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standalnoe jre
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‎.github/workflows/reproduce-issue-7.yml‎

Lines changed: 38 additions & 64 deletions
Original file line numberDiff line numberDiff line change
@@ -13,7 +13,7 @@ jobs:
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steps:
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- uses: actions/checkout@v4
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- name: Set up Temurin JDK 8
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- name: Set up Temurin JDK 8 (JAVA_HOME will point here)
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uses: actions/setup-java@v4
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with:
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java-version: '8'
@@ -22,78 +22,52 @@ jobs:
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- name: Build jar
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run: mvn package -DskipTests -q
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- name: Show preconditions
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- name: Download Temurin JRE-only archive (simulates Oracle standalone JRE)
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shell: pwsh
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run: |
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Write-Host "JAVA_HOME: $env:JAVA_HOME"
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Write-Host ""
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Write-Host "attach.dll locations:"
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Write-Host " jre\bin\attach.dll : $(Test-Path "$env:JAVA_HOME\jre\bin\attach.dll")"
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Write-Host " bin\attach.dll : $(Test-Path "$env:JAVA_HOME\bin\attach.dll")"
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Write-Host " lib\tools.jar : $(Test-Path "$env:JAVA_HOME\lib\tools.jar")"
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Write-Host ""
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Write-Host "JVM library paths:"
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java -XshowSettings:property -version 2>&1 | Select-String "library.path"
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Write-Host ""
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Write-Host "Expected:"
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Write-Host " jre\bin\attach.dll = True (attach.dll only in jre\bin, not jdk\bin)"
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Write-Host " bin\attach.dll = False (key condition: missing from java.library.path)"
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Write-Host " java.library.path = ...\bin (jdk\bin - where attach.dll is absent)"
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Write-Host " sun.boot.library.path = ...\jre\bin (where attach.dll actually lives)"
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$url = "<https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u442-b06/OpenJDK8U-jre_x64_windows_hotspot_8u442b06.zip>"
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Invoke-WebRequest -Uri $url -OutFile jre8.zip
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Expand-Archive jre8.zip -DestinationPath jre8
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$jreHome = (Get-ChildItem jre8 -Directory)[0].FullName
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echo "STANDALONE_JRE=$jreHome" >> $env:GITHUB_ENV
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- name: Reproduce the error
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- name: Show preconditions
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shell: pwsh
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# Expected failure:
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# java.util.ServiceConfigurationError:
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# com.sun.tools.attach.spi.AttachProvider:
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# Provider sun.tools.attach.WindowsAttachProvider could not be instantiated
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#
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# Root cause:
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# AgentAttach creates URLClassLoader(cp, null) to load tools.jar.
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# WindowsAttachProvider has a static initializer: System.loadLibrary("attach").
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# When called from a class loaded by a non-bootstrap classloader,
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# System.loadLibrary searches java.library.path (jdk\bin) — not sun.boot.library.path (jre\bin).
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# Temurin JDK 8 only ships attach.dll in jre\bin, so the load fails with UnsatisfiedLinkError.
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# The SPI loader wraps that in ServiceConfigurationError("could not be instantiated").
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#
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# The "list" subcommand is enough to trigger it: VirtualMachine.list() calls
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# AttachProvider.providers() which triggers SPI loading of WindowsAttachProvider.
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run: |
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$jar = (Get-ChildItem target\extract-tls-secrets-*.jar)[0].FullName
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Write-Host "Jar: $jar"
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Write-Host "=== JDK (JAVA_HOME) ==="
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Write-Host "Path : $env:JAVA_HOME"
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Write-Host "tools.jar : $(Test-Path "$env:JAVA_HOME\lib\tools.jar")"
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Write-Host "attach.dll : $(Test-Path "$env:JAVA_HOME\jre\bin\attach.dll")"
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Write-Host ""
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Write-Host "Command: java -jar $jar list"
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Write-Host " (tools.jar is NOT on the classpath — this is the key condition)"
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Write-Host "=== Standalone JRE (on PATH in real-world scenario) ==="
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Write-Host "Path : $env:STANDALONE_JRE"
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Write-Host "attach.dll : $(Test-Path "$env:STANDALONE_JRE\bin\attach.dll")"
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Write-Host "tools.jar : $(Test-Path "$env:STANDALONE_JRE\lib\tools.jar")"
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Write-Host ""
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java -jar $jar list
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continue-on-error: true
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check-jre:
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runs-on: windows-latest
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Write-Host "JVM library paths when launched from standalone JRE:"
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& "$env:STANDALONE_JRE\bin\java.exe" -XshowSettings:property -version 2>&1 |
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Select-String "library.path"
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steps:
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- name: Download Temurin JRE-only archive (not the JDK)
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- name: Reproduce error
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shell: pwsh
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# Explicitly invoke the standalone JRE's java.exe (not the JDK's).
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# JAVA_HOME still points to the JDK so tools.jar is found and
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# the URLClassLoader path in AgentAttach is taken.
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# sun.boot.library.path is derived from the standalone JRE's jvm.dll
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# and points to a bin\ with no attach.dll -- causing UnsatisfiedLinkError
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# inside WindowsAttachProvider's static initializer, which the SPI loader
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# wraps into:
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# ServiceConfigurationError: com.sun.tools.attach.spi.AttachProvider:
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# Provider sun.tools.attach.WindowsAttachProvider could not be instantiated
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run: |
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$url = "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u442-b06/OpenJDK8U-jre_x64_windows_hotspot_8u442b06.zip"
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Write-Host "Downloading JRE-only zip (no JDK)..."
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Invoke-WebRequest -Uri $url -OutFile jre8.zip
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Expand-Archive jre8.zip -DestinationPath jre8
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$java = "$env:STANDALONE_JRE\bin\java.exe"
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$jar = (Get-ChildItem target\extract-tls-secrets-*.jar)[0].FullName
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- name: Inspect JRE structure and check for attach.dll
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shell: pwsh
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run: |
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$jre = (Get-ChildItem jre8 -Directory)[0].FullName
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Write-Host "JRE root: $jre"
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Write-Host "java.exe : $java (standalone JRE - no attach.dll)"
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Write-Host "JAVA_HOME: $env:JAVA_HOME (JDK - has tools.jar)"
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Write-Host "jar : $jar"
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Write-Host ""
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Write-Host "Top-level directories:"
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Get-ChildItem $jre -Directory | Select-Object -ExpandProperty Name
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Write-Host ""
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Write-Host "DLLs in bin\:"
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Get-ChildItem "$jre\bin\*.dll" | Select-Object Name | Sort-Object Name
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Write-Host ""
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Write-Host "attach.dll present : $(Test-Path "$jre\bin\attach.dll")"
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Write-Host "tools.jar present : $(Test-Path "$jre\lib\tools.jar")"
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Write-Host ""
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Write-Host "JVM library paths when running this JRE:"
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& "$jre\bin\java.exe" -XshowSettings:property -version 2>&1 | Select-String "library.path"
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Write-Host "Running..."
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& $java -jar $jar list
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continue-on-error: true
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