jdk8 win64 hotspot: jdk_jdi_0 fails with JDWP library path too long

jdk8 win64 hotspot: jdk_jdi_0 fails with:
```
FATAL ERROR in native method: JDWP One or more of the library paths supplied to jdwp, likely by sun.boot.library.path, is too long., jvmtiError=JVMTI_ERROR_INVALID_LOCATION(24)
```
Link to failing job: https://ci.adoptopenjdk.net/job/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/397/consoleFull
Build under test:
```
12:29:01 openjdk version "1.8.0_282"
12:29:01 OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_282-b07)
12:29:01 OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.282-b07, mixed mode)
```
Output of failing test:
```
12:46:26 ===============================================
12:46:26 Running test jdk_jdi_0 ...
12:46:26 ===============================================
12:46:26 jdk_jdi_0 Start Time: Sat Jan 9 12:46:19 2021 Epoch Time (ms): 1610196379619
12:46:26 Nothing to be done for setup.
12:46:26 variation: Mode150
12:46:26 JVM_OPTIONS: -XX:+UseCompressedOops
12:46:26 { itercnt=1; \
12:46:26 mkdir -p "J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/\\TKG\\test_output_16101954855260\\jdk_jdi_0"; \
12:46:26 cd "J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/\\TKG\\test_output_16101954855260\\jdk_jdi_0"; \
12:46:26 "J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdkbinary/j2sdk-image\\bin\\java" -Xmx512m -jar "J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests///..//jvmtest\\openjdk\\jtreg\\lib\\jtreg.jar" \
12:46:26 -agentvm -a -ea -esa -v:fail,error,time,nopass -retain:fail,error,*.dmp,javacore.*,heapdump.*,*.trc -ignore:quiet -timeoutFactor:8 -xml:verify -concurrency:2 -vmoptions:"-Xmx512m -XX:+UseCompressedOops " \
12:46:26 -w ""J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/\\TKG\\test_output_16101954855260\\jdk_jdi_0"\\work" \
12:46:26 -r "J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests///..//jvmtest\\openjdk\\report" \
12:46:26 -jdk:"J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdkbinary/j2sdk-image" \
12:46:26 -exclude:"J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/\\openjdk\\openjdk-jdk\\jdk\\test\\ProblemList.txt" \
12:46:26 -exclude:"J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests///..//jvmtest\\openjdk\\ProblemList_openjdk8.txt" \
12:46:26 "J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/\\openjdk\\openjdk-jdk\\jdk\\test:jdk_jdi"; \
12:46:26 if [ $? -eq 0 ] ; then echo ""; echo "jdk_jdi_0""_PASSED"; echo ""; cd J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/; else echo ""; echo "jdk_jdi_0""_FAILED"; echo ""; fi; } 2>&1 | tee -a "J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/\\TKG\\test_output_16101954855260\\TestTargetResult";
12:46:26 Directory "J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work" not found: creating
12:46:26 XML output with verification to J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work
12:47:35 --------------------------------------------------
12:47:35 TEST: com/sun/jdi/PrivateTransportTest.sh
12:47:35 TEST JDK: J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdkbinary\j2sdk-image
12:47:35
12:47:35 ACTION: compile -- Passed. Compilation successful
12:47:35 REASON: User specified action: run compile -g HelloWorld.java
12:47:35 TIME: 0.026 seconds
12:47:35 messages:
12:47:35 command: compile -g J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi\HelloWorld.java
12:47:35 reason: User specified action: run compile -g HelloWorld.java
12:47:35 Mode: agentvm
12:47:35 Agent id: 2
12:47:35 elapsed time (seconds): 0.026
12:47:35 configuration:
12:47:35 Boot Layer (javac runtime environment)
12:47:35 class path: J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdkbinary\j2sdk-image\lib\tools.jar
12:47:35 J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\jvmtest\openjdk\jtreg\lib\javatest.jar
12:47:35 J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\jvmtest\openjdk\jtreg\lib\jtreg.jar
12:47:35
12:47:35 javac compilation environment
12:47:35 source path: J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi
12:47:35 class path: J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi
12:47:35 J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work\classes\1\com\sun\jdi
12:47:35 J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdkbinary\j2sdk-image\lib\tools.jar
12:47:35
12:47:35 rerun:
12:47:35 cd 'J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work\scratch\1' && \
