Could not initialize class com.documentum.fc.common.DfLogger

gangadharak

Hi Team,

we are using 21.4 dfc along with spring boot, during IDF session creation it's throwing NoClassDefFoundError. when I create seperate java project and try to execute below code it's not throwing any exception.

spring project some jar conflicting with dfc.jar , is there any way to figure out which jars causing problem?.

  IDfClientX clientx = new DfClientX();

  IDfClient client = clientx.getLocalClient();

  // create a Session Manager object

  IDfSessionManager sMgr = client.newSessionManager();

  // create an IDfLoginInfo object named loginInfoObj

  IDfLoginInfo loginInfoObj = clientx.getLoginInfo();

  loginInfoObj.setUser(user);

  if (pass != null) {

   loginInfoObj.setPassword(pass);

  }

  loginInfoObj.setDomain(null);

  sMgr.setIdentity(docbase, loginInfoObj);

Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class com.documentum.fc.common.DfLogger

at com.documentum.fc.common.DfNewInterprocessLockImpl.release(DfNewInterprocessLockImpl.java:148)

at com.documentum.fc.common.DfNewInterprocessLock.release(DfNewInterprocessLock.java:28)

at com.documentum.fc.client.DfSimpleDbor.read(DfSimpleDbor.java:483)

at com.documentum.fc.client.DfSimpleDbor.setURL(DfSimpleDbor.java:133)

at com.documentum.fc.client.DfSimpleDbor.<init>(DfSimpleDbor.java:66)

at com.documentum.fc.client.DfClient$ClientImpl.<init>(DfClient.java:352)

at com.documentum.fc.client.DfClient.<clinit>(DfClient.java:786)

at com.documentum.com.DfClientX.getLocalClient(DfClientX.java:43)

at com.juliusbaer.itint.chn.documentmanagement.util.DocumentumSessionUtil.createSessionManager(DocumentumSessionUtil.java:78)

at com.juliusbaer.itint.chn.documentmanagement.util.DocumentumSessionUtil.main(DocumentumSessionUtil.java:145)

Hicham Bahi

Did you patch log4j2? If you did, perhaps you forgot to update the META-INF/MANIFEST.MF file within dfc.jar?

gangadharak

Thank you for the reply

No I didn't patch any log4j am using as is DFC jar. Also, as I mentioned when I place the dfc21.4.jar in spring project it's failing to create session. if i place same create session code in standalone project it's working fine.

Hicham Bahi

I've used DFC and spring boot successfully before. In any case, I recommend that you move to DFC 22.1 since it comes with the latest log4j2 libraries (i.e. without the infamous Log4shell vulnerability). Patching DFC 21.4 is a pain in the neck.

S_S_Charan

if you are using DFC 21.4, then update classpath to use java log4j-1.2-api-2.17.1.jar log4j-api-2.17.1.jar log4j-core-2.17.1.jar, this will resolve the issue (dfc.jar/META-INF/MANIFEST.MF refers to wrong versions of above jars)

marco_nick

Hi,

I had the same problem with dfc 23.2 and spring boot. I resolved the problem adding log4j-jul and log4j-slf4j-impl. I also exclude from spring-boot-starter the artifact spring-boot-starter-logging.

JCHall

Marco, Are you using Spring Boot/DFC with SSO?

Many thanks

marco_nick

Hi JCHall,

we use Microsoft Entra ID tokens to authenticate our custom spring boot app and then dfc login ticket to authenticate to documentum.

MN