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Split into per-article modules and add the method-security module

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Moves the existing virtual-thread/context-propagation project into
context-propagation/ and adds method-security/ for the Spring Security 7
method-security article: nine runnable demos, fourteen assertions, and every
transcript the article quotes, regenerated by scripts/run-all.sh.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RSrsDSRKVsY588yFiMJMo9
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asmhatre
2026-08-25 02:01:29 +00:00
parent 9f950bffa9
commit 5e9e7f1b12
65 changed files with 4088 additions and 119 deletions
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37
method-security/docs/output/demo3.txt Normal file
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==============================================================================
Demo 3 -- @PreAuthorize on methods the proxy cannot override
==============================================================================
SLF4J(W): No SLF4J providers were found.
SLF4J(W): Defaulting to no-operation (NOP) logger implementation
SLF4J(W): See https://www.slf4j.org/codes.html#noProviders for further details.
alice has ROLE_USER. Every method below says hasRole('ADMIN').
--------------------------------------------------------------
public (overridable) DENIED -> AuthorizationDeniedException: Access Denied
public final (NOT overridable) ALLOWED -> final payload
static (NOT overridable) ALLOWED -> static payload
package-private (overridable, same package) DENIED -> AuthorizationDeniedException: Access Denied
private, reached via a public wrapper ALLOWED -> private payload
What the proxy actually overrode
--------------------------------
publicAdminOnly declared final=false overridden by proxy=true
finalAdminOnly declared final=true overridden by proxy=false
packagePrivateAdminOnly declared final=false overridden by proxy=true
proxy class -> com.ankurm.methodsec.Demo3NonProxyable$Vault$$SpringCGLIB$$0
A JDK dynamic proxy only advises methods that are ON the interface
------------------------------------------------------------------
proxy is a JDK proxy -> true
proxied interfaces -> [interface com.ankurm.methodsec.Demo3NonProxyable$LedgerOperations]
onTheInterface() (advised) DENIED -> AuthorizationDeniedException: Access Denied
notOnTheInterface() is public and annotated, but the JDK proxy does not
implement it at all -- a caller cannot even reach it without casting to
the implementation class, and that cast throws ClassCastException.
cast proxy to Ledger impl class DENIED -> ClassCastException: class jdk.proxy2.$Proxy18 cannot be cast to class com.ankurm.methodsec.Demo3NonProxyable$Ledger (jdk.proxy2.$Proxy18 is in module jdk.proxy2 of loader 'app'; com.ankurm.methodsec.Demo3NonProxyable$Ledger is in unnamed module of loader 'app')
A final CLASS is the loud one
-----------------------------
startup FAILED -> BeanCreationException
root cause -> java.lang.IllegalArgumentException
message -> Cannot subclass final class com.ankurm.methodsec.Demo3NonProxyable$SealedVault