12:47:35 PATH='C:\cygwin64\bin;C:\windows\system32;C:\windows;C:\windows\System32\Wbem;C:\windows\System32\WindowsPowerShell\v1.0;C:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn;C:\Program Files\Microsoft SQL Server\100\Tools\Binn;C:\Program Files\Microsoft SQL Server\100\DTS\Binn;C:\Strawberry\perl\bin;C:\Program Files\Git\cmd;C:\openjdk\jdk-8\bin;C:\apache-ant\apache-ant-1.10.5\bin;C:\Program Files\Microsoft SQL Server\110\Tools\Binn;C:\Program Files\Microsoft SQL Server\120\Tools\Binn;C:\rust\bin;C:\Program Files\IcedTeaWEB\bin;C:\ProgramData\chocolatey\bin;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0;C:\Program Files (x86)\WiX Toolset v3.14\bin;C:\Program Files (x86)\IncrediBuild' \
12:47:35 SystemDrive=C: \
12:47:35 SystemRoot='C:\windows' \
12:47:35 TEMP='C:\Users\jenkins.bld-win2012r2-2\AppData\Local\Temp' \
12:47:35 TMP='C:\Users\jenkins.bld-win2012r2-2\AppData\Local\Temp' \
12:47:35 windir='C:\windows' \
12:47:35 'J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdkbinary\j2sdk-image\bin\javac' \
12:47:35 -J-ea \
12:47:35 -J-esa \
12:47:35 -J-Xmx512m \
12:47:35 -J-XX:+UseCompressedOops \
12:47:35 -J-Dtest.vm.opts='-ea -esa -Xmx512m -XX:+UseCompressedOops' \
12:47:35 -J-Dtest.tool.vm.opts='-J-ea -J-esa -J-Xmx512m -J-XX:+UseCompressedOops' \
12:47:35 -J-Dtest.compiler.opts= \
12:47:35 -J-Dtest.java.opts= \
12:47:35 -J-Dtest.jdk='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdkbinary\j2sdk-image' \
12:47:35 -J-Dcompile.jdk='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdkbinary\j2sdk-image' \
12:47:35 -J-Dtest.timeout.factor=8.0 \
12:47:35 -J-Dtest.root='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test' \
12:47:35 -J-Dtest.name=com/sun/jdi/PrivateTransportTest.sh \
12:47:35 -J-Dtest.file='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi\PrivateTransportTest.sh' \
12:47:35 -J-Dtest.src='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi' \
12:47:35 -J-Dtest.src.path='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi' \
12:47:35 -J-Dtest.classes='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work\classes\1\com\sun\jdi' \
12:47:35 -J-Dtest.class.path='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work\classes\1\com\sun\jdi' \
12:47:35 -J-Dtest.class.path.prefix='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work\classes\1\com\sun\jdi;J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi' \
12:47:35 -d 'J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work\classes\1\com\sun\jdi' \
12:47:35 -sourcepath 'J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi' \
12:47:35 -classpath 'J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi;J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work\classes\1\com\sun\jdi;J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdkbinary\j2sdk-image\lib\tools.jar' \
12:47:35 -g 'J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi\HelloWorld.java'
12:47:35
12:47:35 ACTION: shell -- Failed. Execution failed: exit code 1
12:47:35 REASON: User specified action: run shell PrivateTransportTest.sh
12:47:35 TIME: 0.214 seconds
12:47:35 messages:
12:47:35 command: shell PrivateTransportTest.sh
12:47:35 reason: User specified action: run shell PrivateTransportTest.sh
12:47:35 elapsed time (seconds): 0.214
12:47:35 STDOUT:
12:47:35 JDK under test is: J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdkbinary/j2sdk-image
12:47:35 Setup private transport library by copying an existing one and renaming
12:47:35 cp J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdkbinary/j2sdk-image/jre/bin/dt_socket.dll /cygdrive/j/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/TKG/test_output_16101954855260/jdk_jdi_0/work/classes/1/com/sun/jdi/private_dt_socket.dll
12:47:35 PATH=/usr/bin:/cygdrive/c/windows/system32:/cygdrive/c/windows:/cygdrive/c/windows/System32/Wbem:/cygdrive/c/windows/System32/WindowsPowerShell/v1.0:/cygdrive/c/Program Files (x86)/Microsoft SQL Server/100/Tools/Binn:/cygdrive/c/Program Files/Microsoft SQL Server/100/Tools/Binn:/cygdrive/c/Program Files/Microsoft SQL Server/100/DTS/Binn:/cygdrive/c/Strawberry/perl/bin:/cygdrive/c/Program Files/Git/cmd:/cygdrive/c/openjdk/jdk-8/bin:/cygdrive/c/apache-ant/apache-ant-1.10.5/bin:/cygdrive/c/Program Files/Microsoft SQL Server/110/Tools/Binn:/cygdrive/c/Program Files/Microsoft SQL Server/120/Tools/Binn:/cygdrive/c/rust/bin:/cygdrive/c/Program Files/IcedTeaWEB/bin:/cygdrive/c/ProgramData/chocolatey/bin:/cygdrive/c/Program Files (x86)/Microsoft SDKs/TypeScript/1.0:/cygdrive/c/Program Files (x86)/WiX Toolset v3.14/bin:/cygdrive/c/Program Files (x86)/IncrediBuild:/cygdrive/j/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/TKG/test_output_16101954855260/jdk_jdi_0/work/classes/1/com/sun/jdi
