"F:\Program Files\Java\jdk1.7.0\bin\java.exe" -Xms560M -Xmx1024M -jar Minecraft.jar
Heap size: 989.0
Heap is big size
run complite
update not found: old f730ce27c771f35bcacf438015e5d91f, new: f730ce27c771f35bcacf438015e5d91f
Exception in thread "Thread-1"
java.lang.ClassFormatError: Truncated class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at net.minecraft.src.Block.<clinit>(Block.java:1007)
at net.minecraft.src.TextureWaterFX.<init>(TextureWaterFX.java:23)
at net.minecraft.client.Minecraft.<init>(Minecraft.java:45)
at net.minecraft.src.MinecraftAppletImpl.<init>(MinecraftAppletImpl.java:19)
at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:33)

at net.minecraft.Launcher.replace(Launcher.java:166)
at net.minecraft.Launcher$1.run(Launcher.java:108)