FULL PRODUCT VERSION :
Picked up JAVA_TOOL_OPTIONS: -Dsun.nio.ch.disableSystemWideOverlappingFileLockCh
eck=true
java version "1.6.0_45"
Java(TM) SE Runtime Environment (build 1.6.0_45-b06)
Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Windows 7

A DESCRIPTION OF THE PROBLEM :
The SAP PI Java Webstart application (SAP PI Integration Builder, SAP PI Service Builder) freezes when launched via P4S. There seems to be a stackoverflow error now while reading the iaik_jce.jar.

REGRESSION. Last worked in version 6u45


ERROR MESSAGES/STACK TRACES THAT OCCUR :
cache: Reading Signers from 2144 https://sap-system.domain:443/rep/jce/iaik_jce.jar | C:\Users\Username\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\36\355b8ee4-2771be85.idx
cache: Reading Signers from 2144 https://sap-system.domain:443/rep/jce/iaik_jce.jar | C:\Users\Username\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\36\355b8ee4-2771be85.idx
cache: Reading Signers from 2144 https://sap-system.domain:443/rep/jce/iaik_jce.jar | C:\Users\Username\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\36\355b8ee4-2771be85.idx
Exception in thread "AWT-EventQueue-3" java.lang.StackOverflowError
at java.io.Win32FileSystem.canonicalize(Unknown Source)
at java.io.File.getCanonicalPath(Unknown Source)
at sun.security.provider.PolicyFile.canonPath(Unknown Source)
at java.io.FilePermission$1.run(Unknown Source)
at java.io.FilePermission$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.io.FilePermission.init(Unknown Source)
at java.io.FilePermission.<init>(Unknown Source)
at java.lang.SecurityManager.checkRead(Unknown Source)
at java.io.RandomAccessFile.<init>(Unknown Source)
at com.sun.deploy.util.SyncFileAccess.openLockFileObject(Unknown Source)
at com.sun.deploy.util.SyncFileAccess.openLockRandomAccessFile(Unknown Source)
at com.sun.deploy.cache.CacheEntry.openLockIndexFile(Unknown Source)
at com.sun.deploy.cache.CacheEntry.access$000(Unknown Source)
at com.sun.deploy.cache.CacheEntry$12.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.cache.CacheEntry.readSigners(Unknown Source)
at com.sun.deploy.cache.CacheEntry.getSignerMap(Unknown Source)
at com.sun.deploy.cache.CachedJarFile.getSignerMap(Unknown Source)
at com.sun.deploy.cache.CachedJarFile.getCodeSource(Unknown Source)
at com.sun.deploy.cache.DeployCacheJarAccessImpl.getCodeSource(Unknown Source)
at com.sun.deploy.security.CPCallbackHandler$ChildElement.checkResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.checkResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.security.Provider$Service.getImplClass(Unknown Source)
at java.security.Provider$Service.newInstance(Unknown Source)
at java.security.KeyFactory.nextSpi(Unknown Source)
at java.security.KeyFactory.<init>(Unknown Source)
at java.security.KeyFactory.getInstance(Unknown Source)
at iaik.asn1.structures.AlgorithmID.getKeyFactoryInstance(Unknown Source)
at iaik.asn1.structures.AlgorithmID.getKeyFactoryInstance(Unknown Source)
at iaik.x509.PublicKeyInfo.getPublicKey(Unknown Source)
at iaik.x509.X509Certificate.c(Unknown Source)
at iaik.x509.X509Certificate.decode(Unknown Source)
at iaik.x509.X509Certificate.<init>(Unknown Source)
at iaik.x509.CertificateFactory.engineGenerateCertificate(Unknown Source)
at java.security.cert.CertificateFactory.generateCertificate(Unknown Source)
at java.security.cert.Certificate$CertificateRep.readResolve(Unknown Source)
at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at java.io.ObjectStreamClass.invokeReadResolve(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at com.sun.deploy.cache.CacheEntry$12.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.cache.CacheEntry.readSigners(Unknown Source)
at com.sun.deploy.cache.CacheEntry.getSignerMap(Unknown Source)
at com.sun.deploy.cache.CachedJarFile.getSignerMap(Unknown Source)
at com.sun.deploy.cache.CachedJarFile.getCodeSource(Unknown Source)
at com.sun.deploy.cache.DeployCacheJarAccessImpl.getCodeSource(Unknown Source)
at com.sun.deploy.security.CPCallbackHandler$ChildElement.checkResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.checkResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.security.Provider$Service.getImplClass(Unknown Source)
at java.security.Provider$Service.newInstance(Unknown Source)
at java.security.KeyFactory.nextSpi(Unknown Source)
at java.security.KeyFactory.<init>(Unknown Source)
at java.security.KeyFactory.getInstance(Unknown Source)
at iaik.asn1.structures.AlgorithmID.getKeyFactoryInstance(Unknown Source)
at iaik.asn1.structures.AlgorithmID.getKeyFactoryInstance(Unknown Source)
at iaik.x509.PublicKeyInfo.getPublicKey(Unknown Source)
at iaik.x509.X509Certificate.c(Unknown Source)
at iaik.x509.X509Certificate.decode(Unknown Source)
at iaik.x509.X509Certificate.<init>(Unknown Source)
at iaik.x509.CertificateFactory.engineGenerateCertificate(Unknown Source)
at java.security.cert.CertificateFactory.generateCertificate(Unknown Source)
at java.security.cert.Certificate$CertificateRep.readResolve(Unknown Source)
at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at java.io.ObjectStreamClass.invokeReadResolve(Unknown Source)
at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
at com.sun.deploy.cache.CacheEntry$12.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.cache.CacheEntry.readSigners(Unknown Source)
at com.sun.deploy.cache.CacheEntry.getSignerMap(Unknown Source)
at com.sun.deploy.cache.CachedJarFile.getSignerMap(Unknown Source)
at com.sun.deploy.cache.CachedJarFile.getCodeSource(Unknown Source)
at com.sun.deploy.cache.DeployCacheJarAccessImpl.getCodeSource(Unknown Source)
at com.sun.deploy.security.CPCallbackHandler$ChildElement.checkResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.checkResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getResource(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)

REPRODUCIBILITY :
This bug can be reproduced occasionally.

CUSTOMER SUBMITTED WORKAROUND :
Disable P4S and use P4 protocol.