Java threads stalled in InetAddress.getLocalHost or Inet4AddressImpl.getHostByAddr

Issue

• We have java/JBoss threads getting stalled in the following call:

"ajp-127.0.0.1-8009-1" daemon prio=10 tid=0x00002aaab468b000 nid=0x144f runnable [0x0000000046cda000]
   java.lang.Thread.State: RUNNABLE
    at java.net.Inet4AddressImpl.getLocalHostName(Native Method)
    at java.net.InetAddress.getLocalHost(InetAddress.java:1342)

• Or stalled in:

"ajp-127.0.0.1-8009-1" daemon prio=10 tid=0x00007fc6e828a800 nid=0x5892 runnable [0x00007fc67b4c6000]
   java.lang.Thread.State: RUNNABLE
    at java.net.Inet4AddressImpl.getHostByAddr(Native Method)
    at java.net.InetAddress$1.getHostByAddr(InetAddress.java:880)
    at java.net.InetAddress.getHostFromNameService(InetAddress.java:559)
    at java.net.InetAddress.getCanonicalHostName(InetAddress.java:530)
    at org.rhq.core.pc.PluginContainerConfiguration.getContainerName(PluginContainerConfiguration.java:700)
    at org.rhq.core.pc.inventory.InventoryManager.discoverPlatform(InventoryManager.java:1651)
    at org.rhq.core.pc.inventory.InventoryManager.executePlatformScan(InventoryManager.java:445)
    at org.rhq.core.pc.inventory.AutoDiscoveryExecutor.pluginDiscovery(AutoDiscoveryExecutor.java:154)
    at org.rhq.core.pc.inventory.AutoDiscoveryExecutor.call(AutoDiscoveryExecutor.java:104)
    at org.rhq.core.pc.inventory.AutoDiscoveryExecutor.call(AutoDiscoveryExecutor.java:70)