12:47:35 J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdkbinary/j2sdk-image/bin/java -agentlib:jdwp=transport=J:\\jenkins\\workspace\\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\\openjdk-tests\\TKG\\test_output_16101954855260\\jdk_jdi_0\\work\\classes\\1\\com\\sun\\jdi\\private_dt_socket,server=y,suspend=n -classpath "J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/TKG/test_output_16101954855260/jdk_jdi_0/work/classes/1/com/sun/jdi" HelloWorld
12:47:35 FATAL ERROR in native method: JDWP One or more of the library paths supplied to jdwp, likely by sun.boot.library.path, is too long., jvmtiError=JVMTI_ERROR_INVALID_LOCATION(24)
12:47:35 test status for was: 1
12:47:35 The test failed :-(
12:47:35 exit status was 1
12:47:35 STDERR:
12:47:35 JDWP exit error JVMTI_ERROR_INVALID_LOCATION(24): One or more of the library paths supplied to jdwp, likely by sun.boot.library.path, is too long. [linker_md.c:60]
12:47:35 unspecified test failure
12:47:35 rerun:
12:47:35 cd 'J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work\scratch\1' && \
12:47:35 PATH='C:\cygwin64\bin;C:\windows\system32;C:\windows;C:\windows\System32\Wbem;C:\windows\System32\WindowsPowerShell\v1.0;C:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn;C:\Program Files\Microsoft SQL Server\100\Tools\Binn;C:\Program Files\Microsoft SQL Server\100\DTS\Binn;C:\Strawberry\perl\bin;C:\Program Files\Git\cmd;C:\openjdk\jdk-8\bin;C:\apache-ant\apache-ant-1.10.5\bin;C:\Program Files\Microsoft SQL Server\110\Tools\Binn;C:\Program Files\Microsoft SQL Server\120\Tools\Binn;C:\rust\bin;C:\Program Files\IcedTeaWEB\bin;C:\ProgramData\chocolatey\bin;C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0;C:\Program Files (x86)\WiX Toolset v3.14\bin;C:\Program Files (x86)\IncrediBuild' \
12:47:35 SystemDrive=C: \
12:47:35 SystemRoot='C:\windows' \
12:47:35 TEMP='C:\Users\jenkins.bld-win2012r2-2\AppData\Local\Temp' \
12:47:35 TMP='C:\Users\jenkins.bld-win2012r2-2\AppData\Local\Temp' \
12:47:35 windir='C:\windows' \
12:47:35 TESTFILE=J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/openjdk/openjdk-jdk/jdk/test/com/sun/jdi/PrivateTransportTest.sh \
12:47:35 TESTSRC=J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/openjdk/openjdk-jdk/jdk/test/com/sun/jdi \
12:47:35 TESTSRCPATH=J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/openjdk/openjdk-jdk/jdk/test/com/sun/jdi \
12:47:35 TESTCLASSES=J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/TKG/test_output_16101954855260/jdk_jdi_0/work/classes/1/com/sun/jdi \
12:47:35 TESTCLASSPATH=J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdk-tests/TKG/test_output_16101954855260/jdk_jdi_0/work/classes/1/com/sun/jdi \
12:47:35 COMPILEJAVA=J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdkbinary/j2sdk-image \
12:47:35 TESTJAVA=J:/jenkins/workspace/Test_openjdk8_hs_sanity.openjdk_x86-64_windows/openjdkbinary/j2sdk-image \
12:47:35 TESTVMOPTS='-ea -esa -Xmx512m -XX:+UseCompressedOops' \
12:47:35 TESTTOOLVMOPTS='-J-ea -J-esa -J-Xmx512m -J-XX:+UseCompressedOops' \
12:47:35 TESTJAVACOPTS= \
12:47:35 TESTJAVAOPTS= \
12:47:35 TESTTIMEOUTFACTOR=8.0 \
12:47:35 TESTROOT='J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test' \
12:47:35 FS='\' \
12:47:35 PS=; \
12:47:35 NULL=NUL \
12:47:35 sh \
12:47:35 'J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\openjdk\openjdk-jdk\jdk\test\com\sun\jdi\PrivateTransportTest.sh'
12:47:35
12:47:35 TEST RESULT: Failed. Execution failed: exit code 1
12:47:35 --------------------------------------------------
12:48:02 Test results: passed: 111; failed: 1
12:48:07 Report written to J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\jvmtest\openjdk\report\html\report.html
12:48:07 Results written to J:\jenkins\workspace\Test_openjdk8_hs_sanity.openjdk_x86-64_windows\openjdk-tests\TKG\test_output_16101954855260\jdk_jdi_0\work
12:48:07 Error: Some tests failed or other problems occurred.
12:48:07
12:48:07 jdk_jdi_0_FAILED
```

Start with the failing jdk_jdi_0 job output and the test entry point com/sun/jdi/PrivateTransportTest.sh. Reproduce the Windows 64-bit run and inspect how the JDWP library path is assembled, especially the long workspace path. Done means the test no longer fails with the JDWP library-path error in the referenced job.

Written by the indexing model from the issue text.