Java jre 7 0

Configuring JavaYou can configure which version is the default for use in the command line by using update-alternatives, which manages which symbolic links are used for different commands.sudo update-alternatives --config javaThe output will look something like the following.There are 5 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status------------------------------------------------------------* 0 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1081 auto mode 1 /usr/lib/jvm/java-6-oracle/jre/bin/java 1 manual mode 2 /usr/lib/jvm/java-7-oracle/jre/bin/java 2 manual mode 3 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java 1081 manual mode 4 /usr/lib/jvm/java-8-oracle/jre/bin/java 3 manual mode 5 /usr/lib/jvm/java-9-oracle/bin/java 4 manual modePress to keep the current choice[*], or type selection number:You can now choose the number to use as a default. This can also be done for other Java commands, such as the compiler (javac), the documentation generator (javadoc), the JAR signing tool (jarsigner), and more. You can use the following command, filling in the command you want to customize.sudo update-alternatives --config commandSetting the JAVA_HOME Environment VariableMany programs, such as Java servers, use the JAVA_HOME environment variable to determine the Java installation location. Copy the path from your preferred installation and then open /etc/environment using Sublime Text or your favourite text editor.sudo subl /etc/environmentAt the end of this file, add the following line, making sure to replace the highlighted path with your own copied path.JAVA_HOME="/usr/lib/jvm/java-8-oracle"Save and exit the file, and reload it: source /etc/environment.You can now test whether the environment variable has been set by executing the following command: echo $JAVA_HOME. This will return the path you just set.

Parameter cpuinfo displays information about your CPU and indicates whether or not the JVM can determine if hyper threading is enabled. Table 2-10 lists the parameters available for the -Xverbose option. Operation Format: -Xverbose: Where param is one of the parameters described in Table 2-10 and level the log level, as described in Log Levels. For Example: java -Xverbose:gcpause=debug myClass enables pause time sampling and information during a run and logs messages with detailed information of JRockit JVM’s behavior. Note:To use more than one parameter, separate them with a comma; for example: Table 2-10 -Xverbose Parameters This Parameter... Prints to the screen... class The names of classes loaded; sample output might look like this: [INFO ][class ] Initializing bootstrap classes...[INFO ][class ] created: # 0 java/lang/Object (/localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/rt.jar)[INFO ][class ] 0 java/lang/Object success (0.45 ms)[INFO ][class ] created: # 2 java/io/Serializable (/localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/rt.jar)[INFO ][class ] 2 java/io/Serializable success (0.08 ms) codegen The names of each method that is being compiled. Verbose output for codegen might look like this: [codegen] 0 : 17.9411 ms[codegen] 0 68592131 1 java.lang.Object.unlockFatReal_jvmpi (Ljava.lang.Object;Ljava.lang.Thread;I)V: 17.94 ms[codegen] 1 : 2.0262 ms[codegen] 0 0 2 java.lang.Object.acquireMonitor(Ljava.lang.Object;II)I: 19.97 ms[codegen] 2 : 4.4926 ms[codegen] 0 10 3 java.lang.Object.unlockFat(Ljava.lang.Object;Ljava.lang.Thread;I)V: 24.46 ms[codegen] 3 : 0.3328 ms cpuinfo Technical information about your CPUs. Verbose output for cpuinfo might look like this: [cpuinfo] Vendor: GenuineIntel[cpuinfo] Type: Original OEM[cpuinfo] Family: Pentium 4[cpuinfo] Brand: Intel(R) Pentium(R) 4 Mobile CPU 1.60GHz[cpuinfo] Supports: On-Chip FPU[cpuinfo] Supports: Virtual Mode Extensions [cpuinfo] Supports: Debugging Extensions [cpuinfo] Supports: Page Size Extensions exceptions Displays exception types and messages (excluding the common types of exceptions). Verbose output for exceptions might look like this: [excepti][00002] java/lang/NumberFormatException: null exceptions=debug Displays exception types and messages (excluding the common types of exceptions).It also displays stacktraces; Verbose output for exceptions=debug might look like this: [excepti][00002] java/lang/NumberFormatException: null at java/lang/Integer.parseInt(Ljava/lang/String;I)I(Integer. java:415) at java/lang/Integer.(Ljava/lang/String;)V(Integer. java:620) at sun/net/InetAddressCachePolicy.()V (InetAddressCachePolicy.java:77) at jrockit/vm/RNI.c2java(IIII)V(Native Method) at jrockit/vm/RNI.generateFixedCode(I)I(Native Method) at java/net/InetAddress.()V(InetAddress.java:640) at jrockit/vm/RNI.c2java(IIII)V(Native Method) at jrockit/vm/RNI.generateFixedCode(I)I(Native Method) at java/net/InetSocketAddress.(Ljava/lang/String;I)V (InetSocketAddress.java:124) at java/net/Socket.(Ljava/lang/String;I)V (Socket.java:178) at Ex.main([Ljava/lang/String;)V(Ex.java:5) at jrockit/vm/RNI.c2java(IIII)V(Native Method) --- End of stack trace exceptions=trace The same information as debug, but includes the common types of exceptions. Verbose output for exceptions=trace will look the same as -Xverbose:exceptions=debug but also prints exceptions of types: java.util.EmptyStackException java.lang.ClassNotFoundException java.security.PrivilegedActionException load The name of each loaded Java or native library: [INFO ][load ] opened zip /localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/rt.jar[INFO ][load ] opened zip/localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/jsse.jar[INFO ][load ] opened zip/localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/jce.jar[INFO ][load ] opened zip/localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/charsets.jar[INFO ][load ] Loaded native library:/localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/i386/libverify.so[INFO ][load ] Loaded native library:/localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/i386/libjava.so[INFO ][load ] Loaded native library:/localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/i386/native_threads/libhpi.so[INFO ][load ] Loaded native library:/localhome/jrockits/R27.5.0_R27.5.0-110_1.5.0/jre/lib/i386/libzip.so gcpause -Xverbose:gcpause gives the same output as -XgcPause. gcreport -Xverbose:gcreport gives the same output as -XgcReport. memdbg Turns on memory printout and adds new special memdbg printouts. Verbose output for memdbg might look like

