问题
I keep getting this error during runtime and I have no idea what is causing it. It believes there is a file missing?
Caused by: java.io.FileNotFoundException: C:\Program Files\Java\jdk1.7.0_07\lib\currency.data
What is currency.data and can anyone suggest why this is happening, my JDK isn't that old since we're in 7u17 now.
Exception in thread "AWT-EventQueue-0" java.lang.InternalError
at java.util.Currency$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.Currency.<clinit>(Unknown Source)
at java.text.DecimalFormatSymbols.initialize(Unknown Source)
at java.text.DecimalFormatSymbols.<init>(Unknown Source)
at java.text.DecimalFormatSymbols.getInstance(Unknown Source)
at java.text.NumberFormat.getInstance(Unknown Source)
at java.text.NumberFormat.getNumberInstance(Unknown Source)
at java.util.Scanner.useLocale(Unknown Source)
at java.util.Scanner.<init>(Unknown Source)
at java.util.Scanner.<init>(Unknown Source)
at ciphor.CiCompile$7.actionPerformed(CiCompile.java:458)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: C:\Program Files\Java\jdk1.7.0_07\lib\currency.data (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
... 48 more
I'm running my program with the JDK environment, I checked my jre7 folder and currency.data is present there! Why is it only present in the jre folder?
回答1:
I got a similar error and this is just to help other people who may fall into the same trap :)
Error :
java.lang.InternalError: java.io.FileNotFoundException: null/lib/currency.data (No such file or directory)
This is because I set the global properties which turns out to be a very un-clever thing to do.
System.setProperties(new Properties());
The System properties are populated with very important data including:
- path.separator
- user.dir
- file.encoding
- file.separator
- java.io.tmpdir
So basically don't do the above unless you know what you are doing.
If you want to a a property, do this instead:
System.getProperties().put("SOME_KEY", "SOME_VALUE");
or
Map myCustomMapOfProps = ...
System.getProperties().putAll(myCustomMapOfProps);
回答2:
This is my solition. You can add this in your code:
System.setProperty("java.home", "C:\\Program Files\\Java\\jdk1.8.0_60\\jre");
You must substitute the path of yours jdk version.
回答3:
I had the same problem. It was caused by a Java verison conflict ("JAVA_HOME" was set to 1.7 and the property "-Djava.home" was set to 1.6).
I was using mvn to build the project and in the environment variable MAVEN_OPTS the option "java-home" was set to the WRONG value:
MAVEN_OPTS = -Xmx512m -XX:MaxPermSize=256m "-Djava.home=C:\Program Files\Java\jdk1.6.0_35\jre"
Just CORRECT it to:
MAVEN_OPTS = -Xmx512m -XX:MaxPermSize=256m
also check your other environment variables:
MAVEN_OPTS
JAVA_HOME
回答4:
I found that currency.data is found in either:
C:\Program Files\Java\jdk1.7.0_17\jre\lib
or
C:\Program Files\Java\jdk1.7.0_07\lib
For some reason, when I execute my program, Java doesn't know to look one directory deeper.
回答5:
In the old skool days, Sun specified that the JAVA_HOME should point to JDK_HOME/jre if a JDK was installed instead just the JRE.
This differentiation has slowly eroded for the same reason that 'exalator' is becoming an acceptable pronunciation for 'escalator': ubiquity.
At any rate some older apps still assume JAVA_HOME is the root of the JRE
回答6:
JDK 1.7.0_43 does not have currency.data under lib/, only within jre/lib. That forces me to change the build scripts to use JDK for compiling and then to use JRE for unit tests. Unless there is a better way.
回答7:
I had the same problem for a webapp deployed in wildfly 10 after installing a new jre while the server was running. Restarting the server resolved the problem.
来源：https://stackoverflow.com/questions/15823126/weird-java-runtime-error-currency-data