Java Code Examples for sun.tools.attach.HotSpotVirtualMachine#executeJCmd()

The following examples show how to use sun.tools.attach.HotSpotVirtualMachine#executeJCmd() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: JCmd.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 2
Source File: JCmd.java    From jdk8u-dev-jdk with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 3
Source File: JCmd.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 4
Source File: JCmd.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 5
Source File: JCmd.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                }
            } while (n > 0);
        }
    }
    vm.detach();
}
Example 6
Source File: JmxModelImpl.java    From visualvm with GNU General Public License v2.0 5 votes vote down vote up 
private boolean loadManagementAgentViaJcmd(VirtualMachine vm) throws IOException {
    if (vm instanceof HotSpotVirtualMachine) {
        HotSpotVirtualMachine hsvm = (HotSpotVirtualMachine) vm;
        InputStream in = null;
        try {
            byte b[] = new byte[256];
            int n;
            
            in = hsvm.executeJCmd(ENABLE_LOCAL_AGENT_JCMD);
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");    // NOI18N
                    System.out.print(s);
                }
            } while (n > 0);
            return true;
        } catch (IOException ex) {
            LOGGER.log(Level.INFO, "jcmd command \""+ENABLE_LOCAL_AGENT_JCMD+"\" for PID "+vmid+" failed", ex); // NOI18N
        } finally {
            if (in != null) {
                in.close();
            }
        }
    }
    return false;
}
Example 7
Source File: JCmd.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                }
            } while (n > 0);
        }
    }
    vm.detach();
}
Example 8
Source File: JCmd.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 9
Source File: JCmd.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 10
Source File: JCmd.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 11
Source File: JCmd.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 12
Source File: JCmd.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 13
Source File: JCmd.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 14
Source File: JCmd.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up 
private static void executeCommandForPid(String pid, String command)
    throws AttachNotSupportedException, IOException,
           UnsupportedEncodingException {
    VirtualMachine vm = VirtualMachine.attach(pid);

    // Cast to HotSpotVirtualMachine as this is an
    // implementation specific method.
    HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
    String lines[] = command.split("\\n");
    for (String line : lines) {
        if (line.trim().equals("stop")) {
            break;
        }
        try (InputStream in = hvm.executeJCmd(line);) {
            // read to EOF and just print output
            byte b[] = new byte[256];
            int n;
            boolean messagePrinted = false;
            do {
                n = in.read(b);
                if (n > 0) {
                    String s = new String(b, 0, n, "UTF-8");
                    System.out.print(s);
                    messagePrinted = true;
                }
            } while (n > 0);
            if (!messagePrinted) {
                System.out.println("Command executed successfully");
            }
        }
    }
    vm.detach();
}
Example 15
Source File: JInfo.java    From openjdk-jdk9 with GNU General Public License v2.0 4 votes vote down vote up 
private static void sysprops(String pid) throws IOException {
    HotSpotVirtualMachine vm = (HotSpotVirtualMachine) attach(pid);
    InputStream in = vm.executeJCmd("VM.system_properties");
    System.out.println("Java System Properties:");
    drain(vm, in);
}
Example 16
Source File: JInfo.java    From openjdk-jdk9 with GNU General Public License v2.0 4 votes vote down vote up 
private static void commandLine(String pid) throws IOException {
    HotSpotVirtualMachine vm = (HotSpotVirtualMachine) attach(pid);
    InputStream in = vm.executeJCmd("VM.command_line");
    drain(vm, in);
}
Example 17
Source File: JInfo.java    From openjdk-jdk9 with GNU General Public License v2.0 4 votes vote down vote up 
private static void flags(String pid) throws IOException {
    HotSpotVirtualMachine vm = (HotSpotVirtualMachine) attach(pid);
    InputStream in = vm.executeJCmd("VM.flags");
    System.out.println("VM Flags:");
    drain(vm, in);
}