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9680911bca
Wallet.saveToFile failed to remove original wallet file because WalletTool
left open input stream. This error happened on Windows-specific code path
Stacktrace:
```
Failed to save wallet! Old wallet should be left untouched.
java.io.IOException: Failed to delete canonical wallet file for
replacement with autosave
at com.google.bitcoin.core.Wallet.saveToFile(Wallet.java:834)
at
com.google.bitcoin.core.Wallet.saveToFile(Wallet.java:863)
at
com.google.bitcoin.tools.WalletTool.saveWallet(WalletTool.java:851)
at
com.google.bitcoin.tools.WalletTool.main(WalletTool.java:362)
```
To get started, ensure you have the latest JDK installed, and download Maven from: http://maven.apache.org/ Then run "mvn clean package" to compile the software. You can also run "mvn site:site" to generate a website with useful information like JavaDocs. The outputs are under the target/ directory. Alternatively, just import the project using your IDE. IntelliJ has Maven integration once you tell it where to find your unzipped Maven install directory. Now try running one of the example apps: cd examples mvn exec:java -Dexec.mainClass=com.google.bitcoin.examples.ForwardingService -Dexec.args="<insert a bitcoin address here>" It will download the block chain and eventually print a Bitcoin address. If you send coins to it, it will forward them on to the address you specified. Note that this example app does not use checkpointing, so the initial chain sync will be pretty slow. You can make an app that starts up and does the initial sync much faster by including a checkpoints file; see the documentation for more info on this. Now you are ready to follow the tutorial: https://bitcoinj.github.io/getting-started