dBuggr » java

Resolve Oracle Net Services Configuration (netca) Java Libclntsh.so Error

smallwei — Thu, 26 Jan 2012 22:31:12 +0000

Resolve Oracle Net Services Configuration (netca) java libclntsh.so error
If you receive the following error during while trying to bring up netca in Linux, here is a tip for you.

#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
#  SIGSEGV (0xb) at pc=0x00002aaab274e9f1, pid=10132, tid=47652693257888
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.5.0_17-b03 mixed mode)
# Problematic frame:
# C  [libclntsh.so.11.1+0x62a9f1]  snlinGetAddrInfo+0x1b1
#
# An error report file with more information is saved as hs_err_pid10132.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#
/app/oracle/product/11.2.0/dbhome_1/bin/netca: line 178: 10132 Aborted                 $JRE $JRE_OPTIONS -classpath $CLASSPATH oracle.net.ca.NetCA $*

The Default Password for Sun/Oracle JAVA CAcerts Key Store

milly — Wed, 24 Aug 2011 06:58:10 +0000

The Default password for Sun/Oracle JAVA CAcerts key store Related posts:Default Admin Password for Oracle Web Services Manager (WSM) Default Oracle Weblogic Server Administrator Password Fix Java.sql.SQLRecoverableException: I/O Exception: Connection Reset Issue on L… Related posts:

Resolve Weblogic Java.io.IOException: Stream Closed.; No Available Router to Des…

smallwei — Wed, 17 Aug 2011 20:32:16 +0000

Resolve Weblogic java.io.IOException: Stream closed.; No available router to destination Error
If you are getting the following error when using SSL or Administration Port in Weblogic, here is a tip to fix it.

Error:

This Exception occurred at Thu Jun 10 08:19:39 CDT 2011.
javax.naming.CommunicationException [Root exception is java.net.ConnectException: t3s://domain-name:7002: Destination unreachable; nested exception is:
java.io.IOException: Stream closed.; No available router to destination]
at weblogic.jndi.internal.ExceptionTranslator.toNamingException(ExceptionTranslator.java:40)
at weblogic.jndi.WLInitialContextFactoryDelegate.toNamingException(WLInitialContextFactoryDelegate.java:783)
at weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:365)
at weblogic.jndi.Environment.getContext(Environment.java:315)
at weblogic.jndi.Environment.getContext(Environment.java:285)
at weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:117)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.(InitialContext.java:197)
at weblogic.management.scripting.WLSTHelper.populateInitialContext(WLSTHelper.java:512)
at weblogic.management.scripting.WLSTHelper.initDeprecatedConnection(WLSTHelper.java:565)
at weblogic.management.scripting.WLSTHelper.initConnections(WLSTHelper.java:305)
at weblogic.management.scripting.WLSTHelper.connect(WLSTHelper.java:203)
at weblogic.management.scripting.WLScriptContext.connect(WLScriptContext.java:60)
at weblogic.management.scripting.utils.WLSTUtil.initializeOnlineWLST(WLSTUtil.java:125)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:160)
at org.python.core.PyMethod.__call__(PyMethod.java:96)

Fix Java.sql.SQLRecoverableException: I/O Exception: Connection Reset Issue on L…

milly — Thu, 28 Jul 2011 18:06:56 +0000

Fix java.sql.SQLRecoverableException: I/O Exception: Connection reset issue on Linux
If you encounter “java.sql.SQLRecoverableException: I/O Exception: Connection reset” issue on Linux or Sun, the following tip might be able to help you.

java.security.SecureRandom is a standard API provided by sun. Among various methods offered by this class void nextBytes(byte[]) is one. This method is used for generating random bytes. Oracle 11g JDBC drivers use this API to generate random number during login.

You might see errors similar to the following:

java.sql.SQLRecoverableException: IO Error: Connection reset
        at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:1028)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1307)
        at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3449)
        at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3550)
        at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1374)
        at sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at oracle.ucp.jdbc.proxy.StatementProxyFactory.invoke(StatementProxyFactory.java:230)
        at oracle.ucp.jdbc.proxy.PreparedStatementProxyFactory.invoke(PreparedStatementProxyFactory.java:124)
        at $Proxy86.execute(Unknown Source)

Fix Weblogic/NodeManager ERROR: Transport Error 202: Bind Failed: Address Alread…

milly — Wed, 20 Jul 2011 18:13:41 +0000

Fix Weblogic/NodeManager ERROR: transport error 202: bind failed: Address already in use
During Oracle SOA, AIA or other Fusion Middleware components installation, you might run into the following errors during startup:

ERROR: transport error 202: bind failed: Address already in use
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [../../../src/share/back/debugInit.c:690]
FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197)
/app/oracle/middleware/user_projects/domains/SOA_domain/bin/startWebLogic.sh: line 179: 15926 Aborted                 ${JAVA_HOME}/bin/java ${JAVA_VM} ${MEM_ARGS} -Dweblogic.Name=${SERVER_NAME} -Djava.security.policy=${WL_HOME}/server/lib/weblogic.policy ${JAVA_OPTIONS} ${PROXY_SETTINGS} ${SERVER_CLASS}

Here is a quick fix for it

How to Use Command to Identify/check/verify Maximum JAVA Heap Size for Applicati…

smallwei — Tue, 21 Jun 2011 02:42:26 +0000

How to use command to identify/check/verify maximum JAVA heap size for application If you need to identify the maximum java (JVM) heap size allowed for your particular application, OS, server, environment, you can run the following command to find out. Related posts:Resolving ORABPEL-05002: “java.lang.OutOfMemoryError: Java Heap Space” How to Check Micro Focus Cobol License in Unix How to Run/execute [...] Related posts:

Resolve ORA-12505: Using Oracle RAC and Java JDBC Thin Client Connection

smallwei — Wed, 01 Jun 2011 06:15:32 +0000

Resolve ORA-12505: Using Oracle RAC and Java JDBC thin client Connection
If you have Java application and use JDBC to connect to Oracle database, typically you use the following format to connect:
jdbc:oracle:thin:@::However, this would not work if you have Oracle RAC database. Following is the correct JDBC connection string for connecting to a RAC database

NetBeans Java SetResizable()

Techie — Tue, 31 May 2011 22:41:47 +0000

NetBeans Java setResizable() Related posts:Resolving ORABPEL-05002: “java.lang.OutOfMemoryError: Java Heap Space” Java.lang.ClassNotFoundException: Org.apache.commons.logging.LogFactory when Dev… Differences between C++ and Java Related posts:

Java.lang.ClassNotFoundException: Org.apache.commons.logging.LogFactory when Dev…

Alex — Fri, 07 May 2010 18:04:00 +0000

java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory when developing java Related posts:Java.lang.NoClassDefFoundError: Org/apache/commons/logging/LogFactory Exception: NoClassDefFoundError: Org/apache/commons/lang/exception/NestableRunti… Resolving ORABPEL-05002: “java.lang.OutOfMemoryError: Java Heap Space” Related posts:

Java, Getting a List of Available Encryption Algorithms

wirelessjava2002 — Wed, 07 Apr 2010 09:04:28 +0000

Java, Getting a list of available Encryption Algorithms Related posts:What is Public Private Key Exchange Encryption and How They Work in SSH How to Automate Encryption/decryption in Linux/Windows/Unix Using GPG with Passp… Lotus Notes Encryption Related posts: