Oracle Wallet Manager(OWM) :Exception in thread "main" java.lang.UnsatisfiedLinkError: owm2

Recently, we encounter the error as below in the Oracle Wallet Manager,

Exception in thread "main" java.lang.UnsatisfiedLinkError: owm2 (No such file or directory)
at java.lang.ClassLoader.loadLibraryWithPath(ClassLoader.java:993)
at java.lang.ClassLoader.loadLibraryWithClassLoader(ClassLoader.java:962)
at java.lang.System.loadLibrary(System.java:465)
at oracle.security.wallet.NZNative.(NZNative)
at java.lang.J9VMInternals.initializeImpl(Native Method)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
at oracle.security.admin.wltmgr.owma.OwmaApp.init(OwmaApp)
at oracle.sysman.emSDK.client.appContainer.WebApplication.launch(WebApplication.java:3446)
at oracle.sysman.emSDK.client.appContainer.WebApplication.main(WebApplication.java:3327)

To try to fix this error, we try to set the path for LD_LIBRARY_PATH to $ORACLE_HOME/lib but still the error persists. In the end , we found out that the error is due to the JDK , which we have upgrade from the existing 1.5 JDK to 1.6 JDK 64bit.

To fix it, we change the path in the file $ORACLE_HOME/bin/owm
JRE_HOME=/ApplTop/ias10gr2/app/product/10.1.3/jdk/jre
to JRE_HOME=/ApplTop/ias10gr2/app/product/10.1.3/jdk.orig/jre/ (Points back to original 1.5 JDK)