Tomcat 7.0.70, JDK 1.7.0_80
$java -version
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)

There are many threads BLOCKED as below and due to this these threads are very slow. Anybody else experienced this? Am I hitting following JDK bug?

https://bugs.openjdk.java.net/browse/JDK-6432000

"http-bio-28080-exec-1155" daemon prio=10 tid=0x00007feca808e000 nid=0x5a31 waiting for monitor entry [0x00007feba3cf8000]
   java.lang.Thread.State: BLOCKED (on object monitor)
at sun.security.provider.X509Factory.getFromCache(X509Factory.java:215) - waiting to lock <0x00000006a00be6a8> (a java.lang.Class for sun.security.provider.X509Factory) at sun.security.provider.X509Factory.engineGenerateCertificate(X509Factory.java:94) at java.security.cert.CertificateFactory.generateCertificate(CertificateFactory.java:339) at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:747)
        - locked <0x00000006dd58da90> (a java.util.Hashtable)
at sun.security.provider.JavaKeyStore$JKS.engineLoad(JavaKeyStore.java:55)
        at java.security.KeyStore.load(KeyStore.java:1226)
at sun.security.ssl.TrustManagerFactoryImpl.getCacertsKeyStore(TrustManagerFactoryImpl.java:221) at sun.security.ssl.TrustManagerFactoryImpl.engineInit(TrustManagerFactoryImpl.java:51) at javax.net.ssl.TrustManagerFactory.init(TrustManagerFactory.java:250) at sun.security.ssl.SSLContextImpl.engineInit(SSLContextImpl.java:79)
        at javax.net.ssl.SSLContext.init(SSLContext.java:283)
at org.apache.http.ssl.SSLContexts.createDefault(SSLContexts.java:55) at org.apache.http.conn.ssl.SSLConnectionSocketFactory.getSocketFactory(SSLConnectionSocketFactory.java:172) at org.apache.http.impl.conn.BasicHttpClientConnectionManager.getDefaultRegistry(BasicHttpClientConnectionManager.java:117) at org.apache.http.impl.conn.BasicHttpClientConnectionManager.<init>(BasicHttpClientConnectionManager.java:161) at com.dice.api.util.service.DiceHTTPClient.getGetDeleteResponse(DiceHTTPClient.java:162)

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