[KARAF-5184] ClassLoader leak when org.apache.karaf.shell.core bundle is refreshed

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1.1
• Fix Version/s: 4.1.2, 4.2.0.M1
• Assignee: Grzegorz Grzybek
• Reporter: Grzegorz Grzybek
• Created: 08/Jun/17 08:33
• Updated: 19/Dec/19 17:29
• Resolved: 08/Jun/17 14:18

Description

I have this chain of references leading to old BundleRevision of org.apache.karaf.shell.core bundle:

this     - value: org.apache.felix.framework.BundleWiringImpl #14
 <- m_wiring     - class: org.apache.felix.framework.BundleWiringImpl$BundleClassLoader, value: org.apache.felix.framework.BundleWiringImpl #14
  <- <classLoader>     - class: org.apache.karaf.util.jaas.JaasHelper$OsgiSubjectDomainCombiner, value: org.apache.felix.framework.BundleWiringImpl$BundleClassLoader #11
   <- <class>     - class: org.apache.karaf.util.jaas.JaasHelper$OsgiSubjectDomainCombiner, value: org.apache.karaf.util.jaas.JaasHelper$OsgiSubjectDomainCombiner class JaasHelper$OsgiSubjectDomainCombiner
    <- combiner     - class: java.security.AccessControlContext, value: org.apache.karaf.util.jaas.JaasHelper$OsgiSubjectDomainCombiner #1
     <- inheritedAccessControlContext (thread object)     - class: java.lang.Thread, value: java.security.AccessControlContext #60

Could be related to jline:

"JLine terminal non blocking reader thread" #145 daemon prio=5 os_prio=0 tid=0x00007f046822c000 nid=0x43aa runnable [0x00007f0474b35000]
   java.lang.Thread.State: RUNNABLE
	at java.io.FileInputStream.readBytes(Native Method)
	at java.io.FileInputStream.read(FileInputStream.java:255)
	at org.jline.utils.InputStreamReader.read(InputStreamReader.java:270)
	- locked <0x00000000e0f0ed90> (a java.io.FileInputStream)
	at org.jline.utils.InputStreamReader.read(InputStreamReader.java:200)
	- locked <0x00000000e0f0ed90> (a java.io.FileInputStream)
	at org.jline.utils.NonBlockingReader.run(NonBlockingReader.java:273)
	at java.lang.Thread.run(Thread.java:748)
...
"JLine terminal non blocking reader thread" #78 daemon prio=5 os_prio=0 tid=0x00007f0470039000 nid=0x4369 runnable [0x00007f0407ffe000]
   java.lang.Thread.State: RUNNABLE
	at java.io.FileInputStream.readBytes(Native Method)
	at java.io.FileInputStream.read(FileInputStream.java:255)
	at org.jline.utils.InputStreamReader.read(InputStreamReader.java:270)
	- locked <0x00000000e081c5f8> (a java.io.FileInputStream)
	at org.jline.utils.InputStreamReader.read(InputStreamReader.java:200)
	- locked <0x00000000e081c5f8> (a java.io.FileInputStream)
	at org.jline.utils.NonBlockingReader.run(NonBlockingReader.java:273)
	at java.lang.Thread.run(Thread.java:748)