Of the node followed by /getSwVersion as shown by the A arrow in Figure 7. Network connectivity to the node must exist for successful command execution. Figure 7 – Determine the ONS 15454/15327 Software Release J2SE JRE Setting This section lists the steps you must complete in order to specify appropriate settings for the J2SE JRE release version that you use. J2SE JRE Version 1.2.2 Complete these steps in order to specify the settings for J2SE JRE release 1.2.2: Choose Start > All Programs > Java Plugin Control Panel. In the Java (TM) Plug-in Properties screen, check the Enable Java Plug-in check box, and the Cache JARS in memory check box in the Basic tab (see Figure 8). Figure 8 – J2SE JRE Release 1.2.2: Basic Settings Go to the Advanced tab. Select the Use Java Plug-in Default option, and check the Enable Just In Time Compiler check box (see Figure 9). Figure 9 – J2SE JRE Release 1.2.2: Advanced Settings Go to the Proxies tab. Check the Use browser settings check box (see Figure 10). Figure 10 – J2SE JRE release 1.2.2: Proxy Settings Click Apply. J2SE JRE Version 1.3.1 Complete these steps in order to specify the settings for J2SE JRE release 1.3.1: Choose Start > Control Panel > Java Plugin 1.3.1_X. In the Java(TM) Plug-in Control Panel window, check the Enable Java Plug-in check box, and the Recycle Classloader check box in the Basic tab (see Figure 11). Figure 11 – J2SE JRE release 1.3.1: Basic Settings Go to the Advanced tab. Select the Use Java Plug-in Default option, and check the Enable Just in Time Complier check box (see Figure 12). Figure 12 – J2SE JRE release 1.3.1: Advanced Settings Go to the Browser tab. Check the Netscape 6 check box (see Figure 13). Figure 13 – J2SE JRE release 1.3.1: Browser Setting Go to the Proxies tab. Check the Use browser settings check box (see Figure 14). Figure 14 – J2SE JRE release 1.3.1: Proxy Settings Click Apply. J2SE JRE Version 1.4.2 Complete these steps in order to specify the settings for J2SE JRE release 1.4.2: Choose Start > Control Panel > Java Plugin. Select the Hide console option in the Java Console section, and check the Show Java in System Tray check box in the Basic tab (see Figure 15). Figure 15 – J2SE JRE release 1.4.2: Basic Settings Go to the Advanced tab. Select the Use Java Plug-in Default option (see Figure 16). Figure 16 – J2SE JRE release 1.4.2: Advanced Settings Go to the Browser tab. Check only the Mozilla 1.1 or later check box (see Figure 17). Figure 17 – J2SE JRE release 1.4.2: Browser Settings Go to the Proxies tab.