{"id":23902789,"url":"https://github.com/mtumilowicz/java8-stack-stackwalking","last_synced_at":"2025-09-09T11:39:26.165Z","repository":{"id":110877836,"uuid":"171275336","full_name":"mtumilowicz/java8-stack-stackwalking","owner":"mtumilowicz","description":"How to traverse stack in java 8 environtment.","archived":false,"fork":false,"pushed_at":"2019-02-18T18:41:34.000Z","size":60,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"master","last_synced_at":"2025-06-04T16:05:47.906Z","etag":null,"topics":["java8","stack","stack-walking"],"latest_commit_sha":null,"homepage":"","language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/mtumilowicz.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2019-02-18T11:53:16.000Z","updated_at":"2020-10-14T18:10:56.000Z","dependencies_parsed_at":"2023-07-21T14:16:21.926Z","dependency_job_id":null,"html_url":"https://github.com/mtumilowicz/java8-stack-stackwalking","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/mtumilowicz/java8-stack-stackwalking","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mtumilowicz%2Fjava8-stack-stackwalking","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mtumilowicz%2Fjava8-stack-stackwalking/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mtumilowicz%2Fjava8-stack-stackwalking/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mtumilowicz%2Fjava8-stack-stackwalking/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/mtumilowicz","download_url":"https://codeload.github.com/mtumilowicz/java8-stack-stackwalking/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mtumilowicz%2Fjava8-stack-stackwalking/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":274291358,"owners_count":25258156,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-09-09T02:00:10.223Z","response_time":80,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["java8","stack","stack-walking"],"created_at":"2025-01-04T22:50:35.416Z","updated_at":"2025-09-09T11:39:26.143Z","avatar_url":"https://github.com/mtumilowicz.png","language":"Java","readme":"[![Build Status](https://travis-ci.com/mtumilowicz/java8-stack-stackwalking.svg?branch=master)](https://travis-ci.com/mtumilowicz/java8-stack-stackwalking)\n\n# java8-stack-stackwalking\n\n# manual\n* theory: https://github.com/mtumilowicz/java-stack\n* `StackTraceElement` class represents a stack frame\n    * useful methods:\n        * `int getLineNumber()`\n        * `String getClassName()`\n        * `String getMethodName()`\n* to get all frames of the current thread's stack\n    * first element of the array is the top frame in the stack (last method invocation)\n    * `StackTraceElement[] frames = new Throwable().getStackTrace();`\n    * `StackTraceElement[] frames = Thread.currentThread().getStackTrace();`\n* drawbacks:\n    * `getStrackTrace()` returns entire stack - we may need only top 5 elements for example\n    * no easy way to filter\n    * `StackTraceElement` contains method names and class names, but we often need class references\n    \n# project description\n1. for test purposes\n    ```\n    class StackWalking {\n        void m1() {\n            m2();\n        }\n    \n        private void m2() {\n            m3();\n        }\n    \n        private void m3() {\n            System.out.println(\"---\");\n            System.out.println(\"stack from m3():\");\n            Arrays.stream(new Throwable().getStackTrace()) // getStackTrace on Throwable\n                    .forEach(System.out::println);\n            System.out.println(\"---\");\n    \n            m4();\n        }\n    \n        private void m4() {\n            System.out.println(\"---\");\n            System.out.println(\"stack from m4():\");\n            Arrays.stream(Thread.currentThread().getStackTrace()) // getStackTrace on Thread\n                    .forEach(System.out::println);\n            System.out.println(\"---\");\n        }\n    }\n    ```\n1. simulation\n    ```\n    @Test\n    public void simulation() {\n        new StackWalking().m1();\n    }\n    ```\n    produces:\n    ```\n    ---\n    stack from m3():\n    StackWalking.m3(StackWalking.java:18)\n    StackWalking.m2(StackWalking.java:12)\n    StackWalking.m1(StackWalking.java:8)\n    StackWalkingTest.simulation(StackWalkingTest.java:10)\n    ... // other\n    ---\n    ---\n    stack from m4():\n    java.base/java.lang.Thread.getStackTrace(Thread.java:1606)\n    StackWalking.m4(StackWalking.java:28)\n    StackWalking.m3(StackWalking.java:22)\n    StackWalking.m2(StackWalking.java:12)\n    StackWalking.m1(StackWalking.java:8)\n    StackWalkingTest.simulation(StackWalkingTest.java:10)\n    .. // other\n    ---\n    ```","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmtumilowicz%2Fjava8-stack-stackwalking","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmtumilowicz%2Fjava8-stack-stackwalking","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmtumilowicz%2Fjava8-stack-stackwalking/lists"}