对于此处junit的类，去点击 Debug Test，结果还是报错：
之前就遇到：结果右下角提示错误：
Build failed, do you want to continue?
点击Proceed
问题依旧。
再去调试：
Build failed, do you want to continue?
来源：debugger for java（扩展）
点击fix
之前试过了：点击clean cache
Are you sure you want to clean the Java language server workspace?
restart and delete
点击了 Fix，选：
Update project configuration
试试：
然后，终端底部问题好像变化了一下，然后就没有然后了：
再去试试，问题依旧。
抽空再去看看如何解决。
点击 Troubleshooting guide，打开
去看看log
Open log file
/Users/crifan/Library/Application Support/Code/User/workspaceStorage/e65a81e7e256ecd13e33dbd011d808a5/redhat.java/jdt_ws/.metadata/.log
!ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:03.183 !MESSAGE >> document/codeAction !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:03.184 !MESSAGE >> workspace/executeCommand java.resolvePath !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:03.363 !MESSAGE >> document/foldingRange !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:03.381 !MESSAGE >> document/hover !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:03.384 !MESSAGE >> java/findLinks !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:03.431 !MESSAGE >> workspace/executeCommand vscode.java.test.search.codelens !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:03.431 !MESSAGE >> workspace/executeCommand vscode.java.resolveMainMethod !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:03.433 !MESSAGE >> document/codeAction !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:04.351 !MESSAGE >> document/documentHighlight !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:04.599 !MESSAGE >> document/codeAction !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:04.853 !MESSAGE >> java/buildWorkspace (incremental) !ENTRY org.eclipse.jdt.ls.core 4 0 2020-01-10 20:46:04.859 !MESSAGE Error occured while building workspace. Details: message: '<>' operator is not allowed for source level below 1.7; code: 16778099; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble101/ContinuousAddressBuilder.java; line: 48 message: Lambda expressions are allowed only at source level 1.8 or above; code: 1610613381; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble101/ContinuousAddressBuilder.java; line: 138 message: Lambda expressions are allowed only at source level 1.8 or above; code: 1610613381; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble101/UnContinuousAddressBuilder.java; line: 107 message: '<>' operator is not allowed for source level below 1.7; code: 16778099; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble101/UnContinuousAddressBuilder.java; line: 55 message: Lambda expressions are allowed only at source level 1.8 or above; code: 1610613381; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble104/ContinuousAddressBuilder.java; line: 89 message: Lambda expressions are allowed only at source level 1.8 or above; code: 1610613381; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble104/ContinuousAddressBuilder.java; line: 94 message: Lambda expressions are allowed only at source level 1.8 or above; code: 1610613381; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble104/ContinuousAddressBuilder.java; line: 113 message: Cannot refer to the non-final local variable builder defined in an enclosing scope; code: 536870937; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble104/ContinuousAddressBuilder.java; line: 113 message: Cannot refer to the non-final local variable fun defined in an enclosing scope; code: 536870937; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble104/ContinuousAddressBuilder.java; line: 113 message: Lambda expressions are allowed only at source level 1.8 or above; code: 1610613381; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble104/ContinuousAddressBuilder.java; line: 84 message: Lambda expressions are allowed only at source level 1.8 or above; code: 1610613381; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble104/UnContinuousAddressBuilder.java; line: 101 message: Lambda expressions are allowed only at source level 1.8 or above; code: 1610613381; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble104/UnContinuousAddressBuilder.java; line: 106 message: Lambda expressions are allowed only at source level 1.8 or above; code: 1610613381; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble104/UnContinuousAddressBuilder.java; line: 111 message: '<>' operator is not allowed for source level below 1.7; code: 16778099; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/test/java/com/iec/test/Analysis101Test.java; line: 124 message: '<>' operator is not allowed for source level below 1.7; code: 16778099; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/test/java/com/iec/test/Analysis104Test.java; line: 97 !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:06.985 !MESSAGE >> workspace/executeCommand vscode.java.resolveBuildFiles !ENTRY org.eclipse.jdt.ls.core 1 0 2020-01-10 20:46:08.256 !MESSAGE >> workspace/executeCommand java.resolvePath
去解决：
【已解决】VSCode调试java报错：message: ‘<>’ operator is not allowed for source level below 1.7
然后继续解决其他的问题：
【已解决】Java代码警告：The serializable class does not declare a static final serialVersionUID field of type long
以及：
【已解决】VSCode中java代码警告：The static method from the type should be accessed in a static way
以及：
【已解决】VSCode中java代码警告：is a raw type References to generic type should be parameterized
解决了所有的error和warning后，再去点击 Debug Test 即可正常调试，没有此处提示了
【总结】
此处，点击（Debug Test）去开启调试，之前弹框提示：
Build failed, do you want to continue?
是因为，代码中有（各种）error（和其他很多warning警告）
在依次解决了代码的error（和顺带也解决了warning）后，即可正常调试，不会有这个弹框提示了。
转载请注明：在路上 » 【已解决】VSCode中调试java报错：Build failed do you want to continue