Stacktrace

stacktrace.txt

     [java] [main] WARN  o.o.c.ignore.CodegenIgnoreProcessor - Output directory does not exist, or is inaccessible. No file (.openapi-generator-ignore) will be evaluated.
     [java] [main] INFO  o.o.codegen.DefaultGenerator - OpenAPI Generator: java (client)
     [java] [main] INFO  o.o.codegen.DefaultGenerator - Generator 'java' is considered stable.
     [java] [main] INFO  o.o.c.languages.AbstractJavaCodegen - Environment variable JAVA_POST_PROCESS_FILE not defined so the Java code may not be properly formatted. To define it, try 'export JAVA_POST_PROCESS_FILE="/usr/local/bin/clang-format -i"' (Linux/Mac)
     [java] [main] INFO  o.o.c.languages.AbstractJavaCodegen - NOTE: To enable file post-processing, 'enablePostProcessFile' must be set to `true` (--enable-post-process-file for CLI).
     [java] [main] INFO  o.o.c.languages.AbstractJavaCodegen - Invoker Package Name, originally not set, is now derived from api package name: com.bugreproduction.swagger.client
     [java] [main] INFO  o.o.c.languages.AbstractJavaCodegen - Processing operation null
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/model/GetResponse.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/test/java/com/bugreproduction/swagger/client/model/GetResponseTest.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/docs/GetResponse.md
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/model/ObjectMap.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/test/java/com/bugreproduction/swagger/client/model/ObjectMapTest.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/docs/ObjectMap.md
     [java] [main] WARN  o.o.codegen.DefaultCodegen - Empty operationId found for path: get /reproduce-bug. Renamed to auto-generated operationId: reproduce_bugGet
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/api/DefaultApi.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/test/java/com/bugreproduction/swagger/client/api/DefaultApiTest.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/docs/DefaultApi.md
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/pom.xml
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/README.md
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/build.gradle
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     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/settings.gradle
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     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/AndroidManifest.xml
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/.travis.yml
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/ApiClient.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/StringUtil.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/auth/HttpBasicAuth.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/auth/HttpBearerAuth.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/auth/ApiKeyAuth.java
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     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/gradle/wrapper/gradle-wrapper.properties
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     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/ApiException.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/Configuration.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/Pair.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/auth/Authentication.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/ApiCallback.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/ApiResponse.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/JSON.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/ProgressRequestBody.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/ProgressResponseBody.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/src/main/java/com/bugreproduction/swagger/client/GzipRequestInterceptor.java
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/.openapi-generator-ignore
     [java] [main] INFO  o.o.codegen.AbstractGenerator - writing file /home/.openapi-generator/VERSION
     [exec] 
     [exec] > Task :compileJava FAILED
     [exec] 
     [exec] Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
     [exec] Use '--warning-mode all' to show the individual deprecation warnings.
     [exec] See https://docs.gradle.org/6.0.1/userguide/command_line_interface.html#sec:command_line_warnings
     [exec] 1 actionable task: 1 executed
     [exec] /home/src/main/java/com/bugreproduction/swagger/client/model/GetResponse.java:35: error: cannot find symbol
     [exec]   private ObjectMap data = new HashMap<>();
     [exec]                                ^
     [exec]   symbol:   class HashMap
     [exec]   location: class GetResponse
     [exec] 1 error
     [exec] 
     [exec] FAILURE: Build failed with an exception.
     [exec] 
     [exec] * What went wrong:
     [exec] Execution failed for task ':compileJava'.
     [exec] > Compilation failed; see the compiler error output for details.
     [exec] 
     [exec] * Try:
     [exec] Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
     [exec] 
     [exec] * Get more help at https://help.gradle.org
     [exec] 
     [exec] BUILD FAILED in 619ms
     [exec] Result: 1
     [echo] Created v3 client jar: /home/build/libs/swagger-java-client-1.0.0.jar