# devopsgym / codegen__spotbugs__spotbugs-3269 - taskset: [devopsgym](https://harnessreport.com/tasks/devopsgym.md) - difficulty: hard - category: code-generation - language: - runnable from the site: no - agent timeout: 3000s ## Results by harness _none yet_ ## Instruction ``` This is a code generation task. You are expected to write working code that solves the described problem. <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> Focus on implementing the required functionality correctly and efficiently. Treat this as a programming challenge. 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