputStream.mark(I)V [java] At edu.umd.cs.findbugs.ba.OpcodeStackScanner.getStackAt(OpcodeStackScanner.java:71) [java] At edu.umd.cs.findbugs.detect.FindReturnRef.collectData(FindReturnRef.java:131) [java] At edu.umd.cs.findbugs.detect.FindReturnRef.visit(FindReturnRef.java:108) [java] At edu.umd.cs.findbugs.visitclass.BetterVisitor.visitJavaClass(BetterVisitor.java:321) [java] At edu.umd.cs.findbugs.visitclass.PreorderVisitor.setupVisitorForClass(PreorderVisitor.java:435) [java] At edu.umd.cs.findbugs.visitclass.PreorderVisitor.visitJavaClass(PreorderVisitor.java:377) [java] At org.apache.bcel.classfile.JavaClass.accept(JavaClass.java:249) [java] At edu.umd.cs.findbugs.BytecodeScanningDetector.visitClassContext(BytecodeScanningDetector.java:38) [java] At edu.umd.cs.findbugs.DetectorToDetector2Adapter.visitClass(DetectorToDetector2Adapter.java:76) [java] At edu.umd.cs.findbugs.FindBugs2.lambda$analyzeApplication$1(FindBugs2.java:1100) [java] At java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) [java] At edu.umd.cs.findbugs.CurrentThreadExecutorService.execute(CurrentThreadExecutorService.java:86) [java] At java.base/java.util.concurrent.AbstractExecutorService.invokeAll(AbstractExecutorService.java:247) [java] At edu.umd.cs.findbugs.FindBugs2.analyzeApplication(FindBugs2.java:1110) [java] At edu.umd.cs.findbugs.FindBugs2.execute(FindBugs2.java:309) [java] At edu.umd.cs.findbugs.FindBugs.runMain(FindBugs.java:399) [java] At edu.umd.cs.findbugs.FindBugs2.main(FindBugs2.java:1223) [java] Exception analyzing org.apache.commons.io.input.XmlStreamReader$Builder using detector edu.umd.cs.findbugs.detect.FindReturnRef [java] edu.umd.cs.findbugs.ba.OpcodeStackScanner$UnreachableCodeException: Didn't reach pc -1 of org.apache.commons.io.input.XmlStreamReader$Builder.setCharset(Ljava/nio/charset/Charset;)Lorg/apache/commons/io/input/XmlStreamReader$Builder; [java] At edu.umd.cs.findbugs.ba.OpcodeStackScanner.getStackAt(OpcodeStackScanner.java:71) [java] At edu.umd.cs.findbugs.detect.FindReturnRef.collectData(FindReturnRef.java:131) [java] At edu.umd.cs.findbugs.detect.FindReturnRef.visit(FindReturnRef.java:108) [java] At edu.umd.cs.findbugs.visitclass.BetterVisitor.visitJavaClass(BetterVisitor.java:321) [java] At edu.umd.cs.findbugs.visitclass.PreorderVisitor.setupVisitorForClass(PreorderVisitor.java:435) [java] At edu.umd.cs.findbugs.visitclass.PreorderVisitor.visitJavaClass(PreorderVisitor.java:377) [java] At org.apache.bcel.classfile.JavaClass.accept(JavaClass.java:249) [java] At edu.umd.cs.findbugs.BytecodeScanningDetector.visitClassContext(BytecodeScanningDetector.java:38) [java] At edu.umd.cs.findbugs.DetectorToDetector2Adapter.visitClass(DetectorToDetector2Adapter.java:76) [java] At edu.umd.cs.findbugs.FindBugs2.lambda$analyzeApplication$1(FindBugs2.java:1100) [java] At java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) [java] At edu.umd.cs.findbugs.CurrentThreadExecutorService.execute(CurrentThreadExecutorService.java:86) [java] At java.base/java.util.concurrent.AbstractExecutorService.invokeAll(AbstractExecutorService.java:247) [java] At edu.umd.cs.findbugs.FindBugs2.analyzeApplication(FindBugs2.java:1110) [java] At edu.umd.cs.findbugs.FindBugs2.execute(FindBugs2.java:309) [java] At edu.umd.cs.findbugs.FindBugs.runMain(FindBugs.java:399) [java] At edu.umd.cs.findbugs.FindBugs2.main(FindBugs2.java:1223) [INFO] Done SpotBugs Analysis.... [INFO] [INFO] <<< spotbugs:4.8.6.6:check (default-cli) < :spotbugs @ commons-io <<< ``` To reproduce: ``` git checkout https://github.com/apache/commons-io.git cd commons-io git checkout adc6574c2125035fe95a5a80db08995f8d60459c mvn -Dcommons.spotbugs.impl.version=4.9.0 clean compile spotbugs:check ``` This worked fine in 4.8.0. </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