JRE CRASHES/HANGS THE BROWSER HAVING HYPERTHREADING ENABLED (Doc ID 601534.1)

Last updated on OCTOBER 31, 2016

Applies to:

Oracle Forms - Version 10.1.2 and later
Information in this document applies to any platform.

Symptoms

Forms running with JRE/JPI .

Sometimes sessions crash producing an error file with :

.....Current thread (0x0715e8b0):  JavaThread "Thread-7" [_thread_in_native, id=2284]
siginfo: ExceptionCode=0xc0000005, reading address 0x2e332e31

Registers:
EAX=0x00000002, EBX=0x26c6f030, ECX=0x2e332e31, EDX=0x438de9e4
ESP=0x438de94c, EBP=0x438de9a0, ESI=0x26c6f030, EDI=0x438df1e4
EIP=0x6d1f7007, EFLAGS=0x00010293

or

# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d1f7906, pid=2496, tid=2624
# Java VM: Java HotSpot(TM) Client VM (1.5.0_15-b04 mixed mode, sharing)
# C [deploy.dll+0x7906]
--------------- T H R E A D ---------------
Current thread (0x05effbf0): JavaThread "Thread-6" [_thread_in_native, id=2624]
siginfo: ExceptionCode=0xc0000005, writing address 0x2e312e3a
...
Stack: [0x06810000,0x06910000), sp=0x0690ec1c, free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [deploy.dll+0x7906]
C [deploy.dll+0x6d01]
C [deploy.dll+0x3698]

The java-console contains the "access denied error" when trying to load webutil:

java.security.AccessControlException: access denied (java.lang.RuntimePermission accessClassInPackage.sun.java2d)
at java.security.AccessControlContext.checkPermission(Unknown Source )

 or

Exception in thread "AWT-EventQueue-3" java.lang.NoClassDefFoundError: oracle/ewt/laf/oracle/OracleTabPainter
    at oracle.ewt.laf.oracle.OracleTabBarUI.getTabPainter(Unknown Source)
    at oracle.ewt.tabBar.TabBarItem.getPreferredSize(Unknown Source)
    at oracle.ewt.tabBar.TabBar.getPreferredSize(Unknown Source)

Sometimes, Forms/Webutil simply hangs upon start, no crash is visible. Users only see an empty browser.

Cause

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