Minecraft Forums

Unmodded, untouched vanilla.

Have tried deleting and re downloading the version dozens of times, no change.

Many friends I've talked to get the exact same results.

Can anyone get a 1.5.2 or lower version of minecraft to run without crashing?




---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 11/28/16 9:10 PM
Description: Failed to start game

java.lang.NullPointerException
at java.io.Reader.<init>(Reader.java:78)
at java.io.InputStreamReader.<init>(InputStreamReader.java:97)
at bp.a(SourceFile:64)
at bp.a(SourceFile:100)
at net.minecraft.client.Minecraft.a(SourceFile:252)
at avv.a(SourceFile:56)
at net.minecraft.client.Minecraft.run(SourceFile:507)
at java.lang.Thread.run(Thread.java:745)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 48783384 bytes (46 MB) / 127139840 bytes (121 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
LWJGL: 2.9.0
OpenGL: GeForce 210/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

After a bit of effort reverting back to Java 7, and getting minecraft to acknowledge it...

It actually works now! Thank you for the advice!

Alright well, it WAS working for a few days... Now it's having issues again.

So the game decided to go back to using a version of Java 8 even though I didn't have it installed. Turns out minecraft just downloads one for you and starts using their own. Why it decided to do this only after four days I don't know...

Alright, so I changed my profile settings to go back and use the Java 7 I was running minecraft on previously, and it still crashes:

---- Minecraft Crash Report ----
// I just don't know what went wrong

Time: 12/3/16 3:15 AM
Description: Failed to start game

java.lang.NullPointerException
at java.io.Reader.<init>(Unknown Source)
at java.io.InputStreamReader.<init>(Unknown Source)
at bp.a(SourceFile:64)
at bp.a(SourceFile:100)
at net.minecraft.client.Minecraft.a(SourceFile:252)
at avv.a(SourceFile:56)
at net.minecraft.client.Minecraft.run(SourceFile:507)
at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_79, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 52753208 bytes (50 MB) / 126353408 bytes (120 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
LWJGL: 2.9.0
OpenGL: GeForce 210/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null



I'm going out on a limb here and assuming minecraft is just designed to HATE running any version of Java except the one it's been predestined to use? Is there anything I can do to make it work, and keep it working?



Edit: So apparently deleting the .minecraft folder in appdata makes it work again, possibly for just another four days... It's not the most elegant solution but I could do that until a more long term answer comes up.

The puzzling thing though is why this even works? What is minecraft doing that let's it run 1.5.2 and lower just fine, but only after deleting the .minecraft folder? And only for roughly four days?


New Info Edit:

So it's not a time limit, it goes back to crashing when I switch to and play a later version profile like 1.11. It seems minecraft will use your installed java until you play a later version, then it will only use the java 8 that it comes with. Is there anyway around this...?