Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

PAYARA-4131: Fix race conditions in resource class generation #4216

Merged
merged 1 commit into from Sep 12, 2019

Conversation

@pdudits
Copy link
Contributor

pdudits commented Sep 12, 2019

Resouce provider depends on quite unique (to use a neutral term) synchronization in order to generate classes that describe admin rest api. On every request it will try to generate them, and rely on static set in ResourcesGeneratorBase to remember which ones are done.

This breaks when second request is received while the first one builds the resources, and therefore needs to be synchronized.

@pdudits

This comment has been minimized.

Copy link
Contributor Author

pdudits commented Sep 12, 2019

Jenkins test please

@pdudits pdudits requested a review from jGauravGupta Sep 12, 2019
@@ -192,12 +192,14 @@ private void registerExtendedWadlConfig(Set<Class<?>> classes,

private void generateASM(ServiceLocator habitat) {
try {
Domain entity = habitat.getService(Domain.class);
Dom dom = Dom.unwrap(entity);
synchronized (RestManagementResourceProvider.class) {

This comment has been minimized.

Copy link
@svendiedrichsen

svendiedrichsen Sep 12, 2019

Contributor

Does it need to be synchronized against the class? What about some lock object at the instance?

This comment has been minimized.

Copy link
@pdudits

pdudits Sep 12, 2019

Author Contributor

The underlying 'cache' is static, and generation modifies classloader. I felt it's safer to also have static synchronization point here (also stumbled upon similar synchronization block as I was diagnising this). Yes, I could make a static lock for that purpose, but would it make any difference?

@pdudits pdudits merged commit 473b0bf into payara:master Sep 12, 2019
58 checks passed
58 checks passed
Payara Quick Build and Test Quick build and test passed!
Details
security/snyk - api/payara-api/pom.xml (payara-ci) No new issues
Details
security/snyk - api/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/admin/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/admingui/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/ant-tasks/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/appclient/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/batch/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/common/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/concurrent/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/connectors/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/core/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/deployment/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/distributions/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/ejb/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/extras/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/featuresets/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/flashlight/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/grizzly/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/ha/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/installer/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/jdbc/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/jms/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/load-balancer/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/orb/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/osgi-platforms/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/packager/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/payara-appserver-modules/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/persistence/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/registration/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/resources/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/security/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/tests/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/transaction/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/web/pom.xml (payara-ci) No new issues
Details
security/snyk - appserver/webservices/pom.xml (payara-ci) No new issues
Details
security/snyk - copyright/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/admin/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/cluster/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/common/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/core/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/deployment/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/diagnostics/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/distributions/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/flashlight/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/grizzly/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/hk2/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/osgi-platforms/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/packager/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/payara-modules/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/resources-l10n/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/resources/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/security/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/test-utils/pom.xml (payara-ci) No new issues
Details
security/snyk - nucleus/tests/pom.xml (payara-ci) No new issues
Details
security/snyk - pom.xml (payara-ci) No new issues
Details
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Projects
None yet
3 participants
You can’t perform that action at this time.