"ERROR:Could not find java.nio.file.Paths" when using Oracle JDK 1.7
- by Ankit
I want to try out some features rolled out in Oracle's new JDK 1.7. I followed the post:- Oracle JDK 1.7 but the post doesn't seem to help.
I was trying to fetch out the structure for java.nio.file.Paths class file but got the following error:-
buffer@ankit:~$ javap java.nio.file.Paths ERROR:Could not find java.nio.file.Paths
However i can easily get the information about class structures till JAVA SE 1.6, here is an example:-
buffer@ankit:~$ javap java.lang.Object
Compiled from "Object.java"
public class java.lang.Object{
public java.lang.Object();
public final native java.lang.Class getClass();
public native int hashCode();
public boolean equals(java.lang.Object);
protected native java.lang.Object clone() throws java.lang.CloneNotSupportedException;
public java.lang.String toString();
public final native void notify();
public final native void notifyAll();
public final native void wait(long) throws java.lang.InterruptedException;
public final void wait(long, int) throws java.lang.InterruptedException;
public final void wait() throws java.lang.InterruptedException;
protected void finalize() throws java.lang.Throwable;
static {};
}
Running java -version gives the following result:-
buffer@ankit:~$ java -version java version "1.7.0_09" Java(TM) SE
Runtime Environment (build 1.7.0_09-b05) Java HotSpot(TM) 64-Bit
Server VM (build 23.5-b02, mixed mode)
SYSTEM INFORMATION
buffer@ankit:~$ sudo update-alternatives --config java
[sudo] password for buffer:
There are 4 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java 1061 auto mode
1 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java 1061 manual mode
2 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java 1051 manual mode
3 /usr/lib/jvm/jdk1.7.0_09/ 1 manual mode
* 4 /usr/lib/jvm/jdk1.7.0_09/bin/java 1 manual mode
buffer@ankit:~$ sudo update-alternatives --config javac
There are 2 choices for the alternative javac (providing /usr/bin/javac).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-6-openjdk-amd64/bin/javac 1061 auto mode
1 /usr/lib/jvm/java-6-openjdk-amd64/bin/javac 1061 manual mode
* 2 /usr/lib/jvm/jdk1.7.0_09/bin/javac 1 manual mode
buffer@ankit:~$ sudo update-alternatives --config javaws
There are 3 choices for the alternative javaws (providing /usr/bin/javaws).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/javaws 1061 auto mode
1 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/javaws 1061 manual mode
2 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/javaws 1060 manual mode
* 3 /usr/lib/jvm/jdk1.7.0_09/bin/javaws 1 manual mode
The directory structure of /usr/lib/jvm/ is as follows:-
buffer@ankit:~$ ls -l /usr/lib/jvm/
total 24
lrwxrwxrwx 1 root root 24 Dec 2 2011 default-java -> java-1.6.0-openjdk-amd64
drwxr-xr-x 4 root root 4096 Nov 8 16:24 java-1.5.0-gcj-4.6
lrwxrwxrwx 1 root root 24 Dec 2 2011 java-1.6.0-openjdk -> java-1.6.0-openjdk-amd64
lrwxrwxrwx 1 root root 20 Oct 25 00:01 java-1.6.0-openjdk-amd64 -> java-6-openjdk-amd64
lrwxrwxrwx 1 root root 20 Oct 25 06:59 java-1.7.0-openjdk-amd64 -> java-7-openjdk-amd64
lrwxrwxrwx 1 root root 24 Dec 2 2011 java-6-openjdk -> java-1.6.0-openjdk-amd64
drwxr-xr-x 7 root root 4096 Nov 8 16:24 java-6-openjdk-amd64
drwxr-xr-x 3 root root 4096 Nov 8 16:24 java-6-openjdk-common
drwxr-xr-x 5 root root 4096 Nov 8 05:48 java-7-openjdk-amd64
drwxr-xr-x 3 root root 4096 Nov 8 05:48 java-7-openjdk-common
drwxr-xr-x 8 buffer buffer 4096 Sep 25 09:08 jdk1.7.0_09
Any help would be highly appreciated.
